Diesel Tractor Hard To Start When Cold

It's that time of year again. I have an old Oliver 1655 Diesel tractor that, particularly at startup, blows a fair amount of blue smoke at idle to 1200 rpms or so. Any chance that someone has "Overdosed" it with ether, and broken the rings or lands ???. Starting a tractor when it's REALLY cold is a bit of a challenge. All diesel engines are designed to run at about. Operate at minimum of 1200 rpm if idling longer than three minutes. One problem though,you have to crank the engine a lot to start it,whether it is cold or warm. Keep in mind that the engine will need to turn over quickly in order to build that much compression. What should be the correct starting procedure for this tractor?. During the summer it would always start but for about minute it would smoke and shake a bit. All of a sudden has become very hard to start. It ran just fine driving it home but we took it to the local coop shop just to get it checked out and add some goodies to it and correct a few minor issues not on the engine (we dont have a heated shop so didnt want to do it ourselves right now). I was told that "all diesels smoke when started" when I inquired about the condition of the engine on a 7790 diesel tractor. It still is hard to start. Engine is hard to start when cold. *Bobcat may choose to list manufacturer suggested retail pricing or promotion pricing of its products and services. Either one will make your tractor hard to start and produce white smoke at startup. I just bought this tractor and am having a trouble starting the engine when cold, like first time trying to start in morning. You need to have a heater on it - if it came from cold area of the country likely already does - and plug it in for 1 to 2 hours to start it in cold weather. What makes a diesel hard to start?. It will hard to start in cold wheather: John Deere Review -- John Deere Tractors Discussion Forum. Keep in mind that the engine will need to turn over quickly in order to build that much compression. It has the engine rebuilt but is very hard to start, the fuel pump is set a G. Engine pre-heaters such as Eberspaecher Hydronic S3 are designed to provide reliable engine starts in cold weather. Winterizing Your Tractor Just don’t choose the coldest days to start ‘er up. THe first cold day I went to start it up I held the button in for a good 20 - 30 seconds and fried every glow plug. You need to take a compression reading and see that is the reason. I have to give it a boost of starting fluid while turning it over in order to get it to fire up. Understating Why Diesel Engines are Hard to Start in Cold Weather Attempting to start Diesel engines in cold or sub zero temperatures is extremely difficult and usually an impossible task, unless appropriate accessories has been added to the engine to assist in such starting. Measuring cold cranking amps gives someone a good idea of what they can expect from their battery in some of the worst conditions possible for starting a vehicle. (885n) david brown diesel tractor w/q cab (s/n 11000001 to 11021851) (1/76-12/83) (950) david brown implematic livedrive tractor (1/59-12/61). , you can easily get condensation inside the fuel tank and other vital areas. When they have a hard time starting when hot, it is usually caused by the fuel. See related products below for original style 3-position switch for Diesel w/o Cold Start & Gas models. Are there instances where someone may need to start a car in temperatures colder than 0°F or crank an engine for longer than 30 seconds or both? Absolutely. Situation or Problem The John Deere Engine Intake Manifold Air Heating System has introduced a 12 volt manifold heater kit. This may be a leak or a bad fuel pump. However, for effective starting and cold weather operation, a little extra care is necessary. It will probably continue to start and run ok for several months without doing any work on it, but the list of things that need attention is growing all the time. But why won't it start when its cold and what would cause it to diesel?. With their gear driven attachments and high horsepower, they perform jobs that exceed the capability of standard trucks How to Start a Ford Tractor | Hunker. Many times thats all you need to do the trick and it will start. It has the shift lever on the column. However, as with most heavy equipment, problems and breakdowns can and do. And let's all hope that spring will come soon!. Go easy on the devil juice!. This would make an ideal. Well the same can be said about diesel engines and driveline components. To avoid an explosion, never use starting fluid to start engine. If all else fails, I have an old british tractor that is a bear to start in cold weather. Here in southwest Missouri there was an influx of Zetor and Belerus tractors 1n the mid 90's but now you would be hard pressed to find around here, they were not a good tractor to start with plus no service, parts or dealer support. This page was placed last in the list on purpose. There are only three things that are needed to make a diesel run;. I have had this tractor for about 20 years, and it is a workhorse!. An older diesel citroen a friend drove took about 30 seconds of heating this way before it was worth even trying to actually start. Stranger things have happened, you may want to inspect the wires in the glow plug circuit. To see my uncles latest project click the link below https://m. Unlike gasoline engines, diesels do not use spark plugs to ignite their fuel; they rely instead on proper fuel and air ratios to cause combustion. They supply added heat, enough to ignite the fuel even when the ambient temperature is low. They do not take as long to warm up, and if you have a newer model, you can just start them up and go. com - The Friendliest Tractor Forum and Best Place for Tractor Information. High idle is fine but idle smokes and runs rough little slowly and gets worst as it idles longer. Hi, you seem to know your stuff so I would be grateful for some advice. Also currently have a '58 model 720 diesel electric start to trade for my grandfather's tractor. Re: Ford 3000 Diesel-Hard to Start Hi TGriffin, I use to have a 3000 that had the same starting problem. All tractors run on used tractor parts!This has been our saying for almost three decades in the used tractor parts business. kevin wrote on Sunday, May 23, 2004 (PDT): I have john deere 720diesel am looking for the putt putt motor,anyone know where i could find one. Volumes have been written about starting diesels – especially when it’s cold. That's why diesels continue to be a popular option in many pickup trucks today. All diesel engines are designed to run at about. COLD WEATHER STARTING—DIESEL TRACTOR ACCESSORIES Glow Plug kits are available for use on the diesel tractor to facilitate cold weather starting. Food for Thought The engine in your Kubota is designed to operate under load, shock cycle, temperature, dust, debris and climate extremes. The engine rpm's would all of the sudden drop to 1600-1700 and it would start blowing grey/white smoke for a bit then pick back up. Any chance that someone has "Overdosed" it with ether, and broken the rings or lands ???. - Eliminates ether start rattle - Reduces black and white smoke - Gets the vehicle in operation faster. In above freezing temperatures it starts fine, but when it gets colder out it becomes more difficult. John Deere tractors range from 18 horsepower to 450 horsepower. It has the engine rebuilt but is very hard to start, the fuel pump is set a G. I have fresh diesel in it (Off road #2) and after it is running is very stong and does not run hot. Black diesel engine smoke when starting on cold start, or while accelerating hard, is not uncommon with older cars. Power Service Diesel Fuel Supplement Antigel + Cetane Boost is a winterizer/antigel that is used in the cold winter months to prevent fuel gelling and keep fuel filters from plugging with ice and wax. old retiring farmers grandson bought it. I have replaced the battery, and removed the spark plug. One problem though,you have to crank the engine a lot to start it,whether it is cold or warm. Warm up time. We've learned over the years that you must not let it run out of fuel or it's just hard to get started again. Most older models had the adjustment on the alternator. I have a 2000-4100 John Deere Tractor that is hard starting when left sitting for a day or more. Cold engine, with cold air cannot create enough heat to ignite the fuel, hence the need for glow plugs. It started a little hard and popped some black smoke from sitting all winter, but this time it ran out into the driveway and quit (black smoke). Most Ms have an electric starting and lighting system, but not all do. From 12-volt lawn mower batteries to heavy-duty riding mower batteries, we're happy to take care of your personal and commercial battery recycling. Was never worked Hard look at bucket orginal. That's why every Batteries Plus Bulbs location offers a drop-off point for your used lawn tractor and mower batteries. Keep in mind that the engine will need to turn over quickly in order to build that much compression. I can't figure why it's so hard to start. Does that make any difference in the glow plugs working properly. Page 1 of 2 - John deere 6410 won't start in the cold - posted in Tractor Talk: We bought a 6410 and picked it up it started fine even being cold got it home and have some days below freezing and now it wont start left it plugged in for 3 hours still no good drug it in the heated shop left sit for 3 hours fires right up took it back out side with a new battery and now it wont start even with a. My Kioti tractor is hard to crank when cold, it has 460 hrs on it. Kubota 1702 diesel engine belted to a Quincy 5120 air compressor. I can't get the engine to crank. I let the glow plug light go out, then it spins easy (even with out the compression release), it will almost start, but will choke out and flood. It was equipped with a magneto that seemed to me to have divine power. Always clean your injectors with an effective and reliable fuel system cleaner. Never had an IH that started this hard? I suspected that the fuel was turned up and using Danny's method I turned it back down two turns (40HP). Not really sure what to make of it--I have auto-rx'd it, and am past the rinse stage now. Thats why to avoid cold start problems, a little more of fuel is injected to ensure that there is enough fuel mixed with air even. ©2000-2016 - TractorData™. The engine had recently been rebuilt with a crank re-grind, head skim and piston/liner replacement. The hard starting problems of diesel engines in below zero / freezing temperatures are caused by two factors. But why won't it start when its cold and what would cause it to diesel?. This is the tractor I swapped the combine motor into last winter. Exhaust very dirty (black pungent smoke) for the first minute or so. Either one will make your tractor hard to start and produce white smoke at startup. Biodiesel fuel encourages the growth of microorganisms which may cause degradation of the fuel. It work really well but I used it lately to pick up dead leaf and it was really hard to start, it took like 10-15 pull to start. Before idling for 8–10 minutes, check the operator’s manual. I have replaced the battery. com - The Friendliest Tractor Forum and Best Place for Tractor Information. From 12-volt lawn mower batteries to heavy-duty riding mower batteries, we're happy to take care of your personal and commercial battery recycling. It is hard to recall the last time we saw a diesel mechanic in a nicely pressed button up shirt and tie under his overalls, but try to look past that as you watch the videos. Replace a fanbelt on john deere 4020 diesel tractor. use preheat hold one for 10 to 25 seconds. Nice Farmtrac 45 Diesel Tractor. I spun the engine for about 15 seconds or so five times with the decompresion knob pulled. My problem is that I live in Brooklyn, NY and have a hard time starting it up when it gets very cold out. One problem though,you have to crank the engine a lot to start it,whether it is cold or warm. The listed prices do not include freight, dealer prep, surcharges, sales tax or options and accessories. I think the fuel may be bleeding back in the line away from the engine. We find that cheaper starting fluid does less damage (because it contains less of the active ingredient, ether). You can always spot a John Deere lawn tractor by its traditional bright green and yellow paint job. this si not a glow plug but a heater coil in hte intake manifold and. I have an old Oliver 1655 Diesel tractor that, particularly at startup, blows a fair amount of blue smoke at idle to 1200 rpms or so. Buy Massey-Ferguson Tractor Intake Manifold Pre-Heater Glow Plug for Cold-Start/Thermostart - fits most MF Diesel Engine w/ screw terminal: Spare & Replacement Parts - Amazon. When you try to start it up, it starts puffing white smoke right away but that's all. I have a B20 Kubota 20hp and it is hard to start when already warm. 9 Cummins are known for easy starts, even in cold weather. Access to the gas tank: Weighs 28 lbs. Notice: Every attempt is made to ensure the data listed is accurate. A diesel is hard to start in general in cold temps and I'm impressed that it started at -5* without plugging in the block heater. Slow turn over cold start up and won't start. Trusted manufacturers, top brands, low prices and free shipping over $49! Call 866-255-7212. I was told it was the glow plugs but I don't think so,they wouldn't effect warm starting. I had a Volkswagon Rabbit diesel that was hard to start when cool. Massey 65 Diesel - cold start without ether. Re: Hard starting in cold weather questions « Reply #13 on: December 17, 2013, 06:45:36 PM » When you shut down a hot tractor in cold weather, or if the tractor had wetness on it from dew or rain etc. To you guys that have tractors, My tractor is under shelter with no heat. One component of the cold start support is the glow plug. Won't start. Diesel engines don't produce a lot of heat when idling. Well the same can be said about diesel engines and driveline components. Types of operation, such as excessive idling, short run time, light work and city type driving, all contribute to deposit formation which can result in poor cold start. mercedessource Tech help - Summary list of the most common causes and parts needed to fix them The common problem is listed and the reference word or words for the part to fix it are listed as a solution. Use a magnetic block heater if your Kubota does not have a water jacket heater to keep the engine block, oil pan and oil warm. Massey Ferguson tractor troubleshooting guide In this section we will provide information & advice to help you solve common problems experienced with your Massey Ferguson tractor. Neighbor has a mid-80s garden tractor with a 2 cylinder Lombardini diesel. Read honest and unbiased product reviews from our users. Takes approx. Fuel and ENOUGH Compression are all you need. use preheat hold one for 10 to 25 seconds. Should get compression gauge next week. No problem. The engine has a preheater and does work. It was when the injection pump started to leak to the point something had to be done. We have no affiliation, real or implied, with Long Tractor Company or Long Manufacturing. Re: Cranks, wont start w/o ether If you need a lift pump, go to a cummins place, or read the threads on the holley and carter replacements. This machine is almost too much fun to be legal, and it can do all sorts of really useful things while it’s making itself enjoyable. I'm a new member. A small group of farmer folk keep an old tractor around solely for belt power for such things as stationery threshing machines. 3:1 compression ratio. Detroit diesel engines cold start along with 6. Some old diesel tractors from the 1940's where gasoline start and then ran on diesel once the engine was warm. I work 12's, and on the stupid cold days (doesn't break zero) I pop out and start it up ever 3-4 hours and let it run for a good 20 minutes. You should start seeing black smoke if you load it down a little more. In general, gasoline engines are easier to start in very cold weather. High idle is fine but idle smokes and runs rough little slowly and gets worst as it idles longer. I have had both gas and diesel 454's. When he found out I got a royal butt chewing in front of everybody over how stupid I could be to do that and if I had ever been around diesel engines I would have known never to do that. Has rear hydraulics, LA481 loader, with Turf Tires. By Henry Guenter. So by now you have seen that the tractor runs. The re-wiring began when we replaced the original Lucas dynamo with a rebuilt Delco 10-SI alternator. ©2000-2016 - TractorData™. Diesel engines have two things that will cause your problem. Neighbor has a mid-80s garden tractor with a 2 cylinder Lombardini diesel. chapter 7 Diesel engine sart ting systems After reading this chapter, the student should be able to: 1. Newer tractors may require 3–5 minutes of idling or less. Hard starting x730- cold. 9 Cummins are known for easy starts, even in cold weather. My Kioti tractor is hard to crank when cold, it has 460 hrs on it. I changed the air and fuel filters. There is no clutch starter safety switch, but there is a range shift lever starter safety switch. It just cranks, cranks until the battery goes low or dead. You are viewing an older hard to find Kubota L3010 GST Diesel Tractor Loader 4 x 4 1586 hrs Rear Hydraulics. There is no clutch starter safety switch, but there is a range shift lever starter safety switch. I have never thought I could afford a new tractor so I know quite a bit about starting old ones. Don't overtighten the belt. One problem though,you have to crank the engine a lot to start it,whether it is cold or warm. Start the tractor up with the trans-axle in neutral and then push the travel lever fully forward. Massey Ferguson tractor troubleshooting guide In this section we will provide information & advice to help you solve common problems experienced with your Massey Ferguson tractor. Ice crystals will behave like any other hard particulate, loading in filters or causing abrasive wear to fuel systems. once it gets below 40 seems to be hard to start. But why won't it start when its cold and what would cause it to diesel?. For winter weather, above 150 F. Biodiesel fuel encourages the growth of microorganisms which may cause degradation of the fuel. It was when the injection pump started to leak to the point something had to be done. You need to have a diesel engine in top mechanical condition, with glow plugs that work. Notice: Every attempt is made to ensure the data listed is accurate. Attempting to start Diesel engines in cold or sub zero temperatures is extremely difficult and usually an impossible task, unless appropriate accessories has been added to the engine to assist in such starting. Today i hooked up a 4ft finishing mower and was able to put a load on the tractor. It had 32 percent more power than the regular (non-super) MD. Made in the USA; Satisfaction guaranteed. Kubota User’s Guide to Biodiesel Fuel (BDF) Concentrations up to 20% (B20) Biodiesel fuel may cause restricted or clogged fuel filters during cold weather conditions, resulting in the engine not operating properly. So threw in some injector cleaner hoping it may be the problem. Does that make any difference in the glow plugs working properly. My problem is starting the tractor on cold mornings. Notice: Every attempt is made to ensure the data listed is accurate. This typically occurs due to the engine being too cool to burn the fuel, often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector. Gas-powered and diesel-powered engines ignite differently. I have replaced the battery. I have a JD 755 diesel utility tractor that will not start, battery, glow plugs good - John Deere 4020 Gas & Diesel Tractor question Search Fixya Press enter to search. Attempting to start Diesel engines in cold or sub zero temperatures is extremely difficult and usually an impossible task, unless appropriate accessories has been added to the engine to assist in such starting. , you can easily get condensation inside the fuel tank and other vital areas. In selecting a used tractor, steer clear of "tricycle" models with the front wheels set close together, as they are subject to tipping over and hard to steer on rough ground. The "10 Series" was not without problems. A tractor, in the same manner as a car, uses a DC electrical system. Use a magnetic block heater if your Kubota does not have a water jacket heater to keep the engine block, oil pan and oil warm. Once you own a tractor, you really need to keep it in working order. Still starts real hard. Newer tractors may require 3–5 minutes of idling or less. The tractor has been sitting for 5 years and not started much. By Henry Guenter. Any thoughts on this ?. A gasoline engine will not gel up-gasoline will pretty much always stay a liquid (The actual freezing point of gasoline is between -120F and -240F depending on the amount. In order for an engine to start after it has been sitting for even just a few hours, the engine needs to be choked to start. This design limits cold-start smoke and combustion noise, and allows immediate application of load. The tractor starts and runs fine,without excess smoke. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Your tractor is doing well, andoperating very good if it starts in temps as low as 20 degrees. I've never hit the starter and it never does this when the air above 40*f. hard to start in cold wheather John Deere Review John Deere Review I live in Michigan and when the temp. It was when the injection pump started to leak to the point something had to be done. The re-wiring began when we replaced the original Lucas dynamo with a rebuilt Delco 10-SI alternator. Steps to Consider When Your Lawn Tractor Won’t Start in the Cold December 20, 2016 If you use your John Deere tractor to assist with snow removal or other winter-related tasks around your property, you’ve likely encountered an occurrence where your equipment won’t start as quick as it does in warmer temperatures. Page 1 of 2 - Cold weather starting - posted in Garden Tractor Forum: Just wondering what tricks or tips other might have for cold weather starting. Service the battery,(check the water) keep the cables clean, tight, and properly pre-heat the glow plugs. Attempting to start Diesel engines in cold or sub zero temperatures is extremely difficult and usually an impossible task, unless appropriate accessories has been added to the engine to assist in such starting. ©2000-2016 - TractorData™. Are these inj. Cold Weather Starting - When the temperature drops below freezing, do your tractor a favor, and slap a magnetic heater on the oil pan about 30 minutes before trying to start it. It came with the wiring harness, exhaust, starter, frame rails and the cold weather start kit. Hi All, I am new to this forum and to diesel engines. Diesel engines are equipped with things called glowplugs. The fuel filters were changed Saturday and he's not getting any water in the separator bowl. i have a 68 ford 5000. In the days when batteries were weak, unreliable and diesels were very hard to start, the pony engine made a lot of sense. cold start on my Ford 3000 diesel tractor tractor has been sitting for about 2 months it was about 20 degrees outside when I shot this video TRACTOR IS SOLD Skip navigation Sign in. It just cranks, cranks until the battery goes low or dead. You are viewing an older hard to find Kubota L3010 GST Diesel Tractor Loader 4 x 4 1586 hrs Rear Hydraulics. THe first cold day I went to start it up I held the button in for a good 20 - 30 seconds and fried every glow plug. These engines also offer better fuel economy. Thats why to avoid cold start problems, a little more of fuel is injected to ensure that there is enough fuel mixed with air even. Connected up diesel lines and got it running about 4 weeks ago after months sitting in the shed in bits! Took ages to get the air out of the diesel lines. Low fuel pressure It is in this area that most fuel supply problems occur. Troubleshooting Guide for Hard Starting Problems. rebuildable? The tractor runs strong,no oil consumption seems to have good compression but is very hard to start cold. I have a 2000-4100 John Deere Tractor that is hard starting when left sitting for a day or more. With your John Deere, I would tend to think that it is weak ground either at the cable or where tractor ground/starter mounts. Once you get the valves adjusted do a compression test on it. Here is some pointers that are. i will check this this weekend. I have a Yanmar 27Hp diesel outboard (yes a diesel outboard!) it's a great engine, uses next to no fuel, grunty and basic! The trouble is that I am getting whitish grey smoke on start-up and it continues after the engine has warmed up, it smells of diesel exhaust. I have to give it a boost of starting fluid while turning it over in order to get it to fire up. Stalling When Climbing on One Side Diesel Fuel Return line Kinked. A Yanmar diesel with around 400psi will become very hard to start. To avoid an explosion, never use starting fluid to start engine. Quite a few use only tractors and a whole ‘nother bunch prefer to combine power sources. Hi All, I am new to this forum and to diesel engines. I have a 2110 ford tractor. How to Start a Cub Cadet Tractor | Hunker. When he found out I got a royal butt chewing in front of everybody over how stupid I could be to do that and if I had ever been around diesel engines I would have known never to do that. I agree with you that the normal starting is hard by modern day diesel tractors, however resently I have to heat the engine (1500 watt block heater) to get it started. Does that make any difference in the glow plugs working properly. Use a magnetic block heater if your Kubota does not have a water jacket heater to keep the engine block, oil pan and oil warm. The battery is fully charged, and the dash lights and headlights are bright. On cold mornings when you need to get the tractor started take a teakettle of boiling hot water out and pour all over carburetor and intake manifold to warm it up a bit stay away from the plugs and plug wires. If I owned a car it would be a diesel too. Ideally, you should always allow your equipment to warm up for at least five minutes before operating. Start simple with fuses (the good ones have little to no resistance, bad ones infinite resistance) then wires, loose connections, etc. If so , it is odd that it is hard to start. To start your diesel tractor when its cold make sure to plug it in for several hours before use. and then it spits and spudders most of the time some back firing for the first five seconds and then it's runs fine. I have a John Deere diesel tractor that won't start. Don't worry, the information about adjusting your carb is on this page (way down at the bottom). Thanks for the information. A Yanmar diesel with around 400psi will become very hard to start. Just do not use ether to start your Kubota in cold weather period. He also says his Caterpiller does the same thing, just fires off compression. Had this problem last year dealer checked it out,and found nothing. It was equipped with a magneto that seemed to me to have divine power. Some cars are available with diesel engines, and you may be wondering whether buying diesel is a good idea. I was wondering if the starter from a FE35 will fit the TO35. That is just normal for a bigger diesel in cold weather. Engine is hard to start when cold. THis tractor is extremely hard to start when its 15 dgrees f or. The following list of cold weather tips should help your diesel pickup operate reliably throughout the coming winter. Next crank she fired up. Had this problem last year dealer checked it out,and found nothing. Top tips to keep your tractor running in cold weather in diesel because the water fraction will freeze before the diesel does. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. I have a 2000-4100 John Deere Tractor that is hard starting when left sitting for a day or more. COLD WEATHER DIESEL When temperatures drop, several things happen that can make a diesel hard to start. These East Block (Rumanian I believe built diesels) last a long time but are notorious hard starters, epecially in cold weather. on diesel injectors. My current problem is starting the tractor. If you could make an engine that burned both just as efficiently as the other, diesel would get 40mpg compared to gas's 30mpg (roughly), but the diesel may not start if it's too cold, for example (diesel doesn't combust with a spark, it combusts with a combination of heat and sheer pressure). What throttle position do you guys use to start cold, my bobcat 743 with a 3 cylinder Kubota diesel in it says to have the throttle at halfway. We have no affiliation, real or implied, with Long Tractor Company or Long Manufacturing. Use the following procedure: Place throttle in SLOW IDLE (900 rpm) position. Would the radiator hose heater work for starting in cold weather?? In the twentys and my ford 1910 is cold hearted. Once you get the valves adjusted do a compression test on it. See related products below for original style 3-position switch for Diesel w/o Cold Start & Gas models. Hard to start Kubota I know this is a tractor board, but bear with me. The Snap-Coupler hitch system became standard equipment in 1954. It has the engine rebuilt but is very hard to start, the fuel pump is set a G. A cold engine compression test should be performed. But with preheater or coolant heaters, they can run on, many times hard to start, but still not consuming oil. Welcome to the diesel Doctor discussion Board and Forum! Knowledge is power so our mantra is our best customers are educated customers. As a general rule, diesel engines are harder to start when cold than gasoline engines. May as well run a battery charger while you have the genset running. Never use ether or any other starting chemical to help start a diesel engine. It takes special tools and techniques to measure a diesel engine's compression safely. People familiar with diesel powered tractors in the days prior to 1960 will remember these tractors were not direct start as they are today. That means it has a voltage supply and a ground. When this happens, find out how to bleed a Kubota diesel engine or get professional assistance. That's why diesels continue to be a popular option in many pickup trucks today. The engine turned over rapidly. First you set the gas lever two notches up from idle. I think the fuel may be bleeding back in the line away from the engine. Many times thats all you need to do the trick and it will start. Attempting to start Diesel engines in cold or sub zero temperatures is extremely difficult and usually an impossible task, unless appropriate accessories has been added to the engine to assist in such starting. What throttle position do you guys use to start cold, my bobcat 743 with a 3 cylinder Kubota diesel in it says to have the throttle at halfway. Crank over the engine for 10-15 seconds, close the fuel bleed valve and attempt to start the tractor as you would normally do (don’t forget to preheat your glow plugs). In general, gasoline engines are easier to start in very cold weather. To find out the compression perform a cold engine compression test. A diesel type compression tester can be purchased for not a lot of $ on ebay, amazon or harbor fright. i will check this this weekend. Diesel engines have two things that will cause your problem. I have never thought I could afford a new tractor so I know quite a bit about starting old ones. People familiar with diesel powered tractors in the days prior to 1960 will remember these tractors were not direct start as they are today. COLD WEATHER DIESEL When temperatures drop, several things happen that can make a diesel hard to start. The engine has a preheater and does work.