ks as if it has had blow by between the exhaust valve and the cylinder. Could the engine be pulling oil into the cylinder on the down stroke? This is a verticle shaft engine and the oil return from the overhead valves is in this area. Does this sound like I am right. I don’t want to have to do a rebuild.
Garden
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I also have a John Deere LT155 Garden Tractor, and ‘I have issues with white smoke and cannot get it started. I have detected gas smell in the oil. Quick call to a JD service centre told me it was likely a head casket. If the smoke is white, then that is likely your problem.
How to Identify and Fix Common Gardening Problems ?
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There are several potential causes behind smoke pouring out of your John Deere. Low coolant levels, low engine oil levels, too much oil, bad injectors, plugged air filters, and leaking head gaskets are some of the most common reasons for a smoking John Deere.
A plume of white smoke is generally most noticeable at diesel startup, particularly when it`s cold. This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke.
Your lawn mower`s carburetor regulates the ratio of gasoline to air mixture. If the carburetor isn`t getting enough air, the mixture has a higher percentage of gasoline, which can create black exhaust smoke. It`s possible that a dirty or clogged air filter is preventing sufficient airflow into the carburetor.
White smoke coming out of your exhaust suggests that coolant or water has inadvertently entered the combustion chamber. When it`s burned within the block, it produces thick white smoke that exits through the exhaust.
White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused. Be careful of white smoke as it will irritate your eyes and skin.
A burning rubber smell
If your car smells like burning rubber, turn off the engine and check under the hood to see if anything looks out of place. Chances are that the smell results from a belt or other part slipping and rubbing against the hot engine. If you can`t identify the problem, take your car to a mechanic.
The most common cause of black smoke is a clogged air filter. Replace your mower`s air filter and this should resolve the problem. If you`re still seeing smoke, the air-to-fuel ratio may be off, in which case the lawn mower`s carburettor might need to be adjusted (ideally by a lawn mower repair specialist).
The white smoke is the engine burning off all the excess oil. The fix – drain the excessive oil, and idle the engine until the smoke clears. This may take 5 minutes or so. Too much oil will cause other problems, smoke, poor running, no running, leaks, engine damage.
White Smoke
In extreme cases, you will need to replace your head gasket. At the first sign of white smoke you can try head gasket repair treatment to seal the leak before you do serious damage to your engine.
If you`ve noticed your lawn mower smoking and leaking oil, it`s most likely due to a dirty air filter. The air filter in an engine keeps debris and dirt out of it, while the grass and dust accumulate over time. When the air filters are clogged, oil can leak into the engine and out of the exhaust system.
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Kohler CV15S on a John Deere LT155 smokes alot. I pulled the head off to check the cylinder. The cylinder looks perfect but the head gasket looks as if it has had blow by between the exhaust valve and the cylinder. Could the engine be pulling oil into the cylinder on the down stroke? This is a verticle shaft engine and the oil return from the overhead valves is in this area. Does this sound like I am right. I don’t want to have to do a rebuild.
ANSWER : I also have a John Deere LT155 Garden Tractor, and ‘I have issues with white smoke and cannot get it started. I have detected gas smell in the oil. Quick call to a JD service centre told me it was likely a head casket. If the smoke is white, then that is likely your problem.
Looking for information on a John Deere tractor S/N CH0850S017329 and the current estimated value of this tractor with approximately 2,700 hours on it.
ANSWER : Can you please post the model number of the tractor? Thanks
What type of oil doe it use – John Deere Gx75 Rx75 Srx75 Sx75 130 9hp Starter
ANSWER : 10W-30 Turf Gard
http://www.greenpartstore.com/John-Deere-GF-3-10W30-Turf-Gard-4-Cycle-Motor-Oil-Quart-TY22029.html
How do i replace a clutch on a JD 3020 tractor
ANSWER : Break it in half, then get with it.
Our john deere 400 is eating the belts for the front pto drive
ANSWER : Flat idler to left of belts is most likely seizing up during use.
Which way do i install thermatate in john deere 4020
ANSWER : Looking at stat top part looks like a handle around it
My john deere z425 start fine but does not move
ANSWER : Check drive pulleys and belts.
Free belt diagram john deere freedom 42 – John Deere 42 in. EZ Trak Bagger
