D-14 question

Eric Allen · Mar 27, 2015

I've got the 57 D-14 gas that smokes a cloud of blue smoke when it starts up. I put new plugs in and all were clean except the one by the fan, which was caked with oil crud. I expected to see all 4 were fouled up, but what does it mean if there's only one? Thanks!

Traditional Farmer · Mar 27, 2015

The front cylinder is the coolest cylinder,might want to check your thermostat
running too cold will cause incomplete combustion.

Eric Allen · Mar 27, 2015

I never thought of that thanks, I did have a leak in the radiator and put in stop leak, maybe it stuck the thermostat open

maxwell99 · Mar 28, 2015

I had a D 14 years ago, great old tractor.

I think it did the same thing,

A couple of things you might try to keep on using the tractor,

I use autolite #3116 plugs, they are good plugs, but in this cylinder with the oil soaked plug.

You can buy a plug extender, screw it in the head, then screw the plug into the plug extender, this gets the plug farther away from the oil,

You can buy a heat range (hot) plug for this cylinder.

These are just temporary fixes,

Did you let the motor get HOT? If the motor gets hot, the oil rings will get hard and no longer wipe the cylinders properly.

This happened to my friend, radiator got covered in grass, motor got hot, before he noticed it, from then on, the tractor smoked bad and used oil.

Fix was a motor rebuild.

Eric Allen · Mar 28, 2015

thanks for the reply, Im not sure, I may have, the temp guage doesnt work. I always thought it was hardened valve seals that was the problem, any idea how to tell which it is? The smoking stops once it's up to temp but is amazing until then. It is a great tractor, unfortunately I dont have anywhere indoors to do anything. Temp fixes will have to do until I find a shop. Thanks!

Dick L · Mar 28, 2015

I have a Farmall C that was that way when I bought it. I planned on an overhaul but with so many projects and I decided to try an old pullers suggestion of using seafoam and work it hard. I would put a half can in the gas with two gallon of gas and the other in the crankcase with new oil. Number 4 cylinder would foul the plug with oil after several hours of run time. I added a can to every two gallon of gas the same way without changing oil until the next spring. The second year I only added two cans of seafoam over the summer. Long story short it totally stopped smoking after the fifth year. I saw a slight difference before the end of the first summer. When I worked it I set the disc or spring tooth to where it had all it would handle in second gear.
The person that I bought the tractor said if had set inside for years before bought it. He got it running but had not used it in several years and had no reason to keep it. I am sure some of the rings were stuck in the pistons. After the forth year I took it to three tractor pulls in the 3000 pound class. Two firsts and a second.

maxwell99 · Mar 28, 2015

Eric,

First thing out of the box, get that temperature gauge fixed.

Remember: the fastest way to ruin a good motor is to lose oil pressure. The second fastest way to ruin a good engine is to let it overheat!!!!!!!

To good of a tractor to ruin the motor!!!

DrAllis · Mar 28, 2015

A D-14 never had any valve seals on it. Generally when they smoke blue, it's time for an overhaul. Hotter spark plugs is the one thing to try to stop fouling plugs. Might try cheap non-detergent straight 30 wt motor oil. Good oil burns easier.

sandman2234 · Mar 28, 2015

I would run a compression test on the engine. Then squirt about four teaspoons of oil in each cylinder and run the test again. If the pressure increases drastically with the oil, then it is probably a ring problem. If you have one (the front one) that is low and oil in the cylinder doesn't help it, then most likely it is a valve problem.
With it smoking blue on startup, and then clearing out some, my guess it is going to be a valve issue.
David from jax

Eric Allen · Mar 29, 2015

wow so there's nothing that can be done to the valves unless they need grinding? I didnt know that. I use 15/40 oil now, is 30 wieght thicker? I've always wondered if I should try that, never knew anything about if it was ok to use in a tractor. Thanks!

D-14 question

Eric Allen

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Traditional Farmer

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Eric Allen

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maxwell99

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Eric Allen

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Dick L

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maxwell99

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DrAllis

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sandman2234

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Eric Allen

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