John Deere M

[Keith-OR]

Install new points in distributor, gap them at .022. spark plugs look good, gap them .025 as manual says. I put in 3 1/2 gal.s of water in radiator. cleaned the fuel sediment bowl, then put in couple gallons of gas, opened up drain on bottom of carb too make sure it was getting gas. Turned ignition on and checked with meter to make sure there was voltage at distributor, correct voltage. Push starter rod, wa la it fired right up on first crank, and set there and purred like a kitten..

I found one problem, Fuel Sediment Bowl Glass is leaking where it screws into the tank. I drained the tank, took out the sediment bowl and will apply tef tape on it tomorrow. Put it back in, put in a small amount of gas to see if it still leaks. Any suggestion on stopping leak.

Thanks

 

[Hotflashjr]

Sounds like you found a good tractor there.

I do not use teflon tape anymore. Teflon tape will break down with fuel and can get into your carb passages making a mess. It rarely seals up the leak as well in my opinion.

I had a Farmall Cub leaking at the tank/fuel bowl and I used Permatex 85420 fuel resistant gasket dressing. It worked great. Two years and no leaks. Take the assembly back apart, clean, dry, apply the coating and let sit over night before adding fuel. This does not dry hard like a glue would so the assembly could come back apart in the future if needed.

This post was edited by Hotflashjr on 06/20/2023 at 04:29 am.

 

[Richard G.]

All sounds great Sir.
I use Blue Monster thread sealant on everything including gas lines.
Just used it the other day on the fuel bowl threads on my Case VAC.
I get it at Lowes.

 

[Keith-OR]

Thanks for suggestion on stopping leak. After further examination of the threads on the sediment bowl, found that it had been screwed on to far and stretched the threads. Someone tried to fix it with KB Weld. Any attempt to fix now would be putting a band aid on the problem, so I ordered a new sediment bowl assembly. To nice of a tractor not to fix it right..

Thanks again: Keith

 

[Keith-OR]

Install new sediment bowl assembly today.,, No leaks.. Just bad threads on old sediment bowl assembly..

Thanks for the suggestions
Keith

 

[apiarx]

Hey Keith! I have been working on an abused John Deere M for almost 2 years, not realizing how badly it had been treated. My sediment bowl leakage was due to a section missing from the top of the bowl. Like you, I just ordered a replacement set. This was compounded by a leak at fuel line connection to carburetor. My JD-M knowledgeable friend recommended Gasoila applied to fuel line connections. If your leak returns, try that product. It has worked for me for a long time.

BTW-I saw your post about receiving the JD-M manuals. I bought a service manual last year from ebay and was disappointed that it was photos of a well-used official manual. The info in it is accurate, but pages were missing, including the section on fastener torque settings. If you have time, it would be a great service if you could email me the torque settings for the exhaust manifold. My knowledgeable friend has a complete manual, but is not available now. I REALLY don't want to take a chance of blowing out the gasket, so right now I have a lovely green and yellow ornament in my shop!
Best wishes for enjoying your beautiful M!
Ken Cawthorne