John Deere B power trol valve trouble

Peter Markel · Sep 17, 2014

I recently purchased a 1948 John Deere B. One of its power trol valves does not fit tightly and is too easily removable. When the tractor is started, there is a noticeable drip from this valve. What is the basic way to install it correctly? Some close-ups of the valve are listed in the links below - I couldn't figure out how to directly post an image on the forum.
C:\Users\Peter\Pictures\2014-09-17\005.JPG
C:\Users\Peter\Pictures\2014-09-17\006.JPG

Gene Davis (Ga.) · Sep 17, 2014

Sounds like you need to replace the "O"rings inside
the ports.

Tripp · Sep 17, 2014

Send it to MACfabrications for a full rebuild and you'll be good for another 50 years. He'll strip it and rebuild it back to specs with testing.

http://www.macfabrications.com/Contact.html

Peter Markel · Sep 18, 2014

(quoted from post at 19:36:00 09/17/14) Sounds like you need to replace the "O"rings inside
the ports.

I have placed some o rings on the body of the valve, but that does not seem to be helping. Perhaps I have placed them in the wrong area - I'm no mechanic. What do you mean by the "ports"?

John Deere B power trol valve trouble

Peter Markel

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Gene Davis (Ga.)

Well-known Member

Tripp

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Peter Markel

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