Posted by Meangreen on October 31, 2013 at 06:03:57 from (98.188.136.175):
In Reply to: JD B, what should I do? posted by Bryce Frazier on October 30, 2013 at 19:59:53:
Okay here"s my story on the leaking manifold. I have a 1940 JD B and I went to replce the manifold about 3 years ago. We ended up draining and refilling the cooling system at least 8 time until we got it all figured out. Here"s what we found: 1. If the parts book lists copper washers then use them. Tried steel and leaked all over. They are avaliable at most auto parts stores. 2. Another JD guy said to just go buy the proper length bolts and some gasket maker, spead the gasket maker on the threads and torque and you will be fine. Didn"t work, leaked all over.
In the end I know of a company that produces after market manifold studs and nut to JD spec. Using them and the copper washers, where called for, it all sealed up and no problems since. What we found is today"s bolts are slightly thinner than the bolts/studs used back when your tractor was built. Also the nuts were about twice as big, so those used with the copper gaskets sealed where as todays nust being so small actually cupped the washer when it was torques allowing for leakage. I don"t know the exact manifold set up for that tractor, but I would guess it"s fairly similar.
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