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Paul from MI
01-01-2002 17:10:09
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Re: Coolant leak in Model B Cylinder in reply to Prune Picker, 12-31-2001 18:10:13
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Prune Picker,
I had the same problem on my 1944 B, so I'll lead you through the possibilities. First, has the tractor ever been allowed to freeze. This will be evident by welds on the head, block, water outlet, etc. If so you may find a leak anywhere. Mine leaked water into the oil through a pushrod cored hole in the block. More likely if you are getting water into the cylinder, but not into the oil you have a head crack. I have had my A and D crack around a valve. In the A I had the head repaired almost twenty years ago with no more problems. The D was cracked into the intake passage & under valve seat. The repair on it held for a few years, but eventually I had to replace the head. Bear in mind these are working tractors, not just for show so they get hot when doing field work. You may only have a small head gasket leak, in which case replacing the gasket is an easy job. While the head is off I would have it checked at an automotive machine shop. If you have only a small leak, and it sounds like you do, a good block sealer may hold it for a long time. If you do find a crack in the head, it may be repaired easily. No matter what, I would check the oil very carefully to be sure no coolant is getting into it. If you only have a small leak a good block sealer may fix it for a long time, but in the end you'll probably have to take it apart and take care of the problem. Fortunately, B parts aren't too hard to find or too expensive. LOL Paul
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