Posted by RGMartin on September 24, 2012 at 05:04:54 from (188.8.131.52):
In Reply to: case 1294 posted by Steve Cundiff on September 23, 2012 at 16:52:51:
I have done a fair amount of these. It always involves using a lever of some sort to raise pump back up, as the donut is tough to compress.
Where did you get the gasket from? Maybe it is out of spec. Maybe someone has "fixed" a part of the tractor at some point in the last 30 years. Making it need a thicker than normal washer. Maybe just a CASE of tolerance stacking with a dubious quality, import, replacement, water pump????
Were the pockets where the washer sits rough cast or machined?
I will measure a new one I have here later when I get out to the shop.
First thing I would try it to drain the system, clean up your donut and install with a layer of silicone top and bottom. It shouldn't need it, but should fix the problem.
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