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Farmall & IHC Tractors Discussion Board |
Re: Crank Seal
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Posted by Owen Aaland on March 26, 2007 at 12:53:30 from (65.165.246.14):
In Reply to: Crank Seal posted by Tom Windsor on March 26, 2007 at 12:16:22:
The original seal in your H was a combination of felt and a leather seal. It is also one of very few applications where the lip of the leather seal faced forward, away from the oil side. The crankcase breather system was designed to create a slight vacuum in the engine crankcase. The lip was installed forwards to prevent dust from being pulled in past the seal. I do not think that you are going to find a replacement like the original. My guess is that the felt ring you have is for the water pump. Was it a little larger that the the seal OD? The new "rubber" style seal will seal much better than the orginal one. You can install it with the lip facing the oil and not have any problems. Instead of bottoming the seal in the housing bore I would leave it forward as far as posible and still have it seal on a good surface of the crank pulley. By leaving it forward you will protect more of the pulley sealing surface from rust. If the seal should need to be replaced again in the future it can be installed more toward the back and ride on a surface that is not rusted.
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