Anything slippery is fine

Posted by jdemaris on November 30, 2005 at 06:35:45 from (66.218.11.146):

In Reply to: Which liquid soap for installing wet sleeves posted by Willy p on November 29, 2005 at 18:45:42:

The reason why Deere and other companies call for soap is for one reason. The sleeve sealing rings - (with Deere it's the red ring - not the black) - are designed to swell once petroleum comes in contact with them. So, they want you to use something that is slippery but inert so the o-ring doesn't start to swell before the sleeve is in place.
Engine oil works fine if you're fast. But, if you screw up and take too long - the o-ring swells and you'll damage it.
Best thing is - first make sure the block is cleaned well enough so the sleeve pushes or falls easily into place (before the o-rings are installed). Once you know the sleeve goes in easy, then install the o-rings and soap everything up (any non-petroleum base soap is fine). Then, you will now that the only opposition you feel when pushing in the sleeve is the o-rings themselves. This way, is something is not going right - you know it's an o-ring problem.

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