[AT] Rear main seals

[Spencer Yost]

The pacer has developed a fairly significant rear main seal leak after 20+ years.  It’s gotten to the I have to have pizza boxes underneath it.  My luck with the old tar rope rear main seals has been spotty at best so I wanted to outline my procedures and see what I might be doing wrong.

 I first gently use a wooden dowel to create a bit of an oblong shape and then snug the pair into the block and  the rear main seal carrier.  Then I gently fray the ends of both ropes.  Nothing serious, just open them up a bit This I was taught to ensure the intersections interleave and there’s no significant leaks at the two intersections.  

Then I attach the rear main carrier and inspect closely, making sure the ends interlace nicely and there are no gaps.

In just about every case I can expect leaks to begin with in 10 years and replacement time to show up within 20.

I must be doing something wrong.  What’s everybody else’s technique for this?

PS:  If the tractor is a show queen I typically don’t have problems. But if you remember of the pacer has been on duty its entire life since it’s restoration discing fields, helping with hay, etc.

Spencer



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