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  1. #1
    dockwalker's Avatar
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    Leaky rear seal fix

    First, I should say this is a new post about a previously posted problem.I have a 2000 XLT 1200 that has been in pieces for over a year now.Had it together just before Hurricane Irene hit and flooded it again.Screwed up and reversed a base gasket and had to start over again.Now I've pressure tested this engine and have a slight rear seal leak.It will hold 6lbs for 6 minutes and then in 15minutes leaks to 5lbs and holds for several hours.Overnite down to 0.I know now leak is due to minor rust pitting on crank.My question is, (1)Can I run as is and keep an eye on it(already premix)(2)Should I try to hone out the pitting and reseal(3)Adjust rear carb for getting more air? (4) Send back to Crankworks for the 3rdtime(not their fault) and ride this thing in July or Aug.Thanks for all the help from YOU great guys.I really miss Bill, he was the best


  2. #2
    Yamaha artisan Cutlass's Avatar
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    That small leak rate won't hurt it. You are good as is.
    1 psi per minute is the acceptable limit. You're at .06 psi per minute. Thats a TIGHT engine.

  3. #3
    dockwalker's Avatar
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    Thanks for the vote of confidence.Almost pulled it down again.Was planning on removing rear seals,setting back in bearing journals,tightening case(no locktite) and honing end of crankshaft,reassembling with seals.Would that have been a bad thing? Was planning on using 1500 grit paper and turning crank with impact wrench.Was I getting ready to f**k up?

  4. #4
    Yamaha artisan Cutlass's Avatar
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    yes

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