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Can you replace a scored pin w/o replacing rod?


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tommichael
New User

Dec 17, 2011, 6:13 PM

Post #1 of 3 (1470 views)
Can you replace a scored pin w/o replacing rod? Sign In

2010 Honda Elito 110 NHX scooter. 110cc 9 hp. 3000 miles.

This is a Honda 110 cc scooter run with low oil. The piston pin and the upper rod bearing have scored each other - the pin considerably, the rod end slightly.

My question is: Will it work well to replace just the pin and to smooth down the high points (ridges) on rod bearing if not enough to increase the pin to rod clearance?

I realize the load bearing surface will be reduced by the grooves in the rod end, but these seem slight.

I am only considering this because otherwise, it is 3x the tear down effort to open the case, and the parts are expensive, as I can't buy just the rod, have to buy the entire crankshaft - it is all one assembly.




Mr.scotty
Enthusiast
Mr.scotty profile image

Dec 17, 2011, 11:09 PM

Post #2 of 3 (1431 views)
Re: Can you replace a scored pin w/o replacing rod? Sign In

Yes you should replace the rod too but, if it's not real bad you might be ok.
No telling how long it will last though if you don't replace the rod.
It's all up to you at this point.
--------------------------------------------------------

Your only as good as your tools!


zmame
Veteran / Moderator
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Dec 22, 2011, 3:11 PM

Post #3 of 3 (1324 views)
Re: Can you replace a scored pin w/o replacing rod? Sign In

Depending what type of bearing used. I doubt it would work at all and if it did wouldn't last a trip. That's my 2 cents worth.






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