Did you replace pistons on a 3b? (1 Viewer)

Joined
Jan 11, 2008
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Seattle
I like to know if you did this to your 3b. Did you use a ridge reamer and hone? how many miles on 3b? mine has a slight oil smoking issue and the compression is low on one cylinder.

I have done lots of engine and short/long block changes in the past so know engine repair. BTW precups need to be chained or replaced? original engine from 1984 with 450k on odo.
 

FJBen

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Joined
Apr 1, 2004
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5,349
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Northern Colorado
Personally, if you are going this far, I would just replace everything and do a full rebuild with machine work. Get everything into spec.

you should have sleeves on that 3b.

I rebuilt a 13bt a couple years ago and went new sleeves, pistons, bearings and polished/grind crank and cam, shaved block, set counterbore and did it all.
It’s not that much more work to pull it all out and get it all sorted.
 

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