Volvo RWD 120-130 Forum

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B18 rebuilding update and questions 120-130

uid 37336's pic
posted by  B20Paul. on  Sun Nov 18 14:53 CST 2012
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last visit: Mon Oct 20 10:54 CST 2014
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Why B18? Are you fanatical about it all being all original?

What is your budget?

*Took piston #4 out. the top ring was broken into half (compression was tested 135). I measured the cylinder all around and up/down. The off-roundness seem not to be so bad, ranging from .003 to .005.

That's done at least 150000 miles to get that much wear in my experience. You are in need of a full rebuid.

QUESTION: What is the maximum clearance tolerance between the piston and wall if I am to just do cylinder honing and snapping in new rings around the piston? The piston grooves looked pretty good.

It's the TOP piston ring groove side clearence that needs to be measured, measuring the bore for your purpose is pointless. Download some instructions from a piston ring manufacturer & read it.
--
Three 164's, Two 144's, One 142 & a partridge in a pear tree.






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New B18 rebuilding update and questions [120-130]
posted by  DBS  on Fri Nov 16 20:37 CST 2012 >


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