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Re: Crankshaft balancing?

To: triumphs@Autox.Team.Net
Subject: Re: Crankshaft balancing?
From: DUHART JOHN <duhart@symbol.com>
Date: Fri, 28 Feb 97 15:55:36 -0500
Organization: Symbol Technologies
>    <    snip   >
>> Also, how do I tell if I need to replace the piston rings?  I was 
>> getting a lot of oil build up on the #1 sparkplug, and i assumed the 
>> rings were bad.  Dummy that I am I never did a compression test before 
I 
>> tore-down the engine.  What should I look for the make a judgement on 
the 
>> rings?
>***************************************
>If you removed the pistons from their bores, you WILL need new rings.  
You
>can never get them back into the original positions that they wore into, 
and
>will never really seal properly.  The real question now is do you need a
>rebore to oversize.  That can only be determined by careful measurement 
of
>the piston and bore to determine how mush wear you have.  If it's beyond
>specification for taper and clearance then you must rebore oversize or 
you
>will have the same problem in just a short while.
>
>Barry Schwartz

Hello Barry,

        Good point.  How do I measure this?  Is this info in my Bently manual?


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