DeTomaso Mailing List: August 97, Message #23
     



From: "Paul Timko" <TheDrol@msn.com>

Subject: Re: Major Mistake :(

Date: Fri, 1 Aug 97 16:12:08 UT



Jack,

  It is definitely the wrist pins.  I know this because after the engine 

wouldn't turn more than 2 degrees EITHER way.  I pulled the engine out.  Tore 

it down, slowly checking for a cam problem vs. a bottom end problem.  Then 

loosening each main bearing end cap and checking the rotation.  Then removing 

each rod end cap and checking.  At this point it still wouldn't turn.  Each 

piston moved a little bit.  So I pulled the pistons out one by one.  A few 

didn't move easily in the bore.  But as I pulled the first one out, the piston 

didn't move freely on the wrist pin.  It took a significant amount of effort.  

I eventually found 3 pistons that have a seized wrist pin. 



 So in light of this information, my question still stands, oversize wrist 

pins, which might be difficult down the line (at the next rebuild 10 year from 

now) or new pistons? I am leaning toward new forged pistons. 



Thanks,

Paul #9270



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