Re: '77 Alfetta 2L Rebuild - Update & Thanks

[TJCallahan@domain.elided]

In a message dated 2/7/03 4:21:34 AM Pacific Standard Time, bshorey@domain.elided 
writes:

> <snip>
>  > same with the rods (total and big end). The Block was align bored true
>  and 
>  > new Clevite bearings round out the picture. Of course, I'm having a
>  new oil 
>  > pump from Jon Norman put in, just because.
>  <snip>
>  
>  Was there a reason for line boring the block?
>  
>  I'm under the impression that line boring the block will result in slop
>  in the lower timing chain.
>  
>  bs


Yes, there was a reason. The main line was S-shaped and the bearings that 
came out were showing very uneven wear. The worst bearing had heavy wear on 
one side of the oil journal and no wear on the other - that's bad news. We 
considered the effects of the align bore vs. lower timing chain and decided 
it was an acceptable trade. The very minimum of material was removed, only 
enough to bring it back true. 

The important thing is that the engine, which was really sloppy for only 70k 
miles, will be tight, true, and balanced.


Tom
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