Re: Rebuilding a shortblock

[Chris Picot <picot@cpcug.org>]

Assuming you don't want to have it align bored or bored for more
displacement, at least mike or have the cylinders miked to make sure they
are still more or less round and that you do not need oversized pistons.
No use putting new round rings into an old square cylinder.  Lightly
Breaking the glaze band leaving a nice cross hatch pattern will help new
rings seat.  Just a few passes with the glaze breaker.  Remember to use
some honing lube.  Also check for scoring and ridges.

(In other applications you can get away with using *slightly* oversized
rings with the original pistons [now "undersized"] but I'm not sure if you
can get away with that with a VW engine.  I don't know about current
practice, but racing engines used to have substantial gaps between pistons
and cylinder walls for reduced friction.  They had a lot of "piston slap"
until the engine was warmed up. This is not so good for street engines
though.)

Good luck,

Chris

At 01:39 PM 3/13/97 +0500, Chris Taylor wrote:
>Since my G60 has most likely been hammered, I'd like to give it a lil' tune
>up before i install it.  i.e. a complete gasket/seal set, and rebuilding the
>shortblock.  
>
>For those of you who dont' know, the G60 is a beefed up 1.8L 8v.
>
>Re: the shortblock---I guess I need piston rings, rod bushings, and crank
>bearings?  Do I need any experience/tools to do this?  Can I really screw
>this up?  I've never peeked into an engine.  Is a "hone on the electric
>drill, go up and down the cylinders a few times" an okay idea?  
>
>Anyone have any tips/do's/don'ts?  
>
>I've heard that it's not bad for a DIY project and I don't feel like
>spending any cash that I don't have to.
>
>Chris Taylor
>'87 Scirocco G60-to-be
>
>Virginia Polytechnic Institute
>     and State University
>   College of Engineering
>chtaylo4@vt.edu // aol.com
>
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