Date:         Tue, 25 Aug 1998 20:32:03 -0500
Reply-To:     Ken Korn <kkorn@JUMP.NET>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         Ken Korn <kkorn@JUMP.NET>
Subject:      Re: why does #3 pist/cyl always go bad first?
Comments: To: John Anderson <janderson@IOLINC.NET>,
          "Vanagon@VANAGON.COM" <Vanagon@VANAGON.COM>
Content-Type: text/plain; charset="us-ascii"

On the '82 Westy I purchased last month, the compression on the engine (a GEX
with about 60k miles on it) read:
#1      105
#2      135
#3      100
#4      140

This seems to fit your pattern.

Ken
kkorn@jump.net
Austin, TX

On Tuesday, August 25, 1998 12:29 PM, John Anderson
[SMTP:janderson@IOLINC.NET] wrote:
> >The type IV engine moved the oil cooler around so it was in front of #4
> >and
> this
> >should have worked to even out the cooling but then they loaded up the 3-4
> side
> >of the engine with stuff like EGR, cat & funny heaters. This did not help
> #3 at
> >all. The fact that all Fuel Injected type IV engines have asymetrical
> (un-equal
> >path lengths from exhaust valves to tail pipe) exhaust systems can not
> >help
> >either.
>
>
> But in actuality it did at least seem to make 1 as suceptible as 3 to
> problems.  FWIW every higher (125k+) mile T4 I've seen is down about evenly
> compression wise on 1 and 3 say 1 and 3 at about 85-95 psi, 2 and 4 around
> 110-120, but the wierd thing, most that I have later torn down (admittedly
> only about 5 motors) have suffered a receded INTAKE not exhaust and usually
> on 1 not 3.  Still I agree entirely the T4 and T3 for that matter oil
> cooler
> relocations don't seem apt to help that much as they feature restricted
> cooling to both cylinders on the 3,4 side but do not hit 3 alone.  In a
> waterboxer, should be no favoritism, unless by the exhaust path lengths.
>
> John
> janderson@iolinc.net