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Subject:Re: 2.1: Check rods or just top end?
From:tabe johnson
Date:Tue, 25 Oct 2005 14:41:33 -0400

Hi Larry,

Thank you for writing.  Just doing the heads is certainly
attractive because of the time savings.

The cylinders are already disturbed.  They came out
of the case as I was pulling the heads.  They're still
on the pistons though.

I didn't really want to get into this, but... I did have
an oil pressure gauge attached to that engine which seemed
to indicate everything was fine.  Having now driven with a
different engine I have become aware of how slowly the oil
pressure drops with time as the oil heats.  I am
not certain that I allowed the old engine to heat enough
before recording oil pressures.

To summarize:  I never got any indication my oil pressure was
a problem.  My gauge numbers were good but I'm not sure I
trust them.

tabe

--- Larry Alofs <lalofs@rcn.com> wrote:

> Personally, I'd just do the head(s) and try not to disturb the cylinders
> at all.
>   Might be worth hooking up an actual oil pressure gauge before you
> start, to see if it tells you anything alarming or reassuring.
> You are using Mobil 1, right?
>
> Larry A.
>
>
> tabe johnson wrote:
>
> >My old 2.1 engine sprung a leak through the head gasket at ~200,000km.
> >Because of the mileage, I'm a bit concerned about the rod bearings.  I have
> >no other reason to worry about the oil pressure.
> >
> >So - How doable is it to get at the rod bearings, but not break the case?  I
> >don't have any special VW tools.  If I get the rods off, how do I inspect
> >them?  Or do I just ship everything to Bob Donalds & put in whatever he
> >sends me back?
> >
> >I have a vague recollection of someone compressing piston rings using...
> >zap straps?  or something equally clever.  If I pull the cylinders, what
> >is the accepted way of getting the pistons back in them?
> >
> >Or should I just leave well enough alone, redo the heads, and get on
> >with life?
> >
> >
> >tabe johnson/87 westy
> >
> >
> >
>
>
>