Date: Sat, 17 Aug 2002 23:09:42 +0100
Reply-To: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Subject: Re: Compression Question
Content-Type: text/plain; charset="iso-8859-1"
Presumably these weirdly named products 'Marvel Mystery Oil' is what int he
UK we would call a Monomolecular Oil additive (e.g. F-1), or even more
generically, a surface modifier lubricant. If so, these lubricant additives,
drastically increasing ultimate dry load bearing capacity and with side
effects as described, freeing up carbon deposits (not always a good thing
for v. high mileage engines) and particularly freeing up sticky ring
grooves - could in this instance prove the case. After a few thousand miles
and a subsequent oil change (don't leave it too long), retaking the
pressures should prove the point: if there is no substantial change in the
discrepancy (though undoubtedly there will be an overall improvement) then
its likely your valves/seats or head gasket are the cause.
The side to side difference might have been caused by local overheating on
one side and not the other.
If the monomolecular surface modifier additive works, then maybe we might
even hear it being called the 'Magical Mystery Toil', with due deference to
the Beatles.
So I'm backing Stan the Man!
Clive Alive
'88 Syncro Transporter
----- Original Message -----
From: "Stan Wilder" <wilden1@JUNO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, August 17, 2002 9:01 PM
Subject: Re: Compression Question
> You have a lot of miles left in that engine if you don't demand perfect
> performance.
> Try running some marvel mystery oil (about a quart) mixed with your
> regular oil in the crankcase for about 1000 miles. (don't overfill the
> crank case) It will free up sticky rings, remove sludge from your engine,
> clean your lifters. Also run about 8 oz in every tank of gas for that
> 1000 miles, it will de carbonize the heads, valves, stems, guides.
> Then recheck your compression.
> You should get more balanced readings unless you have a head gasket leak.
> This is a $8.00 fix so give it a try.
>
> Stan Wilder
> 83 Air Cooled Westfalia
>
> On Sat, 17 Aug 2002 12:01:08 -0700 Larry Chase <lchase@ATTGLOBAL.NET>
> writes:
> > Folks,
> >
> > Not being a gear head ...... would I be safe in assuming that a 2.1
> > WBX
> > Engine with the following compression readings is in need of a
> > rebuild?
> >
> > 1=130, 2=125, 3=160 and 4=165
> >
> > Larry Chase
> > 85 Westy "RoadHaus"
> > Mesa, AZ
> >
>
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