I think that gets back to what my machinist told me about Mobil 1 not
having the lubricants for the cam staying in suspension. Too much cam
wear. Joe(B)
----- Original Message -----
From: "Greg Solow" <gregmogdoc@surfnetusa.com>
To: "Jack W. Drews" <vinttr4@geneseo.net>; <fot@autox.team.net>
Sent: Thursday, May 15, 2003 11:54 PM
Subject: Re: Oil - what kind?
> Yes to a bad experience.
> Two years ago I stopped using Kendall GT-1 in my TR-4 race
engine and
> tried Mobil 1. I ran it for 3 race weekend and then pulled the pan
and
> timing cover to install a new cam. I found that the bearings looked
great,
> but everywhere that that the lubrication was by "splash" and the
metal
> contact was iron to iron or iron to steel
> (like the cam and lifters or the timing chain tensioner to the chain
or the
> ends of the rocker arms to the valve stem tips) there was excessive
wear.
> This wear was WAY MORE THAN NORMAL. I have stopped using Mobil 1 and
am back
> to Kendall GT-1.
> I the early 70s we were racing a Lotus Super 7 in SCCA San
Fransisco
> Regional and National events. We were given Castrol for free and
used GTX,
> GTR, and Castrol R. We were having a problem regularly welding the
rocker
> adjusting screw into the tops of the pushrods. This was not
intentional! We
> later found the cause was a mechanical mismatch of components. But
without
> changing any parts, changing from the Castrol to Kendall GT-1
stopped the
> part failures! That experience made me a believer.
>
> Regards,
>
> Greg Solow
> ----- Original Message -----
> From: "Jack W. Drews" <vinttr4@geneseo.net>
> To: <fot@autox.team.net>
> Sent: Wednesday, May 14, 2003 4:38 PM
> Subject: Oil - what kind?
>
>
> > About twice a year folks on the lists discuss oils -- and like
belly
> > buttons and opinions, everybody has one. Today I found myself
standing in
> > the oil department trying to decide which magic elixir to use when
I take
> > the break-in oil out of my engine. After all these years, I don't
REALLY
> > know which is best.
> >
> > Should I go with all synthetic, synthetic blend, or just dino
juice? And
> > should I go with really light stuff, like Mobil 1 0-30 weight to
hopefully
> > make more hp, or with 40-50 wt to make sure everything is
protected?
> > Furthermore, on what basis could I make a halfway intelligent
decision?
> > Everybody seems to have success stories.
> >
> > Sooo....here's a survey of a different sort: Has anybody had a
BAD
> > experience with an engine that they could directly attribute to
the kind
> of
> > oil they were using?
> >
> > uncle jack
|