Well Joe, the good news is that your camber compensator got a good workout
this afternoon, even with stock bushings and shocks. I threw my car around my
favorite curvy two-lane and it handled better than expected, despite a small
amount of positive camber still in the front wheels, which I could really feel
and will correct when more shims arrive tomorrow. The bad news is that on the
straightaways, the O/D was VERY slow to engage, and it slips even worse than
it did before. I noticed on the back of the Valvoline racing 50w bottle that
it contains friction modifiers which I know are a no-no with O/Ds, but others
have reported excellent results using this same oil with their units, so I've
clearly got a more serious problem than just the viscosity of the oil.
Jeff
----- Original Message -----
From: Joe Curry
To: Jeff McNeal
Cc: spitfires@autox.team.net
Sent: Thursday, April 03, 2003 2:28 PM
Subject: Re: Funky D-type O/D, P. II
Jeff McNeal wrote:
>
> Thanks Joe, I'll take your word for it and I'm glad to hear that the oil I
put
> in there contains no sulfer. Better safe than sorry. But how does one
tell
> of oil contains sulfer or other friction reducing elements that might be
> inadviseable for use with O/D? It would sure be nice if you or someone
who
> knows more about this subject compiled a list of oils that are best for
our
> vintage cars.
>
> Jeff
>
The best way to know if the oil has sulfur in it is to read the label.
I think that all GL-5 types of gear oil has Alkyl Sulfide and I don't
think that GL-4 oils do. Synthetic oils will be too slick for the
synchros to grab unless they contain friction molifiers as does the
Redline oil I mentioned. Friction is required to make the synchros work
properly so eliminating it entirely is not a good thing in our
particular cars.
Cheers,
Joe
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