Has anyone on the list purchased overdrives from Quantum Mechanics in
Monroe, CT? I met them at the Carlisle Import Car Show. They had 4 or 5
rebuilt transmissions and overdrives for British cars. I purchased a new
Lucas overdrive relay from them.
Tim
----- Original Message -----
From: "John Slade" <edalsj@igs.net>
To: "List, Alpine" <alpines@autox.team.net>
Sent: Thursday, June 13, 2002 2:22 PM
Subject: Re: Transmission oil - overdrive
> I went through this last year, while fitting a Laycock overdrive to my
> non-overdrive S IV, and to a Bristol. It turns out that the gearbox
> likes hypoid (gear) oil, while the overdrive likes ATF. If you have a
> car in which the oil is separate for the gearbox and the overdrive, then
> you use these two lubricants. If, on the other hand, you have a set-up
> like that in the Alpine, where a common fluid services both gearbox and
> overdrive, then a compromise must be reached. The manufacturers,
> certainly in the fifties and the early sixties, decided that
> non-detergent single weight engine oil was the best compromise, and made
> that recommendation. I have stuck to that recommendation over the years,
> and have never had on overdrive problem.
>
> Laycock is no longer in business. Their repair and overhaul business was
> taken over by a company called Overdrive Repair Services in Sheffield,
> UK, which I think is owned by former employees. They have a web site
> (ORS) and an e-mail address, neither of whose URLs I can lay my hands on
> right now, but I have found them to be difficult to communicate with.
>
> For what it's worth
>
> John Slade
> Manotick, ON
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