[DML] Transmission problems - an update

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

Hi All

Going back a week or so to the turbocharger/transmission discussion, I 
got a 'box back today from our rebuilders. This particular box had 
problems with selecting 2nd and popping out of 5th. I learnt a couple of 
things of interest and thought I'd pass them on. I'd be the first to 
admit that my experience with gearboxes is limited - we just off-board 
to a local specialist who's very good.

The 5th gear fork 103232 is available from Renault for about £105 or 
$186 by today's exchange rate. It'd come special order from France.

I also got back a gearbox I'd had done as a "special" for my own 
DeLorean. Some time ago, I managed to find an original 369-01 Renault 30 
gearbox on ebay UK and bought it. It has the higher 3.88:1 final drive 
and the diff the wrong way round but is otherwise the same as a 
DeLorean's in all major respects. I've had the diff reversed, the early 
10-spline input replaced for a 21-spline one and the input coupler 
replaced for one of Toby's wings-B-strong* ones. Interestingly, 
discovered that the problem with the roll pin on second on the D box is 
a) unique to second and b) not a problem on my early box.

First-to-second is probably the most violent gearchange and it's 
commonplace now to spring-load the selector fork on 2nd in a manual 
tranny. This is how it's done on the DeLorean and it's the roll pin 
retaining that spring that breaks off. My early 369-01 has a solid 
selector. This will make 2nd a bit more "notchy" but I suspect the 
reason for the spring is to protect the selector fork as much as it is 
to make the change smooth. Shame they cocked up with the roll pin! I'll 
let you know how it drives when it's in my car.

* that's a joke, BTW

Best Wishes

Martin
DMC Ltd
www.delorean.co.uk







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