>Two main questions regarding my S2 Alpine-
>1. The earlier discussion on my second gear popping out resulted in no
>new second gear clusters available. Per my mechanic, and god used will
>be no better than what I have so therefore I might as well use this one.
>Everything else checked fine. He has had success installing 5 speed
>gearboxes from Nissan, etc into Sprites and asked if their had been
>success doing this in Alpines. He mentioned you can usually purchase a
>late model gearbox and have an adapter plate to fit the bellhousing. Is
>this possible for Alpines of the 1961 vintage? Seems their was some
>owners who had completed this modification. Please advise.
Popping out of any gear usually relates to bent shifter forks, or
defective detent springs/balls.
Never seen wear or condition issue of clusters have anything to do with
anything other than gear whine.
I'd be inclined to look deeper into the trans than to assume changing
out the cluster will fix any evil.
Otherwise the box will have to come back out later.
>2. I have an early style clutch setup. Can the later series diaphragm
>clutch fit into my series with no mods?, and between the two, which is
>the better unit? He drove my car and in his opinion, the diaphragm has a
>better feel and engagement. Of course, he is comparing this to other
>British cars that probably had that setup. Any feedback would be
>appreciated on either topic. Thanks Brent
There are pros and cons for each type.
The old coil spring type clutches as fitted to SII and earlier SIII cars
have more clamping force, and can accomodate a larger (8.5 inch) disc.
This means more torque can be translated to the transmision, and a snappier
clutch engagment during a dump.
The coil spring covers have a "linear" pedal force, whereas the diaphragm
clutches have more force earlier on in the stroke, but the force tapers off
later in the stroke, which creates sort of an assist mechanism as the spring
goes past center.
The diaphragm clutches are available in 7.5 and 8 inch apps depending on
the cover used.
There is a difference between the 7.5 inch clutch used on the SV and all
other clutch bolt patterns, so you would need the propper flywheel if you
went this route.
Nearly every one would prefer the feel of the diaphragm engagement,
while the prospect of a stringer clutch would lead some to stray.
Personally I have had troubles with slippage on SV clutches, and not
just coping with clutch dumps. I'm talking basic slippage at 4000 RPM
at wide open throttle.
The 7.5 inch clutch seems only able to cope with a stock 1725 engine.
The question might become, do you want smooth, or a slipless clutch?
Jarrid Gross
|