Big saloon/TR gearboxes and thanks for the info Randall.
Are the same applicable to the smaller Spitfire/Herald/GT6/Vitesse gearboxes
?
Also, while I'm thinking relatively straight, can the 1600 Vitesse 6 (Sports
6) non-o/d mainshaft be replaced with the o/d mainshaft and d-type overdrive
from a Spitfire Mk1 -Mk3 o/d gearbox ? FWIW part numbers for Vitesse 1600
and early Spitfire overdrive mainshafts appear to be the same (o/d mainshaft
part number for both models = 208142 and d-type o/d unit part number for
both models = 306553).
The Vitesse 1600 ( Sports 6 in USA) gear ratios seem to be much closer
together than the Spitfire (Mk1 - Mk3) gearbox gear ratios. It would seem
beneficial to use these ratios with the Spitfire four cylinder engines. Am I
correct?
Might be possible to use the Vitesse 1600 gearbox in the Spitfire4 (aka
Mk1). I know the bellhousing must be changed to the Spitfire type. Anything
else ? Pro's and cons ?
Not sure how the Vitesse ratios will affect power, speed and fuel
consumption of the early Spitfire. Anyone any ideas?
Chris de Wet .
" South African home for unwanted and neglected Triumph cars and parts "
PO Box 472 , Ifafi , 0260 , South Africa .
'56 TR 3
'62 Herald 1200 Coupe
'64 Spitfire 4 (Mk1)
'65 Spitfire 4 (Mk2)
'67 GT6 (Mk1)
? Vitesse 1600 Convertible (HB 8346 CV) ....... possibly soon.
" Triumphs are meant to be driven .... oil paintings are meant to be shown "
-----Original Message-----
From: Randall Young [mailto:Ryoung@navcomtech.com]
Sent: Monday, 27 October, 2003 05:33
To: triumphs@autox.team.net
Subject: RE: Looking for A-Type OD and Transmission
I've lost track of which transmission we're talking about ... for the 'big'
gearbox used on TR2-6, 2000, 2.5, Stag, etc., the pump drive cam is a
separate part that engages the splines on the shaft (has to be, otherwise
you couldn't remove the OD from the shaft).And it is possible to cut down a
non-OD mainshaft into an OD version,although it is a fairly complicated and
exacting procedure (you start by
annealing the shaft, then it has to be straightened, drilled,
machined,polished, etc, then hardened again). ORS in the UK will do it for
you, but it's close to the cost of a new shaft.
Randall
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