My A-type works in 2d with no problem. I think the only issue is the switch
in the top cover to allow it actuate. There are plugs to drill out to put a
switch in. Now on the other hand I really haven't found it real useful in
2d.
This A-type is in a 6.
Jim Altman jaltman@altlaw.com Illigitimi non Carborundum
http://www.altlaw.com/metro/jaltman.html 69-TR6 80-TR8 W4UCK
-----Original Message-----
From: owner-triumphs@autox.team.net
[mailto:owner-triumphs@autox.team.net]On Behalf Of Davies
William-qswi646
Sent: Monday, December 13, 1999 8:56 AM
To: 'List, Triumph'
Subject: Overdrive on 2nd Gear
Listers,
I am currently involved in building a lightweight overdrive gearbox
based on the early Herald/Standard 10 all-alloy casing. The 948 gearset has
a wide gap between 2nd and 3rd gear, but in other respects is ideal,
allowing us to fit a higher ratio final drive without losing flexibility
lower down. Is there any way we can use the overdrive (D-type) on 2nd gear?
I'm aware that Overdrive pressure is dependant upon the gear speed, but I
remember some of the earlier TR's had A-type overdrives which operated on
2nd. I also knew a guy years back who had a Vitesse 6 with the switching
modified to work on 2nd, but I don't know how succesful it was. Our other
concern is whether the overdrive would handle the torque produced in 2nd
gear.
The engine used is an SAH tuned 1147cc unit with a single weber
(type?). The vehicle is a 1964 Bond Equipe 2+2, weighing around 13cwt.
Any advice will be appreciated,
Cheers,
Bill.
---------------------------------------------------------
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^================^
/ \ William Davies
/ \ Total Triumph Enthusiast
__ __________________ __
/ \ ______ ______ / \ 1959 Herald 948 Coupi Y128
\__/ \ || / \__/ 1959 Herald 948 Coupi
| A \____||____/ A | 1959 Herald 948 Saloon
| = H H = | 1960 Herald 948 Saloon Export
=====U==============U===== 1961 Herald 'S'
\________________________/ 1964 Herald 1200 Saloon
| | | | 1970 Spitfire MkIII
|_| |_| 1973 Spitfire MkIV
1959 Standard Atlas Pickup
|