From: "Mike Kitchener" <mikek@wanadoo.fr>
To: triumphs@autox.team.net
Date sent: Fri, 2 Mar 2001 11:28:59 +0100
Subject: Logic overdrive device
Send reply to: "Mike Kitchener" <mikek@wanadoo.fr>
Listers
The advert states :
"Logic overdrive switching device . Allows fast overdrive operation .
Overdrive cannot be left in inadvertently , reducing strain on the
overdrive . When changing gear with the overdrive left engaged ,
overdrive drops out automatically. Fits all electrically operated
overdrives ."
The main advantage that I can see is if you need to down-change
quickly when running in overdrive then the overdrive will cut out and
stay out .
Also it would be possible to use all seven gears easily from a
standing start to overdrive top.....could be fun but superfluous ?
All comments welcome .
TIA
Mike Kitchener
60 TR3A TS 75178
Mike
A friend of mine has this switching device on his TR4.As far as I
know it has been developped by Neil Revington and it's available
from Revingtontr. under RTR1001.
I have no experience with overdrives yet ( I just fitted a J type on
my 6 and only drove around 300 miles) but I heard from people
stopping with 2nd gear engaged in overdrive and than reversing,not
good for an overdrive.For that reason I did not mount the 2nd gear
switch .Understanding that the overdrive pump is operated by the
propshaft I don't see how it could disengage with the propshaft not
rotating,but can understand that it will disengage as soon as you
back up and the pump is resuming pressure. Is that soon enough
to avoid damage. Big question.
Jean
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