[TR] Fw: A type overdrives and MT90

pethier at comcast.net pethier at comcast.net
Thu Aug 5 07:30:05 MDT 2010


How nicely does MT90 play with the synchros and diffent metals in the transmission?

Phil Ethier West Side Saint Paul Minnesota USA
1973 Triumph Stag LE22439UB "uncle jack"
1979 Caterham Super Seven SOLD
2004 Suburban 8.1
2005 Lotus Elise
2007 Saturn Ion 3 2.4
pethier [at] comcast [dot] net
http://www.flickr.com/photos/pethier
http://www.triumphtransamerica.org
http://www.mnautox.com


----- Original Message -----

> From: "Ed Woods" <fogbro1 at comcast.net>
> To: triumphs at autox.team.net
> Sent: Thursday, August 5, 2010 8:03:35 AM
> Subject: [TR] Fw: A type overdrives and MT90
> 
> List,
> 
> After 40 years and countless 'A' type overdrives, I recently had two
> that were
> not releasing from overdrive. I spent a couple of hours with the owner
> of one
> of them and his TR4 this a.m. and determined that the o/d clutch was
> sticking.
> A light tap with a hammer would release it each and every time it hung
> up. The
> fluid in the unit was 30 wt, non-detergent from a local FLAPS. Having
> read of
> a similar experience on the Healey list, and not wanting to give up my
> lead
> hammer, I suggested that we try Redline MT90 as the Healey owner had
> done to
> solve the problem. Here's the TR4 owner's subsequent email:
> 
> "I went straight to Foreign auto and picked up 4 containers of it.
> Drained and
> refilled with the MT-90. I just got back from the test drive before
> the
> downpour with GREAT results! No more issue with the OD. I'll bring the
> 2
> containers to you ($11 each!) and the socket. I'll return tommorrow
> morning
> 10-11 am if that works with you? I love the transmission, remember
> this is the
> first time I drove a type A. Wonderful. "
> 
> Now I'm not trying to start a long winded discussion here, and I'm
> not
> suggesting that we all run out and buy Redline MT90. I'm just
> suggesting that,
> in the event you have a newly rebuilt 'A' type that sticks in
> overdrive, you
> might consider changing the fluid.
> 
> I'll report on how this "fix" works on the second transmission when
> that owner
> makes the change.
> 
> And, by the way, this overdrive is developing 430 psi.
> 
> Ed Woods
> 
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