[TR] A-type OD questions

[Randy and Valerie DeRuiter]

Tony-

The 3rd gear issue should be pretty easy since 4th gear works and it is the same switch for both of them.  Sounds like the isolation switch just needs to be threaded in slightly more so that the switch closes when in 3rd.  Shouldn't take much.

The 2nd gear could be the same issue IF you have an isolation switch installed.. if the switch is missing it means the top cover has to come off and disassembled to be able to drill and tap for a switch.  May not be worth it.

Possibly the wiring could be wrong for the 2nd gear setup though I can envision what that would take.  Probably worth taking the car up on the lift to see if you can figure it out from below but most times the gearbox cover will come off for this kind of work.

Cheers
Randy
________________________________
From: Triumphs <triumphs-bounces at autox.team.net> on behalf of Anthony Rhodes <spamiam at comcast.net>
Sent: Monday, September 4, 2023 11:08 AM
To: Triumphs List <triumphs at autox.team.net>
Subject: [TR] A-type OD questions

I have had my TR4A transmission converted to an A-type OD by  noted specialist, and the removal/installation service was done by a reputable shop.

I just got it back and the OD seems to work perfectly in 4th gear.

In Third, It will work for a short time, then goes out of OD.  It appears that it is related to the isolator switch.  If I gently push the shifter forward, it stays in OD just fine.  If I pull it back slightly (still in 3rd), it does out of OD, and when I push it slightly forward again, OD re-engages.

In second gear, it does not ever engage OD. I did not see the transmission after the conversion, so I do not know IF there is a 2nd gear isolator switch.  But, I think there OUGHT to be..

I picked up the car at the end of last week, and I am sure the shops will make good on a perfectly functioning OD.  But I want to know if this is a simple adjustment issue.  Maybe I can do it myself.  I can get the car on a lift and do the work from below if it were feasible.

I would rather not pull the interior to access the top, but maybe it is necessary.

Any advice/experience with this sort of issue?

-Tony
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