[TR] A-type OD questions

[Kinderlehrer]

Sure seems like it is a poor adjustment of the isolator switches. It is easy enough to adjust them but you will have to take the trans cover off to get to them, I don’t believe there is any way to do it from underneath. Your top cover may not have a the hole for a cut out switch, you would have to drill and tap it to install one. 

 

Bob

 

 

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Anthony Rhodes
Sent: Monday, September 04, 2023 9:09 AM
To: Triumphs List
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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