[TR] J-Type Overdrive - Stag

[stagbytriumph at triumphstagclub.org]

John,

Well there is good news and bad news.   Like Dave  thinks, if it is the top cover switches, the good news is the original Lucas switches can be carefully disassembled, contacts cleaned, lubricated, and reassembled.  Beware if the available replacement switches as they are usually garbage.

 

I have some photos of that process.

 

The bad news is, on a Stag that requires dropping the transmission to get to the switches, OR, cutting a hole in the metal transmission cover and making a larger plate to cover the access hole.

 

Glenn aka StagByTriumph Garage

 

From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of Lee&John Howard
Sent: Monday, July 3, 2023 3:35 PM
To: DAVID MASSEY <dave1massey at cs.com>
Cc: triumph list list <triumphs at autox.team.net>
Subject: Re: [TR] J-Type Overdrive - Stag

 

Yes, it switches in and out all by itself. When I then switch back to 4th she behaves normally. I'll first check where the OD sub-harness meets the wiring that goes up the shift lever. In that space several wire bunches are scrunched together.

Thankyou Dave.

JohnH

 

On Mon, Jul 3, 2023 at 1:07 PM DAVID MASSEY <dave1massey at cs.com <mailto:dave1massey at cs.com> > wrote:

Does it switch in and out with no input from you or is it necessary for you to re-engage each time?  If it is the former it might be something as simple as the adjustment of one of the interlock switches on top of the transmission.  If it is set right at the ragged edge of actuation it can be switching from open to closed to open just due to the vibrations.  Also check the wiring for a loose or poorly crimped connector.  

 

Dave 

 

 

 

 

On Monday, July 3, 2023 at 02:22:56 PM CDT, Lee&John Howard <leejohn7 at gmail.com <mailto:leejohn7 at gmail.com> > wrote: 

 

 

Looking for some help with my 73 Stag's overdrive. After some work behind the dash instigated by my recovering the center console, on the very first drive OD would not stay engaged.  After being switched on it would immediately begin to flip in and out, not holding OD for more than a second or two. Could this be a wiring issue? I'll be checking the switch a little later. Any other ideas? Its been working flawlessly since a rebuild maybe 10 years ago. 

Many thanks

JohnH


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