Ditto Randall,
Had friend with the same problem on a newly re-build OD unit in his big
Healey. Before I could get there he had already pulled/swapped the
trans/OD unit out for a spare, I called Bob Jasper who recommended that same
good rap on that ring with a bronze hammer and 'Bob's your uncle'! He was
both impressed with the simple fix, and frustrated as he just wasted an
entire day doing the swap-out.
Bill
-----Original Message-----
From: Triumphs [mailto:triumphs-bounces@autox.team.net] On Behalf Of Randall
Sent: Friday, March 18, 2016 5:16 PM
To: terryrs@comcast.net; 'triumphs@autox.team.net' <Triumphs@autox.team.net>
Subject: Re: [TR] OD Transmission and Reverse Gear
If you can hear the clack from the solenoid (as opposed to the much softer
click from the relay), then it pretty much can't be an electrical problem.
A tiny chance it might be solenoid adjustment, but IMO a sticking clutch is
much more likely. (Usually when the solenoid adjustment is right on the
edge, it won't engage reliably but still disengages.)
Another possibility is a partially plugged relief port in the valve stem
(red arrow in this photo
http://s258.photobucket.com/user/TR3driver/media/A-type%20OD/A-TYPEODOPERATI
NGVALVEANDDRAINHOLE.jpg.html
But I'd suggest you call John and ask him about it before doing anything to
the unit (including readjusting the solenoid).
PS, I believe thumping the brake ring (the black ring visible between the
main OD housing and the tail housing) with a hide hammer is the recommended
cure for a stuck clutch. It should stop sticking after a few cycles.
-- Randall
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