[6pack] OD doesn't disengage when hot

[michael lunsford]

I just returned from a 150 mile road trip with the club.  For the past several
trips I have noticed that the OD on my car (A type) won't engage near the end
of the trip.  It works fine otherwise and doesn't drop out of OD unless I
disengage it normally.  When the car is hot after a long drive (no overheating
issues) and I attempt to reengage it nothing happens.  Ideas, suggestions???
TIA.
 
Mike Lunsford 1970 TR6 with A type OD, TBI