Tom,
Check out the following URL. It's written for Healeys, but with the A-Type
OD, so it's almost all the same. I really liked the OD engagement valve
section and it worked great for me. He also covers overhaul and other
problem solving too.
http://www.team.net/www/healey/tech/big_hly/od/finespanner.html#part1
It is a pretty good article on the OD's.
To trouble shoot and test my OD, I went for a drive, without the tranny
tunnel installed and manually moved the actuation lever. This separates the
solenoid action and adjustment from the OD function. Once I had good OD
function, I knew any further problems were between the actuation valve and
the solenoid. BTW - On a hot day, it's really hot in the cockpit without
the tranny tunnel.
Then I installed a hot jumper wire from the OD to check out the function of
the solenoid. When I engage mine, I get a pretty loud click, which is the
solenoid. The OD engagement makes no significant noise, just a nice solid
shove in your back, which I hope you will get to experience soon.
Good luck,
Jack Brooks
1960 TR3A
1974 Norton 850 Commando
Hillsdale, NJ
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