I'd start with a pressure test. Here's a link to a guy that sells gauges to
test overdrives, 'A' types and others. I own several, one for each type of
overdrive I've rebuilt. NFI and all that.
jholekamp@yahoo.com
Ed Woods
Subject: [Healeys] o/d issues
> my brother and i just took about an 800 trip in his healey up to portland
> and down the oregon coast. this was the first long trip since the engine
> rebuild and everything worked great except for the o/d. it took a long
> time to go into o/d and it was almost imperceptable sometimes because it
> took so long to engage. going up hill and downhill it would slip out or
> try to disengage. on flatland it seemed to do fine. since i am a
> pessimist and always assume worst case scenario, my feeling is that the
> oil pump or the pistons have deteriorated and cannot hold it in o/d.
> before we pull the o/d and tear into it is there anything that we are
> missing, i.e., electricial malfunction or operating valve. it worked fine
> last summer and he did not use it since then. any help appreciated.
> hjim
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