My experience is primarily with the A type. I sometimes have problems
getting them to work after a rebuild (no pressure). I've thought it may
take some time for the air to work out of the system. I'm rebuilding
one right now and plan to try priming the pump by squirting oil into it.
Larry Young
Don Elliott wrote:
> I had the overdrive in my TR3A (A type) rebuilt after VTR in Portland
> Oregon in 2000. The pressure rose to 325 psi, normal for an "A type"
> overdrive. It worked fine for about 10 miles then wouldn't work. We
> spent a day trying to get it to work without success before bleeding
> the oil down from top to bottom with a dentists pick to pry back the
> bottom ball valve, filling the oil via the top hex plug on the right
> hand side with the top ball valve out, and we let the oil flow down.
> Then it worked and has worked fine since. It is my opinion now that I
> believe that if I had just driven it, would have corrected itself
> after a while.
>
> Don Elliott, Cancer Survivor, 1958 TR3A, Montreal, Canada
>
> ----- Original Message ----- From: "Randall Young"
> <ryoung@navcomtech.com>
> To: <fot@autox.team.net>
> Sent: Friday, June 03, 2005 8:20 PM
> Subject: RE: J-type overdrive
>
>
>>> The overdrive worked fine for about 25 miles then jumped back into
>>> straight 4th gear. It would then work for a little bit, then not
>>> work at
>>> all. The solenoid sounds good when I put it in third or fourth gear and
>>> flick the switch. The ammeter drops the usual amount.
>>
>>
>> FWIW, Richard, I had almost exactly the same complaint with my J-type
>> ...
>> replacing the O-rings in the solenoid did wonders for it.
>>
>> Randall
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