How fast do You loose the pressure after switching off the engine hot/cold?
G
2011/9/12 Austin Healey <pajtamuvek at gmail.com>
> Maybe worn ball or seating/weakend spring at the valve.
>
> G
>
>
> 2011/9/12 Thomas Willig <twillig at ruda.de>
>
>> Gentlemen,
>>
>>
>>
>> I am facing the problem that the Overdrive on my BN2 is quite slow to
>> engage when the gearbox is hot. Here are the symptoms /parameters:
>>
>>
>>
>> 1. I am using Penrite 30 gearbox oil -a non detergent oil
>>
>> 2. I installed a OD pressure gauge that can be read when driving the
>> car.
>>
>> 3. Gearbox / Engine cold, pressure is 490 Psi -Looks perfect to me
>>
>> 4. OD engages faultlessly
>>
>> 5. Gearbox / Engine warm (Engine Oil 200 F) OD pressure 360 Psi -Too
>> low.
>>
>> 6. The overdrive needs about 4-5 seconds to engage in other words the
>> OD pressure takes that long to reach the 360 Psi again.
>>
>>
>>
>> ? Am I facing a worn oil pump? Any advice what I can/should do.
>>
>>
>>
>>
>>
>> Best regards
>>
>>
>>
>>
>>
>> Thomas Willig
>>
>> BN2L-230649 01. Feb. 1956
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