..after about 30 seconds after the car stops, the pressure reaches 20
psi
Thomas Willig
Von: Austin Healey [mailto:pajtamuvek at gmail.com]
Gesendet: Montag, 12. September 2011 09:43
An: Thomas Willig
Cc: Healey List
Betreff: Re: [Healeys] Overdrive slow to engage when hot
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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