[Healeys] Overdrive problem

[Neil Blackshire]

Point taken
Thanks

-----Mensaje original-----
De: David Porter [mailto:frogeye at porterscustom.com] 
Enviado el: lunes, 15 de octubre de 2012 17:07
Para: 'Jay Holekamp'; 'Neil Blackshire'
CC: 'Healey List'
Asunto: RE: [Healeys] Overdrive problem

Remember, if pressure is used as a diagnosis tool, then pressure must be
measured with the unit in both on and off modes to determine if there is a
pressure drop. Next is to determine where it is.. The other thing with
pressure is that there is a "factory" rating and then there is what the unit
will still operate at rating. These are generally very different numbers.
Those, with soft accumulator springs (read Healey) will still engage at
around 100psi.. just saying dave

frogeye at porterscustom.com

Porter Customs   2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2  1959 AN5
Porter Custom Bicycles

cars:
 www.britishcarforum.com/portercustoms.html
gallery:
http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff

GO HERE: http://porterbikes.com/  nice pictures-fun facts-my world


-----Original Message-----
From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
On Behalf Of Jay Holekamp
Sent: Monday, October 15, 2012 8:52 AM
To: Neil Blackshire
Cc: Healey List
Subject: [Healeys] Overdrive problem

If you want to measure the pressure your overdrive is making (low/loss of
pressure a likely cause of your problem), I can provide the needed oil
pressure gauge and associated connection fitings:

http://tiny.cc/odgauge
 
Jay Holekamp


Hi Neil,
Based upon my experience i would think that the oil type is not likely to be
the real problem.
You should check that the operating
valve is opening all the way as per the
workshop manual as that is very easy
and can cause problems but again not
the most likely cause.
My bet would be
that the pressure accumulator bore and piston are badly scored and allowing
oil to pass. This can, with considerable effort be corrected without
removing the gearbox.
Wear and damage on other parts can contribute to the leakage but most of
those, like the operating pistons require removal of the unit for repair.

--
Michael Salter

*I have BJ8 water pump kits!!*
$12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums

Healeys at autox.team.net
http://autox.team.net/mailman/listinfo/healeys

Unsubscribe/Manage:
http://autox.team.net/mailman/options/healeys/frogeye@porterscustom.com