My bouncing guage was just that, a bouncing guage. I installed
an additional aftermarket guage, and it's as steady as a rock.
In fact, sometimes my stock in dash guage just doesn't read at all,
but the aftermarket one works fine.
>===== Original Message From "wizardz" <wizardz@maxinter.net> =====
>A bouncing gauge is usually one of two things.
>
>1) you have something floating around in your oil galleries that partially
>blocks the gallery until a certain pressure is reached where the blockage
>is breached. (IE damaged head gasket, solid crud chunk
>in one of the galleries , etc etc -- ha kinda' like a human blood clot)
>
>2) The oil pump is dying or is starving for oil. The oil pick up could be
sucking air
>or the pump impellers are giving up tolerances as the engine warms up and
>can't maintain pressure. You could have so much old sludge in you oil pan
>that the pick up is very clogged and can't supply a 'steady' supply to the
pump.
>etc etc etc YMMV
>
>.... just a couple of things to check...
>
>
>Paul Tegler wizardz@toad.net http://www.teglerizer.com
>OBie - '73 BGT - daily driver
>http://www.teglerizer.com/mgstuff/ob_description.htm
>Punkin' - '78 Spitfire - corner ripping screamer
>http://www.teglerizer.com/triumphstuff/spit78.htm
>Lil' Greenee - '73 RWA Midget - lady killer
>http://www.teglerizer.com/midgetstuff/index.html
>
>-----Original Message-----
>From: Chris Attias <cattias@cats.ucsc.edu>
>To: MG Listserver <mgs@autox.team.net>
>Date: Thursday, March 09, 2000 11:14 AM
>Subject: Re: Oil Pressure Relief Valve
>
>
>Word on the street is that Gary R Hacker said:
>> I plan on replacing the oil pressure relief valve on my 75 B soon. The
>> oil pressure gauge has been bouncing and acting strange lately. I have
>> eliminated various oil leaks and cannot think of any other reason the
>> gauge would flutter at different rpms. Any other ideas or any things to
>> look out for or tips that would be handy in replacing the valve?
>
>Replacing the piston and spring won't necessarily cure the bouncing
>gauge, at least not at idle. I replaced mine a while back, and the
>bounce is still there. I have had a rebuilt engine--new
>everything--same thing. I think it's just the way it works.
>
>Chris Attias
>'64 MGB
>'84 Alfa Romeo GTV-6
Joe
'75 B Roadster
Lowered and loud.
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