Date: Tue, 11 Jun 2002 10:06:40 -0400 From: "KeithG" <noonenopsamhlink.net> Subject: Re: Saab 9000 low oil pressure - what next?
I do not know what to say, here. No or low (real) oil pressure would indicate a failed pressure spring or plugged supply. You have verified that the sopply is clear and that the oil pump bits are not worn out of spec? As the rotor and housing wear, the pressure will drop, but it would take a wildly worn collection of bits to generate no pressure. Did the bits fit snugly in the pump housing or was there a lot of play? Have you determined that it is not the pressure sensor and that it is indeed generating pressure? "danny" <dannynopsamia-esprezzo.com> wrote in message news:3D05A826.CF9B2844nopsamia-esprezzo.com... > KeithG wrote: > > > > you should prime pump by packing it with Vaseline before reassembly. > > Delivery pressure is determined by oil pump measurements. These measurements > > are in the Bentley manual and are not detailed by Townsend's doc (attached). > > At this point, you have 2 options. 1: crank 'till oil pressure is visible by > > the light extinguishing or 2: disassemble and reassemble with a little > > petroleum jelly in the pump voids. > > > > http://216.78.172.244/engine_folder/front_crank_seal900.htm > > > > Thanks for the advice Keith - we never found that part in my manual. > Any idea of where a blockage might be, as so far all we are doing is > reassembling (correctly, this time) without having found anything wrong, > unless the measurements on the oil pump rotors show them to be out of > spec, but nothing explains why the car seemed fine on one trip, yet no > oil pressure on next trip. > > -- > Regards, > Danny > > http://www.gaggia-espresso.com (a purely hobby site) > http://www.dannyscoffee.com (UK advert for my mobile espresso service) > swap Z for above characters in email address to reply >
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