The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
Re: fuel pump pressure? (archive)

[ Follow Ups ] [ 2002 Message Board ] [ Msg. Board FAQ ]

Posted by m.kotwick on September 07, 1999 at 02:34:31:

In Reply to: fuel pump pressure? posted by jonz on September 06, 1999 at 22:20:04:


Original BMW repair manual states that if pump pressure is less than 0.05 atm (0.7 lb/in2)), the pump is defective. Just how pump output might be measured with such precision I could not say. I fitted a Purolater glass and metal fuel filter to my '74 equipped with a Weber 32/36 DGAV and a OEM Piersburg replacement fuel pump. The fuel filter always seemed to be no more than half full to my recollection. This supposedly premium - grade filter was also subject to failure in that the glass housing proved especially vulnerable to damage. While I exercised normal care during installation, the glass housing eventually developed a hairline crack which allowed air to be sucked into the line leading to the fuel pump. Not an upgrade I would recommend to anyone. Am now running the standard Purolater canister-style replacement. Good luck.

M. Kotwick

'74 '02 Malaga.

Follow Ups:

[ Follow Ups ] [ 2002 Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk. Logo © 1997 - 2018 Jump Internet Inc. All rights reserved.