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
Just some WAGs, but... (archive)
[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]
Posted by Mark in SBA on May 27, 2001 at 19:10:28:

In Reply to: Buzz from left fuel rail of V12 posted by Mike on May 26, 2001 at 20:52:51:

Mike,

Well, at idle the regulators should be pretty open since there's a lot of manifold vacuum, and then as you load up the engine, the regulators should gradually close.

My guesses:

1) Blocked/kinked fuel return hose.
2) Knick/cut in vacuum hose preventing regulator from opening.
3) Needs new O-rings (or did you R&R then when you replaced the pressure regulators?)

Just WAGging here, but worth a quick check.

Mark
1992 E31M70B50

p.s. Just R&R'd my gaskets, hoses, and injectors:




Follow Ups:


[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2009 Jump Internet Inc. All rights reserved.