|
|
|
#1
|
||||
|
||||
fuel pressure
Is there a way to test the fuel pressure prior to the injection pump? My car was sitting for about three months and now will start but not keep running. I know the filters need to be changed but I am wondering about the pump and filter in the tank.
__________________
1983 300SD 200000miles |
#2
|
|||
|
|||
There shouldn't be a pump in the tank. There is a strainer in there that often gets clogged after decades of use. If you have more than a half tank of fuel, you can switch the supply and return lines and see if the car runs any better. If it does, it's time to clean or replace the tank stainer.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. |
#3
|
||||
|
||||
Quote:
Sounds like you may have air in your fuel. A clogged fuel strainer /primary /secondary fuel filter could cause the symptoms you are having.
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#4
|
|||
|
|||
Checked mine this morning. Got a spare line from LKQ pick and pull and used the fittings to use with my harbor freight pressure tester. Like others have said on another thread, it is nearly impossible to get an accurate read on pressure because of the violent pulsations from the left pump.
I really wanted to see the actual pressure prior to doing a spring stretch on the relief check valve. Heard that someone restricted the orifice on their gauge to dampen the oscillations. Might anyone have anything to add on orifice restriction. |
#5
|
||||
|
||||
It is easy to make a restriction in a Fitting.
Fill about 1/4" of the end of a Fitting with JB Weld Epoxy and let it cure properly and after that you are able easily drill what ever size Hole you want into the Epoxy. See Post #3 for the test specs. Correcting low internal IP fuel pressure on my 85 300D turbo If you are going to do the test it is best to do so with a New Fuel Filter so a plugged Filter does not influence the test.
__________________
84 300D, 82 Volvo 244Gl Diesel |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|