|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
![]() |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Oil on the electrode side of the spark plugs!
Is this the end?! :-). Or just another "simple" seal replacement?
__________________
2001 BMW X5 3.0i, Automatic, Gasoline Last edited by jac; 03-06-2023 at 09:22 PM. |
Sponsored Links | |
|
#2
|
|||
|
|||
Those seals are part of a valve cover gasket replacement. I would use a factory BMW gasket kit AND grommets. Get the misfire solved first though.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#3
|
|||
|
|||
80stech: Thanks. The oil is on the electrode side of the spark plug, not on the connector side. And I always thought that the seals that are part of the valve cover gasket overhaul are for preventing oil from reaching the connector side, not the electrode side. Please would you confirm?
__________________
2001 BMW X5 3.0i, Automatic, Gasoline |
#4
|
|||
|
|||
I didn't understand what "injector side" was. Are you sure you are not getting oil on the plug when pulling them out ? Maybe concentrate on getting the misfire solved.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#5
|
|||
|
|||
Quote:
![]() When it gets old it becomes like hard plastic and doesn't seal around the head properly ![]() ![]() half of my plugs were filled with oil and I was also getting misfires |
#6
|
|||
|
|||
+1^ on the solution to the age old issue of a failed valve cover gasket.
__________________
![]() 2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green |
#7
|
|||
|
|||
Quote:
In my case the rubber tube on the ignition coils is coming out completely clean. So I do not think the oil is coming from the top of the head. That is what I was trying to clarify when I said that the oil is found on the electrode side of the spark plug. The "electrode side" is the side of the spark plug exposed to the piston/injector in the attached diagram. I also replaced the head cover gasket (all 3 pieces) about 2 years ago with original BMW parts... I guess I could have screwed that up (not seating the gaskets properly), but that would not explain why the coil tubes come out clean.
__________________
2001 BMW X5 3.0i, Automatic, Gasoline Last edited by jac; 03-06-2023 at 09:23 PM. |
#8
|
|||
|
|||
If you have a fresh set of plugs, try them after you clear the codes and do a compression test. How many miles? Let us know the compression numbers. The image appears to show a direct injection motor. The M54 has the injectors farther up the intake manifold. Is it oil on there or does it smell like gasoline?
__________________
2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed, |
#9
|
|||
|
|||
Thanks, do I need a special tool, other than the BMW scanner or INPA software, to pull the compression numbers?
Also, I included the graphic in my previous post for illustration purposes of the "electrode side" of the spark plug. Sorry if that mislead you.
__________________
2001 BMW X5 3.0i, Automatic, Gasoline |
#10
|
|||
|
|||
You can get a compression tester pretty cheap at Harbor Freight or borrow one from Autozone etc. The software won’t give you the numbers.
__________________
2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed, |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|