Author Topic: Oil Feed Check Valve? (Read 9713 times)

ABuseO · « **on:** May 19, 2007, 02:32:39 PM »

So I needed to replace my Cylinder Head, and in the bently it tells me that i need an oil feed check valve. When i removed the Cylinder head, there wasn't one In the Block...

Do I need this part, and if i do, where can i acquire it?

Thank you, Austin

christophbmw · « **Reply #1 on:** May 19, 2007, 02:50:45 PM »

hmmm. thats odd it didnt have it, if it is not installed you will have poor oil pressure....

the check valve is part number: 11111734667, and if i can remember it takes a spacer sleeve p/n: 11111739185. it is located in the block (on the top in between cylinder's #2 and #3).

ABuseO · « **Reply #2 on:** May 19, 2007, 04:27:33 PM »

Any Idea where I can buy those parts from?

kowalski · « **Reply #3 on:** May 19, 2007, 07:09:48 PM »

pics?

AL GReeNeRy · « **Reply #4 on:** May 19, 2007, 07:26:46 PM »

Quote from: ABuseO;26111

and in the bently it tells me that i need an oil feed check valve.

theres your problem. our m42 isnt in the bentley. thats the older m10 engine. if you said it wasnt in there, we aint got it. or like cristoph said, its somewhere else..

christophbmw · « **Reply #5 on:** May 19, 2007, 11:40:00 PM »

Quote from: ABuseO;26116

Any Idea where I can buy those parts from?

the dealer. (or the stealer as i call them).

Quote from: AL GReeNeRy;26121

theres your problem. our m42 isnt in the bentley. thats the older m10 engine. if you said it wasnt in there, we aint got it. or like cristoph said, its somewhere else..

the e36 version of the bently covers the M42 engines, thats where i learned of the check valve.....but its in the block not the head.

ABuseO · « **Reply #6 on:** May 20, 2007, 12:39:01 AM »

You're right, the e30 Bentley doesn't cover the m42, but my brother told me to get the e36 manual for the info it has on the m42. I've done some research online and from what I've found it seems like the e30 m42 didn't have the check valve installed at the factory, but did on the e36. Since I can't check that against the e30 Bentley manual because it doesn't cover the m42, it's just a guess. Another thread here from back in February had a guy that took off his head and didn't have the valve when he took it off, and when he went to install a replacement it didn't fit because the hole it supposedly goes in was threaded and therefore didn't fit.

What I'm asking is if anyone else has taken off the head on the e30 m42 and seen the check valve when you took it off, or was it never there in the first place? Will the engine self-destruct if I reinstall the head (and run it) without the check valve?

cecotto · « **Reply #7 on:** May 20, 2007, 09:56:22 AM »

In the M42 introdution papers from around 1989 BMW writes that the M42 does NOT have this valve. So this is normal.

However on some of the newer versions theres a -No return valve- in the block.

I would just keep the engine as it's supposed to be if it were me.

ABuseO · « **Reply #8 on:** May 20, 2007, 12:19:06 PM »

But then how am i supposed to order the correct part for it if someone has done it before, and when they try to put the part in, it doesn't fit. And apparently the car ran fine without it, its a difficult decision because i feel the same way, i should put the part in, however if the part will never fit, i don't feel like wasting the time to first try and order it, -pay for it-, and second try and get it in the block, thats why i want to know has someone has ever seen one in the block themselves?

2002maniac · « **Reply #9 on:** May 20, 2007, 12:33:19 PM »

well, you can either put it back together without the check valve as BMW did in the first place or if you are feeling paranoid, you can order the valve and drill out the oil passage so it fits.

These only came in the E36 M42's

ABuseO · « **Reply #10 on:** May 20, 2007, 12:36:06 PM »

Thats what I was thinking, just one of those parts they were iffy about, decided to go ahead and put it in on the e36's

dlmrun2002 · « **Reply #11 on:** May 21, 2007, 07:44:58 PM »

Only later M42's had oil check valves. I think 93 up. e30's don't have one and no place for one..
DLM

ABuseO · « **Reply #12 on:** May 21, 2007, 11:46:14 PM »

Yeah, but i have my cylinder head off, and it has a place for one. Its exactly where the bentley (for the m42 engine) says it should be.
We decided to go with the ballsy move, and just put the cylinder head back on without the "OFCV".

tim_s · « **Reply #13 on:** June 18, 2007, 05:28:11 AM »

out of interest, what was the end result with this?

dlmrun2002 · « **Reply #14 on:** June 18, 2007, 06:55:25 AM »

E30 M42 didn't have oil Check valves even if book or oem shows it. They came in either 1st or 2nd year on e36 M42 motors. Ask me how I know.... But not on e30 engines...
DLM