Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

Reply
 
Thread Tools Display Modes
  #1  
Old 01-06-2013, 07:50 PM
mgoods50 mgoods50 is offline
OBDI Junkie
Location: Nashvegas
 
Join Date: Nov 2012
Posts: 74
Mein Auto: E36 M3
Oil leak present AFTER VCG & head plugs change Help Please?

This one has be scratching my head.

Working on a buddy of mine's car- leaking oil like a sieve. Diagnosis: Valve cover gasket- bad!

I replaced the valve cover gasket and plugs with Victor Reinz- the one with the thin red silicone band. The plugs were not OEM, I believe MTC from ECSTuning. Mating surfaces were cleaned thoroughly, and no apparent warping was noted.

Installation was a bit curious on the front intake cam plug. It did not seem to want to fit flush. Perhaps 1mm off (rise). I mashed it down, and it seemed willing to behave, so I torqued down the valve cover.

After test drive, oil leak is still present, as bad as, or as worse as before.

Oil is dripping from the bottom of the A/C bracket. Underneath the car, and from above, I cannot locate directly the source so I removed the VC for inspection. This revealed what looked like a good seal, but I am not above making a mistake or overlooking something.

As a measure of eliminating the potential for that plug not making perfect contact / level seating surface, I decided to introduce some black RTV (high oil resistance) and let it cure fully before testing again. I applied to the half-moon surfaces and the area where the head meets the plug. The front intake side plug did not want to fit flush again. WTH? I even moved the plugs around.

Result: SAME AS BEFORE- leaking like a sieve. Oil drip still present, trickling down off the A/C compressor.

Request: I've turned a million wrenches, but would appreciate any insight on this. I'm not an E30 expert, and have done some searching, but this has me scratching my head. Thanks kindly for advice!
__________________
It's not what you buy, it's what you build- Unknown
EN90283 - Stabled for HG repair
DH06247 - Running like a champ
Reply With Quote
Advertisement
  #2  
Old 01-06-2013, 08:58 PM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
Old School
Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,441
Mein Auto: E23;E30;E38;E32;E34 +
Hi, The half moons sound like your problem. Try genuine and you should only need sealant at the top 'corners'. Without any gasket does the VC rock on the head or fit 'square'? Also clean down engine and watch for new oil. It might not be coming from where you think.
__________________
Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
Reply With Quote
  #3  
Old 01-06-2013, 10:57 PM
mgoods50 mgoods50 is offline
OBDI Junkie
Location: Nashvegas
 
Join Date: Nov 2012
Posts: 74
Mein Auto: E36 M3
BMWFatherFigure-
Thank you for that advice. I have cleaned it thoroughly. Peering into the timing area is very difficult with the radiator and timing components in place. I'm convinced it is coming from that area, since the drip appears on that side. And, it is clearly coming from the front since the drip is apparent after shutting off the engine (on the A/C compressor).

Is there anything else in the front part of the engine that could be also leaking? I have not removed the timing belt cover etc- but the GEARS on the top, and belt, which can be slightly seen-- are DRY. This makes me think the leak is following gravity, trailing down the front, slightly diagonal side of the head, then onto the front of the block, ultimately at the A/C compressor.

I did not test for rocking with the valve cover gasket removed, but with that particular plug in place, there is a certain mis-fit. Only under torque will the plug square up. I am puzzled as to why the plug I pulled out fit flush (albeit the entire area leaked horribly before repair), but the new plug will not fit properly. I wish I had the "old" plug-- I would install it with a new gasket and try that.
__________________
It's not what you buy, it's what you build- Unknown
EN90283 - Stabled for HG repair
DH06247 - Running like a champ

Last edited by mgoods50; 01-06-2013 at 10:58 PM.
Reply With Quote
  #4  
Old 01-08-2013, 03:04 PM
BmwMan92's Avatar
BmwMan92 BmwMan92 is offline
I <3 my E34
Location: Seattle, Wa // Everett
 
Join Date: Dec 2009
Posts: 1,603
Send a message via Skype™ to BmwMan92
Mein Auto: 1985 318i// 1988 325e
If your engine in question is the m20 I'm betting your problem is in your timing area
__________________
Brandon
http://www.facebook.com/brandon.m.fore


Quote:
Originally Posted by v8bimmer View Post
I just dont see any other logical way around this problem.
Reply With Quote
  #5  
Old 01-08-2013, 04:51 PM
mgoods50 mgoods50 is offline
OBDI Junkie
Location: Nashvegas
 
Join Date: Nov 2012
Posts: 74
Mein Auto: E36 M3
It is the M20.

I'll look into the timing area diagrams.

Has anyone experienced issues like this with one of the plugs?
__________________
It's not what you buy, it's what you build- Unknown
EN90283 - Stabled for HG repair
DH06247 - Running like a champ
Reply With Quote
  #6  
Old 01-08-2013, 05:12 PM
downhiller's Avatar
downhiller downhiller is offline
livin large
Location: des moines
 
Join Date: Oct 2007
Posts: 7,243
Mein Auto: 2012 hypermotard 796
i know my cam seal was starting to leak before i did the head gasket. so while i had the head off i changed it, no more leak.
__________________
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming
Reply With Quote
  #7  
Old 01-08-2013, 10:51 PM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
Old School
Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,441
Mein Auto: E23;E30;E38;E32;E34 +
Torch and mirror. Awkward but to eyeball the leak is gold! Oil won't go uphill so work from the highest dry area down. Maybe worth dropping off the cover and check for warp. One possibility out of the way..
__________________
Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 01:25 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms