 » Site Navigation | | | | » Recent Threads | | | | | 318ti AMR500 ... 06-09-2023 09:43 PM 09-22-2023 10:21 PM 29 Comments, 22,534 Views | | | |  |  |  | | | Oil Filter Housing Leak fix DIY | | | | | | |
this looks like the exact oil leak i have...excellent write up dave! | | | | |
props on this write up!!
very well done | | | | |
I just did this today, great write up, but mine is still leaking. After looking at the diagram I think my bush may have been in backwards to start with. Does the side with the spring on it go into the engine? | | | | |
The side with the spring goes toward the oil filter housing. I had this problem and this write up really saved my butt. Many thanks! | | | By jg e36 on 08-28-2008, 04:27 PM |
Thanks Dave! I just did this job yesterday and your write up was of great help. My car has the secondary air pump and I removed it to have more room to work. The gasket was in good condition, but the o-rings were completely flat and dryed out, so I guess that was the source of the leak. | | | | |
Worked like a charm...once I finished the job!
I got everything disassembled and was amazed that nothing had gone wrong yet! I thought to myself: "This might be the first time I work on my car without some unforseen misfortune!"
Then as I was torquing the bolts back into the oil filter housing, I sheared the bolt by tightening it too much by accident! I had half a bolt stuck in my engine. and only about 2 mils were sticking out, making it hard to extract this bolt. It was at an awkward position to try and drill it out. Several hours later and two cans of freeze off and several pairs of pliers later, I managed to actually twist this bad boy out!
Then I had to wait a week for new bolts to get shipped to me!
On a side note, make sure you keep track of which bolts go where. Not hard if everything goes smoothly, but after being carless for a week, I was glad I labeled all the bolts! | | | By Ray B on 01-07-2009, 01:15 AM |
Nice I have the same leak and am doing this tomorrow, Do you have to buy the bush or will the old one be ok? I had to order everything and i only ordered the gasket and oring, wish I had seen this first. Well done | | | By jg e36 on 01-07-2009, 02:12 AM |
The old one should be ok | | | By Mopho on 01-16-2009, 05:07 PM | 
Quote: Originally Posted by jg e36  The old one should be ok | That's good, I only got the o-rings and gasket too. Good to know which direction the bush goes in, whoever worked on my ti before I bought it, didn't do anything right. Even the valve cover gasket I just replaced was in wrong at the rear, making it leak like a seeve. Got that fixed, now to change the oil filter housing gaskets/o-rings... Then it looks like the front crankshaft seal is leaking too...possibly the rear also... Sigh...  This is the first Bimmer I ever owned that leaked so bad. Even my '84 325e Coupe with 217K didn't leak... Goes to show, if you get a bad mechanic working on something, (I even had two stripped valve cover bolts, one one the rear spark plug valley on the ti) they can sure fudge things up... By the way, if you run into this problem with stripped bolts, (threads gone inside engine or head) what I did was use slightly longer bolts to catch the good treads. I ran a tap in first, to clean up the threads, and blew them out with compressed air.  | | | By jg e36 on 01-16-2009, 08:39 PM |
This may not be your case, but when I first noticed the leak it looked like the front crankshaft seal was to blame, that was before I discovered the oil puddle at the base of the filter housing. What happened was that the oil leaking from the housing ran down and behind the crank pulley making me believe that the fron seal was bad. Once I got the area cleaned up and the rings and gaskets replaced there is no evidence of any oil around the housing or the front crankshaft seal.
I recommend you to clean the area and do the housing fix, then drive for a while and re-check to see how's everithing looking.
Good luck
jg | | | By Mopho on 01-16-2009, 10:07 PM |
Quote: Originally Posted by jg e36 This may not be your case, but when I first noticed the leak it looked like the front crankshaft seal was to blame, that was before I discovered the oil puddle at the base of the filter housing. What happened was that the oil leaking from the housing ran down and behind the crank pulley making me believe that the fron seal was bad. Once I got the area cleaned up and the rings and gaskets replaced there is no evidence of any oil around the housing or the front crankshaft seal.
I recommend you to clean the area and do the housing fix, then drive for a while and re-check to see how's everithing looking.
Good luck
jg | I'm praying you're right! A BMW specialist I get my parts from in Berkeley, said he doubted it was the front seal, he hardly ever sells the front or rear seal unless it's for a rebuild. Mine has been so cobbled up, I am being pessimestic.  | | | | |
A little advice for everyone... The Bush comes with both o-rings and costs about 8 bucks. O-rings bought seperately cost 5 bucks each. So it's cheaper to buy the Bush.
(that just sounds wrong).
Also, this problem seems so crop up when cold weather hits. | | | By Mopho on 02-26-2009, 12:22 AM |
I am going to replace just the gasket to the block.
That is what is leaking.
If you take the o-rings in to any reputable auto parts store (NOT Checker/Kragen/Pep Boys type) they will match up the o-rings for about a buck apiece, that is if you need the bush or o-rings in the first place. I have a box of o-rings I bought from Mac or Snapon Tools years ago (can't remember which it was so long ago), and it has paid for itself 10 times over.
JMHO | | | | |
just buy the bush, its cheap, and comes with the o-ring | | | | |
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