Author Topic: 1993 318i M42 Engine noise with video  (Read 11405 times)

beemer1

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1993 318i M42 Engine noise with video
« Reply #30 on: April 10, 2009, 02:56:42 PM »
Yup, I will never work on my engine again until its CLEAN ;)

To add insult to injury all the tools you are using will have to be cleaned!  

Good luck,

Steve

B318M42W

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1993 318i M42 Engine noise with video
« Reply #31 on: April 12, 2009, 08:40:23 PM »
Carl, could you tell me what bolt went there??? and also, does it hold anything else than just the timing cover? passes through to the oil passage??


i've got a good oil leak from that bolt (still wondering what happened to it, it's not there???)
thanks!
ps: thank you for the excellent picture that i stole from you:D
[SIGPIC][/SIGPIC]
M90 Blown M42 :cool:

carl6405

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1993 318i M42 Engine noise with video
« Reply #32 on: April 13, 2009, 08:10:40 AM »
B318M42,

Yes, thats one of the bolts that hold the oil filter housing against the timing case. As you see in that picture there. There are 6 bolts. The two at the top are very long. If it is missing, there would definately be a oil leak.

B318M42W

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1993 318i M42 Engine noise with video
« Reply #33 on: April 13, 2009, 10:48:30 AM »
thanks! found a new bolt and put it in. hope it stops leaking :D
[SIGPIC][/SIGPIC]
M90 Blown M42 :cool:

carl6405

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1993 318i M42 Engine noise with video
« Reply #34 on: April 14, 2009, 10:21:09 AM »
If it doesnt stop the leak, then you would need to order the gasket for that housing. Its not very difficult to replace. Wow, after going through this timing case/oil pump replacement project, everything seems easy in comparison. Finally got the lower timing case off this weekend. With out removing the oil pan, by the way!

B318M42W

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1993 318i M42 Engine noise with video
« Reply #35 on: April 14, 2009, 05:12:56 PM »
great job! how is the oil pump driven??
(and I think it stopped leaking:D waiting for the skidplate to stop dripping to get a definate answer)
[SIGPIC][/SIGPIC]
M90 Blown M42 :cool:

nicknikolovski

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1993 318i M42 Engine noise with video
« Reply #36 on: April 15, 2009, 04:56:46 AM »
It's driven directly off the crankshaft using a rotor set. Carl6405, could you please post a picture of the back of the lower chain case where the oil pump is housed?

carl6405

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1993 318i M42 Engine noise with video
« Reply #37 on: April 15, 2009, 07:59:45 AM »
Nick, I sure will post a pic. It will have to wait until this evening, Im at work at the moment. I will give the credit to my step son for prying the timing case off of there. I had every bolt out. It is tricky, because some of the lower bolts I didnt see until after I found a pic on Ebay. Someone selling a lower timing case. I saved the pic to my pc. Printed it off and comared that with my lower timing case. I did find a couple more bolts, they were hard to see, being coverd in black oil.

The way he got it off, was he pryed at the bottom, right side, as your facing the car using a 12" pry bar. Then pryed from the bottom left and it slowly came out. He said that we are going to have to lower the oil pan just a bit, to get it back on. Getting it back on, will start, hopefully this weekend.  This was a tuff job. Lots of bolts, different size bolts and hex bolts. The hex bolts are metric, I had to go buy a Hex bit set.  I took photos each step though, so, putting the correct bolts back in, shouldnt be an issue.

What I found, was my timing chain, rails, and the cam gears have all been replaced by the previous owner of the car. There must have been a big problem with it, cause you can see marks from where the chain ate in to the aluminum timing case. I'll get pics of that too.
« Last Edit: April 15, 2009, 08:02:47 AM by carl6405 »

carl6405

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1993 318i M42 Engine noise with video
« Reply #38 on: April 15, 2009, 07:26:37 PM »
Pics as requested.
Oil Pump side of my timing case
http://i417.photobucket.com/albums/pp255/carl6405/timingcase2.jpg


Front side. Notice where the chain, at one time, was rubbing on the inside of the timing case
« Last Edit: April 15, 2009, 07:28:55 PM by carl6405 »

nicknikolovski

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1993 318i M42 Engine noise with video
« Reply #39 on: April 16, 2009, 08:31:23 AM »
Thanks for the pics Carl. Well done with that, definently a tough job.

carl6405

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Cause of the problem found
« Reply #40 on: April 18, 2009, 02:48:23 AM »
After removing the oil pan. We found lots of black chips, all about the size of a dime. Also, a piece of metal about the same size. These are fragments of the old timing chain guides that fell down in to the oil pan were never removed, when the previous owner had it in the shop for the timing chain and guides repair job. So, These fragments were clogging the oil sump, restricting the flow of oil to the top of the motor.  I dont have the engine back together yet, but it is on it's way back together. Hopefully by tomorrow evening it will be.
« Last Edit: April 18, 2009, 09:04:05 AM by carl6405 »

carl6405

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Car is finally fixed.
« Reply #41 on: April 23, 2009, 05:27:33 AM »
Lesson from this story.
If your chain guides ever ever break or chip away. Make sure you or your mechanic removes the oil pan to check for fragments/shrapnel. Thats exactly what caused this problem. The previous owner of the car had replaced the chain and guides, but the broken pieces were down in the oil pan getting sucked up in to the screen of the sump and restricting the oil flow. Therefore the top of the engine was starving for oil.
The good news is, after all that abused to the engine, from lack of oil, the motor, inside is still in good shape. The motor was pretty clean inside. Now, she runs smooth as silk. I wil have to get a video clip of the motor running after the repair.

Thank you folks for all your help!

derek9702

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1993 318i M42 Engine noise with video
« Reply #42 on: April 23, 2009, 06:41:46 PM »
Glad you were able to solve the problem.