Messages

1

Engine + Driveline / Re: No more camshaft gears for e30 m42?

« on: January 08, 2018, 01:07:35 PM »

Hi

first picture: cam gear is pretty worn. rule of thumb is that the teeth of the sprocket shouldn't be to sharp. I would replace it.
second picture: left gear is fine. the teeth are more square/rounded. that gear doesn't suffer so much. I would replace the right one together with the cam gears.

you can get the crankshaft gear at the dealership. I bought mine 6 months ago. The cam gears for e30 318is and e36 318is are discontinued but can be bought on ebay. Search for 318is camshaft sprocket.
As far as I know BMW did not change the cam gears on the e36 m42b18 . Someone should confirm this as I'm not sure.

Check your chain rails whilst you're at it. If a large groove is showing you better replace them as well. Can be bought at the dealership but they are expensive.

Hope this helps you out.

2

Engine + Driveline / Re: e36 318is timing chain troubles

« on: December 31, 2017, 09:24:54 AM »

Yes indeed. The hole in the pictures is NOT where you are supposed to lock the flywheel. After some more research I found it and the flywheel is locked. That was the good news. Turns out everything is as it should be (cams square etc). So I'm back where I started...

Thanks for the help!

3

Engine + Driveline / Re: e36 318is timing chain troubles

« on: December 30, 2017, 09:11:03 AM »

Thank you for your reply. I see now. But I don't think I can reach that slot by that hole in the engine block I showed in the pictures. I did not remove the cams.

4

Engine + Driveline / Re: e36 318is timing chain troubles

« on: December 28, 2017, 11:17:06 AM »

Bump. Does someone have a decent picture ?

5

Engine + Driveline / Re: e36 318is timing chain troubles

« on: December 25, 2017, 04:39:55 PM »

thank you for your reply
piston 1 is at top dead center using the screwdriver method. Cams are square and correct. But I believe the crankshaft sprocket is off as I can't see any way to lock the flywheel.
also I think the crankshaft sensor pulley should give away if my timing is right but I don't know in what position it was before the chain replacement.

I hope I make sense

edit: I used the hole in picture number four as top dead center reference. i put a screw in it so it stayed locked in place. I guess thats not where you're supposed to put the locking pin (if you have it) ?

6

Engine + Driveline / e36 318is timing chain troubles

« on: December 25, 2017, 01:36:31 PM »

Hello fellow m42 enthousiasts

This forum has been a big help so far but this time i'm stuck and desperate. Maybe there are topics about this problem but I searched for days without exact solution.
I replaced my timing chain and now the car idles very rough and occasionally stalls. If I rev it there is a bang in the intake manifold.
I had a rough idle before so I cleaned the icv. When that did not improve it like I wanted I replaced it.

I'm starting to think I did not replace the timing chain as I should have.
The cams are square at the back. the two arrows facing up and the cam lobes are facing eachother upwards. Piston 1 is at TDC.
BUT I think I locked the flywheel the wrong way. I used the hole covered by a rounded trapezium shaped piece of rubber behind the sump to keep everything in place but it still could wiggle a teeth or two.

I feel like an idiot but can someone post a picture of the correct hole where the flywheel locking pin should be put in. I searched online but the pictures aren't clear enough.

PS: the engine turns and starts. I tough the m42b18 was an interfering design and that the valves would touch the piston if I cranked it manually. This did not happen so I tought the replacement was succesful.

I have some pictures. they're all taken with engine at TDC except for those with the hole I used for locking the flywheel. Can't remember if I put it at TDC1.
I also have pictures of the crankshaft sensor pulley. maybe the gurus will see if it's positioned the right way (it's at TDC).














Can someone help me out? Thanks!