Messages

1

Engine management / Re: help with possible timing issue (no-start)

« on: October 19, 2013, 01:59:29 PM »

On the plus side, my cam gears look good and I bought a new gasket set. Do you think I need new valve guides as well or are those reusable?

2

Engine management / Re: help with possible timing issue (no-start)

« on: October 19, 2013, 01:55:49 PM »

Okay, so I got the head out but I'm not sure if the block is expected to look like this just from bent valves. I'm not sure if you can tell from the picture, but a green film (coolant?) is present on top of what looks like pools of oil. Is that expected, or do you think there is another issue on top of the bent valves?

3

Engine management / Re: help with possible timing issue (no-start)

« on: October 07, 2013, 03:09:43 PM »

Ok I've been out of the country for a while so I haven't been able to give the car any attention until now. So if it is the valves that are bent, can I use the valves from my old head? What else should I look for that might have been damaged? Also, what needs replacing when doing the valves?

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Engine management / Re: help with possible timing issue (no-start)

« on: July 18, 2013, 12:59:44 PM »

Yes all of the spark plugs were out

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Engine management / Re: help with possible timing issue (no-start)

« on: July 13, 2013, 02:43:15 PM »

Ok, so I did a dry compression test and got zero compression for the first two cylinders, 135 psi on the third and 190 psi on the fourth. Unsure of the results, I tested it again (dry) and got the same results for all cylinders except for the third cylinder, which was 90 psi the second time around...

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Engine management / Re: help with possible timing issue (no-start)

« on: July 10, 2013, 07:52:09 PM »

Here is a link to a video of what the car currently sounds like posted by my friend:

https://picasaweb.google.com/118320209921375590216/CameraUploads02?authkey=Gv1sRgCOPaz7D6rcO3tQE#5899060701290728418

7

Engine management / Re: help with possible timing issue (no-start)

« on: July 10, 2013, 07:48:48 PM »

Great! Thank you for the help. When I put everything together I did exactly as you said to align the cams and pistons, but I did not turn the engine manually. Could that be part of the problem?

Also, could you explain again what you mean by releasing the tensioner? It is fully extended at the moment, is that how it should be?

I plan to test the compression tonight, but seeing as I am now confident that the cams are aligned properly, is it possible that it is just the chain that isn't aligned? If so, how do I go about fixing just the chain? Thanks again for the help, bmwman91.

8

Engine management / help with possible timing issue (no-start)

« on: July 10, 2013, 03:34:29 PM »

Hey guys I'm wondering if anyone can help me with my most recent no-start issue. I recently replaced the cylinder head on my m42 because it was badly cracked on both the exhaust and intake sides. I didn't use the special cam removal tool do move the cams over to the new head, but I arranged them in the same direction as they were in the old head at TDC. The problem is, I removed the timing chain from the gears so when I put the chain back on its possible that the links aren't on the exact gear they were on before I removed them. Also, I may have broken the timing chain tensioner (its the original m42 one) by trying to compress it in a vise. when I put it back together after disassembly, I put oil in it (which I now know I shouldn't have done) and when compressing it I heard a large BANG like a gunshot. After I put everything back in my car, including the tensioner, I started it up and heard a loud rattling sound. I assumed it was the broken tensioner and got a replacement m44 tensioner, but after I put it in uncompressed (the easy way, apparently), the rattling persisted and the car would barely idle without stalling. I then revved the engine to 3000 rpm and the rattling went away, but the engine stalled immediately afterwards. Now when I try to start the engine it will not go above 500rpm at full throttle and it dies as soon as I let go of the gas. I removed the new m44 tensioner and noticed that it was still uncompressed. That's the full story as far as I can recall, and I'm not sure where to go from here so I hope one of you can give me some input. Any help is appreciated. I'll post a video of what the car sounds and looks like soon. Thanks guys!

9

Engine management / Low Idle and Stalling issue

« on: April 14, 2013, 05:35:53 PM »

Howdy guys,
 I'm new to this forum, so first ill introduce myself by the car I drive: a '92 318i vert. For the past couple months I've been trying to hunt down the same problem in my car represented by the 1222 code. The car cranks but will not start unless i give it gas, and its gotten to the point where it will die as soon as I let off the gas (this used to only be the case as it warmed up but now even warm it will die). I also have white smoke coming out of the exhaust. New spark plugs, injectors, fuel pump, fuel filter, and I just cleaned the TB and ICV. I don't think there are any vacuum/intake leaks either, but I may have missed some. Where else do y'all suggest I look?