I heard some knocking when trying to start my 95 740i, then nothing. After many days of tracking codes, spark and fuel system checks, I removed a valve cover and found the timing chain has jumped about three damper wheel sensing tooths. Is it possible to to relieve the tensioners and move it back without removing and tearing down the engine? If it must be removed, what do you think the cost would be to put it back in proper time,as that's just too much work for me. Also, I wonder what caused it to start with and would that just reoccure?
do a SEARCH for username plik as he just had an issue with his timing chain.
BMW made working on your timing chain very easy.
To start, you can remove the chain tensioner without even having to remove the upper chain cover.
Number 20 in this image.
But even if you had to remove the entire chain, you can do that without even having to break the head gasket seal. Just remove the covers, they have their own gaskets, separate from the head gasket.
However, tgedeon1, you should post some pictures of your engine with the valve cover off so we all can see what you're seeing.
If you do need to adjust your timing chain, then there are several special, BMW tools that you would need in order to do it (like tdc pin, camshaft jigs, etc.). To correctly adjust your timing chain you would need about $700 worth of new tools.
Now, if you really want to do that yourself, then I can send you the BMW mechanic's TIS software, it will give you the procedures for it.
But I say just tow your girl down to an indy and let him do it right.
Here is a list of BMW mechanics in Florida, http://www.bimmershops.com/bmwshops/florida/
And here are some misc images from my own engine.
Last edited by plik; 02-25-2007 at 01:29 PM.
The pics you showed were the 6 cyclinder ratther than the 8 clcylinder M^). but, I do agree that I want to find someone to do the work as I just don't have the time, even though I have the faciliites. I just don't know how difficult a jot it is. It this one where you just buy a used engine, or is it fixable at some high but reasonable rate. thanks for the references on people in my area. Tony
I have a 97 740i and the timing chain needs replaced. Is this an easy job for me and how much accessories do I need to take off to get to the timing chain? Has any one ever just replaced the master link on the timing chain instead of the entire chain? Please advise!
Wow...what happened that would require you to have to replace your timing chain? Timing chain replacement is so rare, you have my curiousity raised to a new level!
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2015 650ix GC (Moonstone/Cohiba Brown) <<~>> 2014 X5 50i (Space Gray/Mocha)
Well I did something really stupid while changing my valve cover gaskets! I forgot to disconnect the battery and the battery terminal made contact with the exposed upper timing chain and and two of the links burned and I don't feel safe without replacing the chain! It seems like a very expensive lesson!
Ah ... a crash course in arc welding.
Again...WOW!
Lesson learned indeed...thanks for sharing. But any DIY'er will...if haven't yet...do something that will cost them either more time or more money than they initially intended. If anything, revealing your mistake my save someone else from doing the same thing. By sharing the good & the bad...all of us DIY'ers learn...that's what makes a forum like this so beneficial...we all learn from each other's triumphs AND mistakes.
Hang in there.
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2015 650ix GC (Moonstone/Cohiba Brown) <<~>> 2014 X5 50i (Space Gray/Mocha)
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1989 BMW 735i Schwarz (sadly, sold) // 1989 BMW 750iL Cirrusblau Metallic // 1998 BMW 740iL Oxfordgrün Metallic // 2000 M5 Carbon Schwarz ///
hi couuld you give me BMW mechanic's TIS software please?i allredy order special tools i just don't know how to used!
so tell me. is their ever a time when we need to adjust the timing chain and replace the tensioner. is this a maintenance issue.
the pics look like an m60 not m62 - no vanos?
please Plik, i am into some trouble setting up my timing chain.please can you send to me the mechanics software so i can ease timing settings?
i will be very grateful if you do.My contact address is mclyjones@yahoo.com.
thanks
Wow, this post has been hijacked how many times?
Perhaps some sort of record...
Also not US-based, but there was a six-cylinder E38 (728i or 730i) I believe and an eight-cylinder smaller displacement E38 (735i) I believe...
I know I will be "corrected" if I'm off...
Hello, guys....
I
Hello, Besty wishes to everyone .....
I need some help with a 528i 1997,,, as I beleive that blow the timing belt if have one or a chain belt...need some help how to replace it.....
Thank you very much for ur help.....
Last edited by jayr101; 05-27-2009 at 02:28 PM. Reason: Automerged Doublepost
plik, can you send me the Tis software too? I got an outrageous quote from my indie, of many years and have decided to do it myself. Milton@miltonjohnson.com thanks in advance
Milton 2000 BMW 740il
Ok so here's what's going on I'm in the market for a car I have allways loved bmw's since I drove my cousins 2002ti I was pretty set at buying a 1998 740i i have been looking at I've read post on here that its not a good choice unless you have deep pockets should I rethink getting it I'm not a rich man what does anybody think of the 5 series
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