540 timing chain guides - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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#1 (permalink) Old 10-28-2013, 03:37 AM
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540 timing chain guides

I have a rattle at startup on my 99 540it with 140k mi changed the timing chain tensioner but didn't help . I guess I need to do the chain guides . my question is , can I do this without moving or messing with the timing adjustments if I don't change the chain? I have read a lot about the timing chain outlasting the engine.
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#2 (permalink) Old 11-14-2013, 06:15 PM
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nounfortunately and if you gonna go and do the guides you might as well do the chain.why you think the guides are bad
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#3 (permalink) Old 11-14-2013, 06:17 PM
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i got the same rattle car has 68k on it,most of the time is the cam followers up top drainded,but that might not be your
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#4 (permalink) Old 11-14-2013, 06:43 PM
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I get a rattle at startup for a few seconds .coming from the front around the oil cap
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#5 (permalink) Old 11-15-2013, 11:17 PM
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Timing Chain Guides

My suggestion, if you believe in the slightest way that you have metal-to-metal contact from time chain guide failure then get them replaced...immediately. If they are failed then you are putting your engine at risk.

I had mine fail at 198K miles in catastrophic fashion. The shop that does my work did a comprehensive diagnostic to ensure that nothing was damaged. If your timing chain cannot keep the engine in time then you risk having a valve contact something it is not suppose to. There was no contact in my case but inspection proved there was visible metal particulate in the oil, circulating throughout the engine and putting other parts at risk. Compression was within 5% of stock thanks to oil changes every 6K miles.

I now have 246K on the engine.

Having the problem properly diagnosed is cheap insurance. I hope this helps.


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Last edited by kmelhorn; 11-15-2013 at 11:29 PM.
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#6 (permalink) Old 11-17-2013, 05:57 AM
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After more study I am confident I can do the timing . I can rent the tools for 75 bucks. I plan to open her up to do the vanos , whcih it needs anyway , from that I can asess the chain guides.
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#7 (permalink) Old 11-17-2013, 09:21 PM
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Good luck with your project. Let us know how it turns out.
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#8 (permalink) Old 11-20-2013, 12:20 AM
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good luck for it i am sure u would enjoy this awesome ride
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#9 (permalink) Old 11-20-2013, 11:38 PM
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Exclamation

Quote:
Originally Posted by mike spare View Post
I have a rattle at startup on my 99 540it with 140k mi changed the timing chain tensioner but didn't help . I guess I need to do the chain guides . my question is , can I do this without moving or messing with the timing adjustments if I don't change the chain? I have read a lot about the timing chain outlasting the engine.
Please follow the instructions:
1: Make sure thetiming mark on the pulley lines up with that on the front cover. The cover has an arrow on it and pulley has OT written on it. Once this is done the 1 piston should be at TDC and you should be able to lock the transmission with a 1/4" short extension. (remove the rubber grommet to get to hole).
2: You will probably need new cam chain tensioners, deflector rail, chain guide and tensioner rail.
3: You will also need timing locks for cams and also for relctor ring in order to properly time cams. Note: cams must be turned ccw in order to properly time them. Continuity test must also be performed on thongs to verify continuity.
4:Ebay the timing set; cost around 250.00.
5: Eye balling can work but it is not recommended.
6: If you need a vanos rebuild kit I have one for your car.
hit me up for more info mike@888-393-5520
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#10 (permalink) Old 11-21-2013, 04:42 PM
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Thanks for the info I plan to rent the cam locks and timing tools 75 bucks . Plan to start in a couple weeks . I need to wait till I get the cash for all the parts . Ill post results.
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#11 (permalink) Old 01-08-2014, 10:07 PM
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Thumbs up Update!

Hello Buddy,
How things going with the ride? If you need any parts, just let me know. I can get u new or used depending on wahtyou are looking for. I also offer rebuild motor services as well... Good luck on the repair!
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#12 (permalink) Old 04-22-2014, 12:28 AM
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Well

I will add this ...not much different from what others have said. First if you have replaced your tensioner and didn't get the results you expected.Stop driving the car. Do not even start it until the guides are done. If it gets worse you may not have the opportunity to respond resulting in catastrophic failure (junk engine).

I am just putting my 99 - 540 back together should be good to go Friday. Don't be intimidated it wasn't built at NASA so you can do it...

Good Luck
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#13 (permalink) Old 04-22-2014, 12:36 AM
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Happy to say the job is complete . Put 900 miles on it so far. No more tapping. No more rattling at startup. Definitely not an easy job but doable if you take your time.
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#14 (permalink) Old 04-22-2014, 01:26 AM
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Mike

Any chance of you removing your engine cover and taking a few photos of the wires and connections under the engine cover? Tomorrow I want to put the injector harness back in and don't remember where all the connections are :-)
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#15 (permalink) Old 04-22-2014, 08:43 PM
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Tis okay

Got it together today...pretty simple
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