560 SL Best years?? Timing chain questions, help buying - Mercedes-Benz Forum

 
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post #1 of 10 (permalink) Old 01-22-2010, 04:41 PM Thread Starter
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Post 560 SL Best years?? Timing chain questions, help buying

Hi!,
I am new to the forum and need some expert help on buying a 560sl.
I have been looking about 2 weeks, dont really know much except what i see on the internet. An area of concern is the timing chain, owners who had it done make a big deal about it... why is that? Are there any years made better then others? what should i look for in making a purchase? Whats the recommended interval for timing chain replacement? I see them going for between 6-10k, with the occasional over 20k.. Help me buy a nice car!
Thank You!
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post #2 of 10 (permalink) Old 01-22-2010, 04:43 PM
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Newest is always best.

At some point the design is changed to double row and problem is fixed.

Kent Christensen
Albuquerque
'07 GL320CDI
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post #3 of 10 (permalink) Old 01-22-2010, 06:05 PM Thread Starter
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Newest is always best.

At some point the design is changed to double row and problem is fixed.
Would you know when that was? I think i exhausted google
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post #4 of 10 (permalink) Old 01-22-2010, 07:53 PM
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Single row timing chains were early in the 380SL. All 560s were double row. Very changes from 86 to 89 - anyone of those years is fine, just find a good one.
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post #5 of 10 (permalink) Old 01-22-2010, 07:57 PM
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Garage
560SL timing chain

All 560SL have dual row timing chain. The chains do not "break" but a piece of broken plastic guide can foul the sprocket and cause the chain to jump the sprocket with disastrous results.

Although the chain is robust you should still change the chain guides, tension slipper and cam oiler fittings at about 100k miles. That job is doable by a DIY owner and the chain stretch can be inspected at the same time. I changed my plastic innards at 86k miles but did not replace the chain. Found a crack in the left side upper chain guide.

If you choose to have the job done at a competent independent shop, cost is in the $1000.00 dollar range, lower without replacing the chain.
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post #6 of 10 (permalink) Old 01-24-2010, 10:34 AM
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Do the chain, oil tubes, tensioner, rails and gears at 100,000. Always replace as a set. My 560 SEC with mobil 1 ,was 10 degrees out when I did it, so the chains do stretch.

Bought a perfect 1989 560SL with 20,000 miles Cabernet and grey for north of $31,000 in July. As I said it was perfect.

John

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post #7 of 10 (permalink) Old 01-25-2010, 09:44 AM
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I think you ought to consider doing the plastic guides on an age basis maybe around 20 years. I did mine with only 40,000 miles on the car, but they were 20 years old. They all came out okay, but who knows how long they would have lasted? They might have made it to 100,000 miles - I just wasn't ready to take that chance. I did not do the chain though, only the guides.

Len
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'88 560SL 41,000 miles being parted out - https://sites.google.com/site/mercedesstuff/home
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post #8 of 10 (permalink) Old 01-25-2010, 10:52 AM
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Quote:
Originally Posted by streetcycling View Post
Would you know when that was? I think i exhausted google
Actually all 560SLs had the double-row setup. The single-row came only with early 380SLs. That said, there is a large school of thought out there that preaches preemptive timing chain replacement around 100K. I suppose it's a fairly cheap insurance policy.

Felicita e un bicchiere di vino con un panino.
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post #9 of 10 (permalink) Old 11-23-2010, 10:45 AM
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When to replace timing chain on 88 560sl

Hi folks... I recently purchased an 88 560 with 75,000 miles on it from a dealer. The dealer did all the standard maintenance on the car and in addition fixed some other issues (new brake pads and rotors, new electrial switch for driver's side window, new motor mounts, various new belts, and a few other items). However, they did not replace the plastic guides for the timing chain. My own mechanic recommended that I should just go ahead and replace the guides, belts, etc any way..and at the same time since certain things have to be removed to replace the timing chain guides/belts...he would also do some other work (I think it had to do with gaskets/valves). My question is....on this site, it appears that the timing chain guides/belt should be serviced at around 100K -- my car only has 75K. Should I go ahead and do it now despite the fact that things are fine -- or should I wait. Thoughts on this are much appreciated!!!! thx.
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post #10 of 10 (permalink) Old 11-26-2010, 03:59 AM
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Quote:
Originally Posted by hockeyp21 View Post
My question is....on this site, it appears that the timing chain guides/belt should be serviced at around 100K -- my car only has 75K. Should I go ahead and do it now despite the fact that things are fine -- or should I wait. Thoughts on this are much appreciated!!!! thx.
If you're OK with spending that money at 100K, why not do it at 75K? At least you'll have it out of the way.

Felicita e un bicchiere di vino con un panino.
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