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#2
02-07-2007, 08:08 PM
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I have 268K on mine and I have no idea if or when it was last changed... but mine is just a $1000 car that I have already got my moneys worth out of. I am guessing that mine was changed somewhere around 120-150K by the original owner, as they owned it up to 200K.
I think if yours is original and as nice as it sounds like yours is.... I would change it posthaste.
__________________
2004 Toyota Sequoia Limited 4wd 1991 Lincoln Town Car Executive 1991 Cadillac Sedan DeVille 1988 Mercedes 300SEL 1972 Chevrolet Caprice Kingswood Estate 9-passenger wagon 1973 Pontiac Grand Ville (Prior MB's: 1974 240D, 1985 380SE, 1984 190D, 1993 400SEL) 
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#3
02-07-2007, 10:16 PM
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The chain is not the problem per-se, it is the plastic guilde rails. With age they will deteriorate and could break with pieces making their way under the chain between it and the cam gear, particularly on the left side. Then you have big, big problems. The guide rails should be changed about every 10 years regardless of mileage. The chain will elongate but almost never break...but to change the rails you do 90% of the work to replace the chain so you might as well do it as it is only $100 extra and you won't have to worry about elongation of it again for another 100K miles.
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz 
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#4
02-08-2007, 03:21 AM
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Change the guides, chain and tensioner - cheap insurance!!
Cheers
__________________
1988 W126 420 SE beware of fundamentalists!
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#5
02-08-2007, 08:20 AM
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Thanks
I will be changing these items in the next 30 days. Anything else that you can think of at this juncture? The car really is mint and I want to keep it this way. I have wanted a 500sel for a long time and I finally have it. Thanks again.
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#7
02-08-2007, 10:18 AM
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Its not worth screwing with it, just change it.
__________________
1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#8
02-09-2007, 06:02 PM
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Chain life...
As nhdoc mentioned, its the guides that'll get you and I think you're on borrowed time. Its heat and age that do it.
If you can't do it real (real) soon, at least listen for unusual/louder engine noise at first start. If it makes a metallic slapping noise at start up, I wouldn't run it for a minute. Shut mine off because of this noise - had it towed and, sure enough, broken upper rail (at 97K miles). Probably would have lost it had i driven the 4 miles... Kevin
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"Dangerous with a wrench...and not smart enough to know it" Stable (in order of acqusition): '84 500SL, 280SEL (Euros) '77 280SE. '90 560SEL '79 450SEL 6.9, '95 C280 (totalled by daughter 8/07) '81 280SL (rescued) '88 300CE '86 560SEC '95 C36 '01 CL55 DD's: '04 S500 4Matic (SWMBO) '04 F150 Crew
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#9
02-10-2007, 12:46 AM
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I do not have that "slapping" noise, but I have a "ZZZZZZT" sound from the engine bay, as the oil pressure needle goes up when I first start it. It stops as soon as the needle reaches "3", which is very quickly. It does it for about a second. The warmer it is outside, the less it does it. I do not recall it doing it when temperatures are above 80°. No idea.
@ any rate, if I had a nice MB like it sounds like he has, I would not run it for a second W/O a new chain/rails/guides. When you "price" getting this done, be sure you ask how much more for the rails and guides and tensioner. I was told $500 when I asked about the chain replacement, but when I asked how much more for the rails and guides, the price went up about $300, because he said much more work was involved in replacing those.   I think that is what steered me away from having mine replaced.... I was all ready to pay the $500, but that additional $300 was the kicker. I paid $1000 for the car and I was not about to pay $800+tax for this. Quote:
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#10
02-14-2007, 01:39 AM
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Keep us posted.
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timing chain
Linear Mode
