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#1
03-10-2006, 02:21 AM
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M119 Timing chain question,Do the plastic
 guides break on these like the M117. From what i read a small plastic part on the M117 breaks and goes under the chain. This gets caught under the cam gear lifting chain and bending the valves.also on the M117 a very loose chain will wear through one valve cover. Does the M119 share these problems. I get a little rattle on start up,and will check the chain stretch soon. Waiting for back to heal from fusion. Worry that a small broken piece of plastic could cause so much grief. Just wondering about M119, some people say these chains last forever. This concerns 92 400E  Thanks  Rich 
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88 300E White, sold 9-04 88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04  92 400E White,Grey Sold 5-06  90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor  1991 300CE White,Grey 1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car
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#2
03-10-2006, 02:57 AM
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Yes, most notably the drivers side chain guide. Change them all and be rewarded with bliss while driving your Mercedes.
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Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
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#3
03-11-2006, 05:02 PM
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Thanks for the reply. Looking at the work involved in doing all the guides,this may be more than i would like to tackel. This motor has a lot of guides. Is the drivers side chain guide the one that sits between the two cams on the left bank? Is it worth changing the chain guides that sit between the camshafts on each head or is there another guide that normally breaks. One that would send that piece of plastc under a chain gear.Book time on all guides is 24 hours
,so you can see why i am loking for a easier wayI know that any part could break after a lot of miles, but i am looking to change only the part that has the potential to bend the valves and is a normal high wear item. Hope this makes sense. Of corse rolling in a chain at the same time. These questions are because i did all the guides on my M104 motor and found the guide in the crankcase to be like new. Old part looked like the new,almost better quality than the new.These were mercedes parts also.Had that cover off for a leak as that chain does last almost forever on the 104.Hope i did not loose you Thanks Rich
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88 300E White, sold 9-04 88 190E Black 2.3 sold 90 300CE White, Grey sold 12-24-04 92 400E White,Grey Sold 5-06 90 300CE 91K Signal Red,Black Sold 2007 1989 300CE Smoke silver,Tan Sold 1-08 1993 300E 3.2 M104 motor 1991 300CE White,Grey 1994 E420 beautiful car,gone to new home 1994 E320 Smoke an Parchment.Beautiful car
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