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#1
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W124 602 Timing chain R&R procedure question
Hello,
I need to change the timing chain on my 1991 W124 602 . I have all the tools... but I would like some real life input on procedure... 1) I will be using the timing chain retainer at the cam gear - Do I need to remove the timing chain tensioner or do I just cut the old chain and carefully wrap the new one down arround with everything tensioned ? Any other tips or input would be greatly appreciated thank you |
#2
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before you cut the chain, you should remove the tensioner.
After that, it would not really make a difference, but you might as well leave it out. Then, when you go to connect the new chain, it should be removed as well. ----moral of the story: leave the tensioner out. You are responsible for pulling up the slack of the chain as you wind the new chain in. Last edited by jt20; 10-31-2010 at 05:48 PM. |
#3
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Thank you...
also the OE instructions state that procedure dictates removing the fan/clutch is this necessary or can it be left on ? |
#4
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Not sure how much room you have in the w124. But if you can turn the crankshaft by hand with it in place, props to you.
I think mostly, it facilitates removal of the fan shroud if you don't have the split design. Someone else should have a better answer. |
#5
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Chain R+R
'Can be done without removing the Fan And Clutch.
It's just easier without them in the way. Your main concern is "Keeping your Engine Timing". http://www.peachparts.com/shopforum/search.php?searchid=5267502 I'd be Looking at the Sprockets for both the Timing Chain and the Oil Pump Chain.(Worn/Damaged sprocket teeth exacerbate chain wear.) http://www.w124performance.com/images/OM603_timing_cover/ These are pictures of GSXR's OM603's (602 with an added Piston) Timing Cover replacement:
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'84 300SD sold 124.128 Last edited by compress ignite; 10-31-2010 at 06:12 PM. |
#6
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I had the injectors out and the motor turned alot easier and smooth. Just a thought.
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#7
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Consider also removing the vacuum pump.
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#8
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Recycled
for new member
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