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#1
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Chain Stretch 617 with pictures & questions
Check the chain stretch on my 1983 300D. looks like it's about 13.5 ATDC. Then I took off the cam sprocket to see if there's an offset woodruff key.
Questions, I think I measured correctly, but another set of eyes is appreciated. Should I put in a 4 degree offset key? Also looks like I need to remove cam gear to see if it's already offset.
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Closing the store Benzbonz.biz on your smart phone or tablet. |
#2
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Did you repeat this procedure several times and get the same number?
If so then yes you would need the 4 deg offset key. I just did this same thing last night and my junk yard motor came up at 9 deg atdc every time .... i even relashed the valve and then removed the lash and repositioned the dial indicator cause i couldn't believe it.
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1987 300D 180k 1985 300SD 330k Helga 1992 300D Lola 269k- Sold 1986 325 coupe Bessie >300k Original engine(ODO Broke) sold 2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it |
#3
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Before others sign off on the results..
can you post a description of the EXACT and TOTAL procedure you used to find those results ? Isn't there a number which must be factored in after all the measurements have been taken? IF yes, what is it...and does it need to be added or subtracted ?
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
#4
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Wouldn't that 0.001" indicator need to be converted to degrees?
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#5
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^^^^^^^^^^^^^^^^^^^^^LOL!
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#6
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you laughing at my dirty engine?
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Closing the store Benzbonz.biz on your smart phone or tablet. |
#7
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Procedure:
1. Remove valve cover after disconnecting throttle linkages etc. 2. point the number 2 cam lobe in the upright position. 3. Position dial indicator vertically on the valve retainer so that there is amble range going DOWN. 4. Turn engine via Crank socket (27mm) with ratchet (really easy if down slowly. 5. keep turning the crank until indicator moves 80/1000's 6. Clean off timing mark 7. take reading. 8. Verify # 05 cam 9. Check reading against specs (9 for a new 11 of 20KM) So is my 13.5 acceptable or should I offset the key? (I only plan on driving this car this summer.
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Closing the store Benzbonz.biz on your smart phone or tablet. |
#8
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Pls provide a good pic of the full dial on your gauge.
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#9
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At 13.5 degrees that thing would be running like crap, or would have snapped the chain.....
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#10
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Quote:
4.5 degrees is not bad a reading is it? certainly it's off, but not terrible... |
#11
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I'm confused. Pay no attention to the man behind the curtain!
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#12
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Quote:
http://www.peachparts.com/Wikka/OM617TimingChainStretch Also, you didn't give enough information on your engine to determine if you need an offset key. So, which of the engines below is yours? Quote:
Of course you need to do it again following the right procedure. Do it twice to make sure and check the cam sprocket alignment just for giggles. Danny
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1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination |
#13
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Quote:
2a Remove Valve Lash. I adjusted the valves, boy were they sloppy, but the still had issues at idle, so I pulled out the old "pop" tester and the injectores popped at various readings. and the spray pattern was bad, so I took 5 injectors from my last WVO vehicle and installed them, what a difference in the idle. much smoother and better acceleration.
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Closing the store Benzbonz.biz on your smart phone or tablet. |
#14
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Quote:
Your 13.5 reading is 2.5 degrees late. I wouldn't bother with a Woodruff key..........too small to worry about. |
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