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Camshaft Removal
I need to replace the camshaft on my 81 240D and while looking over the instructions in the Haynes manual, I become a little concerned about how to remove the camshaft sprocket. The manual says in classic Haynes vagueness: "Remove sprocket and washer and use a piece of wire to hold tension on the timing chain"; however the method used to hold back the chain in the accompanying photo appears like it would be very easy to allow the chain to slip off either the crank or the IP. I was just wondering if anyone had done this before and had some pointers on the best way to go about it.
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'95 Geo Metro 3-cyl 5-speed '97 Geo Metro 3-cyl 5-speed x2 '81 Mercedes 240D 4-speed manual RIP |
#2
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Answer
Set the engine on TDC.
Zip tie the chain to the sprocket. Remove the tensioner. Make a support to hold tension on the sprocket. Remove the cam bolt/washer. Attach the sprocket to the support. Now you can remove the cam and towers. I prefer carefully removing the sprocket while keeping tension on the chain, then support/tension the chain out of the way. A bit more effort, but it makes it easier to just slide the cam out the front. .
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ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#3
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And remember to loosen the cam tower bolts in the correct order or you'll snap the cam.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#4
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Quote:
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'95 Geo Metro 3-cyl 5-speed '97 Geo Metro 3-cyl 5-speed x2 '81 Mercedes 240D 4-speed manual RIP |
#5
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Yes, it will work.
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#6
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This is how we did it when we changed the head on the 300SDL.
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