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1981 240d OM616 Injection Pump Timing Is Off?
I have been having trouble with my 240d not starting at all. I got the car from a friend who had the engine recently rebuilt and not starting.
I tried to perform the drip tube adjustment and I reached an interesting conclusion. I set the crank to 26* BTC and pumped the hand pump. Nothing was coming out of Injector Line #1. I verified that the cam lobes were pointing up and they were. And then I turned the crank one more time to 26* next stroke and pumped the primer pump and fuel squirted out. So is my injection pump installed incorrectly? How do I go about removing it and installing it again? |
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Answer
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ASE Master Mechanic https://whunter.carrd.co/ 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 2003 Volvo V70 https://www.boldegoist.com/ |
#3
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It sounds like it's out of time.
You may be 180 degrees off on the timing of the injector pump....make sure the engine is on the compression stroke...
I know because I made this mistake after a rebuild of my 240D...remove the pump, move the engine to the compression stroke and re-mount the pump...and have fun! The Tenor Man
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Currently Driving..... 1987 Mercedes Benz 300D Turbo - Daily Driver. 2004 Buick Rendezvous...Smaller than it looks! 2005 Mitsubishi Galant - Not bad for a tin box...Lousey Seats Past Vehicles..... 1994 Dodge B-250 Van- GAS HOG..Succumbed to rust! 1989 Mercedes Benz 260E - Totaled but no one injured. 1977 Mercedes Benz 240D - Loved it, but SLOWWW! - Succumbed to RUST! 1976 Mercedes Benz 240D - Same as above! - 1975 Mercedes Benz 240D - Same as above! |
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It does sound like it is off 180 degrees. Who rebuilt the engine and installed the injection pump?
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Quote:
Doh, As I remember it did run, sorta, well barely
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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Yep, I have done it also on few Fuel Injection Pumps and a few more Ignition Distributors.
You get in a hurry or distracted by something and do not pay attention to what you are doing.
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84 300D, 82 Volvo 244Gl Diesel |
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I put a distributor into my 6 cylinder chevy pickup truck once... and it would start and idle...
that was very bad that it started.. prolonged finding that it was 180 degrees off by several hours... much better if it had not started at all... basic things can really mess you up fast.... LOL
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
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