Questions and Answers

240D Injector Knock

I have a mint '82 4-speed with 120k actual miles (3k mile oil changes since new) that has a heavy metallic knock at idle (all cylinders) and less power than it should (max speed 80 mph). Items I've done: new injectors, valves carefully adjusted, compression check (330~360 psi all), new filters (all), 2 cans diesel purge...all with no effect on noise and low power. I'm thinking perhaps injection timing might be the problem but know nothing about how to check/adjust. Also, the car does not smoke much and has excellent emissions numbers. Any thoughts? Thanks so much for your input! Kurt

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Mercedes 240D won' shut off -adjust idle speed?

I recently bought a 1978 240D so I could run biodiesel. I heard all the warnings, so when it started to get slugish I changed both fuel filters. It runs much better now, and has more power, but when I turn off the ignition the engine won't stop running - even after I remove the key. I tried reducing the idle speed with the key-shaped knob on the dash, but that wasn't enough. Does anybody know if there's a way to change the idle speed under the hood, and how to get to it? Adam

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Did my old 82 300SD jump a tooth?

she drove as normal as you can expect for a 82 300sd that has been run hard and put up wet 300,000 + miles as odometer quit years ago. the 617 had alot of blowby and oil leaks [crankcase press] being the faithfull old girl she was she made it home and wouldnt fire next morning.checked compression below par, less then 300 psi in all 5 holes spining her with 24 volts my questions are #1 how does one check inj.

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