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#1
09-22-2006, 02:53 PM
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'75 240D starter? problem
I'm working on a 75 240D with the separate ignition switch and starter switch (salt shaker glow plug indicator). I cannot get the starter to turn over the engine. Battery is new, correct for car and fully charged. I've replaced the starter and it had no effect. The glow plug indicator will glow but when I pull the switch to the start position, all lights and indicators go out. I've hooked up a remote starter switch to the + battery terminal and the small starter electrical connection and can hear the solonoid clicking on and off, but the engine still doesn't turn. I can turn over the engine manually (I jacked up a rear wheel, put the transmission in 4th and turned the wheel, which turned the engine.)
The problem started intermittantly. The car would be turned off and a few minutes later would not start. We would wait awhile and then it would start. Now it doesn't start at all. I'm now at a loss for ideas......Any suggestions? Thanks! Scotty 
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#2
09-22-2006, 06:02 PM
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hit the starter once or twice with a hammer and then try it. My W115 240D needed the hammer periodically. After the starter got the hammer, it usually behaved for a good 6 weeks more.
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TXBill Former owner of a few diesel MB cars 1998 Lexus ES 300 In Chicago We Trust
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#3
09-22-2006, 06:31 PM
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I had an old Chevy that would do the same thing when it after running on the road for an hour or more. Turned out to be heat related, and a new starter solenoid fixed it right up.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D
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#4
09-22-2006, 08:01 PM
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I had a similar problem with the W115 300D. Check the relays on the left side intake manifold that are on that silly bracket.
If you try to jump the starter by touching it with power does it crank?
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1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power! 1977 6.9 3(A) - 84k
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#5
09-22-2006, 08:29 PM
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Thanks for the suggestions. The hammer was the first try, a new starter and solenoid was the second try. No luck with either. I have power to the starter and can short between the small post (that should be activated with the starter switch) and the larger post (that is wired directly to the positive side of the battery). I get spark and the solenoid clicks, but it will not spin. I have not tried literally running a jumper cable from the positive post to the starter, but I will.
I think I see the relay Diametricalbenz mensions, is it the one on the firewall, under a couple fuse blocks? What does it do and how do I check it? Thanks for your help! Scotty
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#6
09-22-2006, 09:34 PM
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the car has a gorilla knob?
yes? the cable that comes from the knob down along the steering column can get out of adjustment or the rubber isolation blocks can be shot. either way it may prevent the switch from making contact. so no power will go to the starter. follow the cable down to where the business end is and see if all is in proper alignment. ect. good luck tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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