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#1
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1985 300sd cranking question?
To try and keep a long story short, I have a 1985 300sd and a 1984 300sd. The 1984 starts up fine. The 1985 will not start unless you cycle the glow plugs at least 2 times and I am talking full time even after the glow plug light goes out I watch the dome light brighten then crank. I have replaced the glow plugs, and noticed that they were hard to remove. Could carbon build up cause this problem? Note both cars have about the same mileage 325,000. I did not have a reamer, but if I did use a reamer, where would the crud fall? Suggestions and comments welcome. Thanks
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#2
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What brand GP? Have you done a valve adjustment lately?
Yes, carbon can act as an insulator, causing premature GP failure and keeping the cylinder from heating up fully.
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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. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#3
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You can do like I did,take a old glowplug.Hammer a flat end on it.Grind it to where it sharp,but only .030 oversize standard glowplug.Gently screw it in,you may have to force it, to break carbon.And unscrew,then turn engine over a couple of times to blow out carbon.Remmember size of your reamer should not be as large as threads.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
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