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83 300SD - no start
I'm trying to get the motor to fire on my parts car. The motor is the main thing I want on it, I plan to swap it into my truck later. Anyway the car has sat for nearly a decade. "Ran when parked" of course. I disconnected the fuel lines from the tank and have the fuel circulating from a bottle connected right at the pump. Diesel leaks out when I prime the fuel pump, which may be a problem, who knows. As I turn the engine over, diesel does seem to go through the system (or at least it comes out of the return line above the primary fuel filter). There's no air filter in it so I'm pretty sure that it's getting air to the cylinders. Typically with cars I do the "fuel, air, spark" check but I honestly don't know what the equivalent of spark is for diesels. My 190 sat for a long time before I bought it but it fired up as soon as I tried to crank it. Since this one won't fire I'm at a bit of a loss. Any troubleshooting tips?
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2010 Mercedes E350 4Matic - 77k miles 1986.5 Nissan D21 V6 4x4 - 276k miles 1987 Mercedes 190D 2.5 Turbo - 3??k miles 1983 Mercedes 300SD turbo parts car 2017 Honda CBR500R - 15k miles 2016 Suzuki GSX S1000 - 9k miles |
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Quote:
Dkr. |
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can you blow some propane or WD-40 into the intake? Seems to me I’ve heard that’s a safe way to get one to run, but I’ve been wrong before..
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Thanks guys. I found the primer pump piece, says its an actual Bosch one, got it on ebay for $16. Hopefully that'll sort the issue. I want to hear this thing run before I pull the engine out of it.
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2010 Mercedes E350 4Matic - 77k miles 1986.5 Nissan D21 V6 4x4 - 276k miles 1987 Mercedes 190D 2.5 Turbo - 3??k miles 1983 Mercedes 300SD turbo parts car 2017 Honda CBR500R - 15k miles 2016 Suzuki GSX S1000 - 9k miles |
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When you loosen the Fuel Injection Hard Lines at the Injectors is there Fuel coming out of the.
Is the Glow Plug system working?
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84 300D, 82 Volvo 244Gl Diesel |
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Wd 40 though is pretty much just like diesel and can be used to start an engine with an air bubble in its injection system. You can spray it directly into the intake after removing the air cleaner with no danger. Just keep spraying until the engine will run on its own.
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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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propane works good
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
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I'd adjust the valves and make sure the glow plugs are working before I turned the key. This time of year a fight with a diesel which needs valve adjusted or glowing glow plugs is fruitless and puts way too much work on a starter, imo.
Installing the primer pump was a good start.
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84 300SD 85 380SE 83 528e 95 318ic |
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Diesel equivalent of gas engine spark is the glow plug and compression. Problems with either one can cause a no start.
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John 5:25 |
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All good information to know. I've got some WD-40 laying around. I'll try some of that if I can't get it to turn over. It's been in the 60s (F) the last few days here in AL so I figure it's not too cold even if the plugs aren't warming to maximum. I'll read up on adjusting the valves and how to check the plugs though just in case.
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2010 Mercedes E350 4Matic - 77k miles 1986.5 Nissan D21 V6 4x4 - 276k miles 1987 Mercedes 190D 2.5 Turbo - 3??k miles 1983 Mercedes 300SD turbo parts car 2017 Honda CBR500R - 15k miles 2016 Suzuki GSX S1000 - 9k miles |
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apparently the propellant in WD-40 used to be propane, but is now carbon dioxide.
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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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so does a diesel still run on it?
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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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