Author Topic: 250 turns over but just won't start  (Read 3232 times)

Neal

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250 turns over but just won't start
« on: May 15, 2009, 03:38:14 »
The car which is normally difficult to start, won't catch and run. I can turn it over and it starts to bite and chug but will not run. We looked at the cold start and it works, all the plugs are clean, there is good spark and the fuel is running well. The fuel pump is only a year old and sounds great. What next before having it towed to the shop?

waqas

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Re: 250 turns over but just won't start
« Reply #1 on: May 15, 2009, 14:01:45 »
Some random suggestions:
  • Spark plugs may be clean, but are you getting good sparks from all plugs?
  • Are the spark plug wires connected in the correct order?
  • Have you inspected the distributor?
  • Sometimes, if the injector lines have been disconnected, it takes many many cranks for the injection pump to refill them with fuel.
  • Are you getting good compression in all the cylinders?
Waqas (Wa-kaas) in Austin, Texas

ja17

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Re: 250 turns over but just won't start
« Reply #2 on: May 15, 2009, 22:11:39 »
Hello,

Add some more fuel to the fuel tank.  If you have sediment in the tank the car will starve for fuel when it gets down to about 1/2 tank of fuel.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

Allenh

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Re: 250 turns over but just won't start
« Reply #3 on: May 15, 2009, 22:52:25 »
For what its worth, If you have am M129 engine, some otheres too, the crankshaft markings for timing will probably br dual and about 30 degrees apart.  If you static timed it with the wrong set, you could find yourself where you are.  Ensure you are timed correctly.

Allen