Wagon won't start
07-12-2009, 11:48 PM
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1992 300TE 4matic wagon
Wagon won't start
'92 w124 300TE4matic wagon, M103 engine. I just installed the rebuilt head, new cylinder head gasket etc. Head was set by machinist to TDC on #1 cylinder, flywheel was set @OT (and a visual check of #1 piston). Everything went by the book, except I broke the head free at the intake manifold seals (instead of taking the manifold and FI system off as a unit which the book says to do).
I can crank and crank and no start. The plugs spark fine against a ground. It sounds like the fuel system is pressuring up when I turn the key...but the plugs aren't wet at all after long cranking and no gas spurts out of the top of any injector if I take their individual fuel line off.
The only thing that was touched in the FI system was a fuel line from the top of the fuel distributor to an electric sensor, that positions on a hose to the head. It seems to me, the system isn't pressuring up. If after long cranking, shouldn't I get significant pressure if I crack any fitting on top of any injector?
I'll check compression tomorrow, because I did replace the timing chain. Other than the OVP, what other things can I check out? I think I have a gauge somewhere, so I can tie into the fuel distributor for a pressure check.
Kevin
I can crank and crank and no start. The plugs spark fine against a ground. It sounds like the fuel system is pressuring up when I turn the key...but the plugs aren't wet at all after long cranking and no gas spurts out of the top of any injector if I take their individual fuel line off.
The only thing that was touched in the FI system was a fuel line from the top of the fuel distributor to an electric sensor, that positions on a hose to the head. It seems to me, the system isn't pressuring up. If after long cranking, shouldn't I get significant pressure if I crack any fitting on top of any injector?
I'll check compression tomorrow, because I did replace the timing chain. Other than the OVP, what other things can I check out? I think I have a gauge somewhere, so I can tie into the fuel distributor for a pressure check.
Kevin
