i just finished replacing the timing components(all of them guides sprockets etc). have everything back to get car cranks but no start i have fuel and spark. A little background info on the car i picked it up becuase the prev owner thought the timing chain broke but what really happened was the tensioner failed. car wasnt out of timing when i removed everything. I have the locking tool and flywheel bolt and everything was put at tdc. car just cranks over not super strong per say and has a wierd noise when its cranking over. Car will just backfire sometimes, any ideas before i pull this one and just get a new one.
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Strategic nw e30 commandOriginally posted by bmwm42 -
You sure it's not 180 out?Originally posted by Gruelius -
thats what im thinking ken im checking with my other m42 to see where the crank should be at tdc. because i can lock the flywheel at two positions and on the engine i locked it at the top position.Strategic nw e30 commandOriginally posted by bmwm42Comment
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not 180 outStrategic nw e30 commandOriginally posted by bmwm42Comment
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I had my cam gears 180 out once. Caused backfiring like you're describing.Originally posted by GrueliusComment
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cam gears are at tdc. wierd thing is this isnt my first time ive done this many times to my engine but this one that i just aquired i have no history on it other than it just died and the mechanic shop saying it was the timing chain that broke(i knew that was bullshit) but i took it apart the tensioner came aparts and the upper and lower guides were fucked and the slide rail was really worn down both where the chain goes over and where the pistion pushes on it.Strategic nw e30 commandOriginally posted by bmwm42Comment
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Do you have a good strong spark?Originally posted by GrueliusComment
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really good bright spark and its consistantStrategic nw e30 commandOriginally posted by bmwm42Comment
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you mightve installed the sensors incorrectly. double check those.Comment
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you dont have to remove the crank sensor to replace the timing chain etc just the cam sensor and you cant really fuck that up but thanks for your inputStrategic nw e30 commandOriginally posted by bmwm42Comment
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ive had this problem before, but i cant remember which part it was. i would have to look at my car first then get back to u. maybe it's that?!Comment
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there is nothing electrical you have to remove besides the spark plug cables and the cam sensor so you really cant fuck anything up plug wires are numbered etc, trust me ive done many timesStrategic nw e30 commandOriginally posted by bmwm42Comment
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Have you checked compression yet?Comment
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Not yet but by the soundof the engine when it cranks its probably fucking lowStrategic nw e30 commandOriginally posted by bmwm42Comment
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Spark plug wires in the correct order?Comment
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