I have a 91 300zx non turbo. i replaced the water pump and now wont start. i checked the timing and relpaced the belt with one with lines on it to line up with timing marks...Timing is on point. new spark plugs. all coils getting spark. all fuel inj work. new cam angle sensor. Please help. [email protected]
Are you sure the new belt didn't jump time? How was the belt tensioner when you replaced yhe belt? Did your water pump leak onto or into your crank sensor?Are you sure you have proper fuel pressure?When you replaced the timing belt, did you make sure to find top dead center on cylinder 1 ? Just lining up the timing marks may not have worked if this is indeed what you did.If you had the crankshaft rotated 180 degrees, your motor would be trying to fire on the exhaust stroke, instead of the compression stroke. To find T.D.C. disconnect your battery,rotate your crankshaft until the piston that is marked #1 in your firing order is at the top of its stroke, this can be accomplished by carefully inserting a wooden or plastic dowel into the sparkplug hole of cylinder#1. The dowel will rise with the piston and at the point where it starts to fall will be T.D.C. Now your timing marks should line up,and you will then be on the compression stroke. good luck! hope this helps
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Crank sensor? Do you mean crank angle sensor? There isn't a sensor under the water pump.By the way, I appreciate all the help. I might be off on the TDC, I set it at the very top of the stroke. Not on the fall stroke. i guess I could be off a hair and cause problems like this. I just read another thread about another guy who had the same problem and he cleaned all of his sensors with spray and a wire brush and the worked.
I can't even get anything to fire. its just sounds like a elertric car running. Im a car guy and this makes me feel like im a nerd who has never even changed a tire...
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