No Start after Full Engine Rebuild

Joined
Mar 14, 2017
Messages
8
So I bought the boat (2007 bayliner with mercruiser 3.0) and it started and ran, had water in the oil so I rebuilt the whole motor. Got everything back in and now no start it turns over just fine but won't start.

The engine builder put in the distributor and said it might be 180 out. So I tried flipping it and still nothing. I seen it was tdc on 1 at his shop and he had it aligned correctly. I'm going to try and reset it tomorrow but could it really be that far out that it doesn't even remotely try and no start? Anything else I should check first?
 

alldodge

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Staff member
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Mar 8, 2009
Messages
43,606
The engine builder put in the distributor and said it might be 180 out.

A builder which says this gives me pause, thinking he nay not be very good at what he does.

That said, check for 12V on the + side of the coil
 
Joined
Mar 14, 2017
Messages
8
A builder which says this gives me pause, thinking he nay not be very good at what he does.

That said, check for 12V on the + side of the coil

I'll check the coil first, I brought the distributor to him last after the valve cover was on so that's the only reason why. He was actually recommended to me as the best boat engine builder around.
 

Dave-R

Chief Petty Officer
Joined
Mar 18, 2008
Messages
441
Is there any chance the emergency stop plug is pulled. I had one boat that would crank but not start with it pulled. If no voltage at the coil, the ignition switch could have a problem. Also if you are getting spark, check and make sure that the wires are in the correct place. Sometimes it is a little confusing, but if you look at the direction of the rotor and you know the firing order you should be able to confirm the wires are in the proper order. To make sure the engine is at TDC on the compression stroke for the the #1 cylinder, I pull the plug on # 1 and put a cork in it . When cranked the plug will blow out. The engine will now be mechanicaly timmed. Your timing mark should read 0 then. Also the rotor should be on the #1 spark plug wire. Hope this makes sense. I'll bet it's something simple. Good luck Dave-R
 
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