1985 Chevy Impala no spark

1985 CHEVROLET IMPALA
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STONECLD303
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Engine Mechanical problem
1985 Sunrunner Boat V8

Hi this is actually a question about my boat engine which is a small block chevy. So here is my problem the other day I went and basically did a tune up. I have a 1985 sunrunner with a merch crusier 260 with a thunderbolt electronic igniition. So what all have I done you ask? Ok I changed the Cap, Rotor, Coil, and plug wires I did not do the spark plugs because I could not get to them and did not feel like taking more things apart to get to them. So I did the cap,rotor,and wires then tried to start the engine and got nothing just cranking. So I thought maybe I messed up on the firing order so I checked it and it was fine. So then I thought ok maybe the coil went bad so I went and bought a new one and tried to start it again and still nothing just cranking. So I went and got a spark tester and hooked it to the coil and what do you know no spark from the coil I even hooked the old one back up and got the same resault. I looked over all the electrical wires in the engine capartment and they all look just fine. I just cant seem to figure out what the problem could be it has my head spinning. Any help would be really nice at this point. Thank you
P.S. I would also like to add that all the parts were ordered online for this engine and for this ignition system. The boat had a hard time starting before I worked on it but now it just wont start.
Dec 5, 2009 at 10:24 AM
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RASMATAZ
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Check the distributor pick-up coil and the ICM in the distributor
Dec 5, 2009 at 10:29 AM
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STONECLD303
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ok it has what I think is called a pass through Rotor. Let me try to explain this it has what looks like a normal rotot button but it has a alum. base with like notches in it screwed to the bottom of the rotor. This alum. base passes by this I guess you can call it a sensor I have checked this part and it had corrosion on it so I lightly sanded it and still have no spark. I have tried to take this sensor out of the dist. but cant seen to get the angle just right and did not want to brake it.
Dec 5, 2009 at 10:54 AM
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