Elecrtical question

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    want to eliminate your headaches, replace the engine harness. they are still available for SBF, and small block chevy carb engines. basic marine wire harness with all new ends. tinned wire and rubber covers. these harnesses on some of these pcm engines are 50 years old or better. one of the reasons i hesitate to work on older boats is because of how i usually find the wire harnesses in them, worn, been in the bilge,bent dry rotted and poor conductivity. and as usual lots of side cutters and automotive or household connectors in the mix.

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Fl Inboards Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Grand Poobah Joined: January-20-2008 Location: United States Status: Online Points: 2114	Post Options Post Reply Quote Fl Inboards Report Post Thanks(0) Quote Reply Topic: Elecrtical question Posted: Today at 3:35pm
	want to eliminate your headaches, replace the engine harness. they are still available for SBF, and small block chevy carb engines. basic marine wire harness with all new ends. tinned wire and rubber covers. these harnesses on some of these pcm engines are 50 years old or better. one of the reasons i hesitate to work on older boats is because of how i usually find the wire harnesses in them, worn, been in the bilge,bent dry rotted and poor conductivity. and as usual lots of side cutters and automotive or household connectors in the mix.
	Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise. 1993 Shamrock "fat" 20. 2008 Nautique 196 5.0

75 Tique Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Grand Poobah Joined: August-12-2004 Location: Seven Lakes, NC Status: Offline Points: 6129	Post Options Post Reply Quote 75 Tique Report Post Thanks(0) Quote Reply Posted: Today at 11:38am
	I've been chasing gremlins for a while now. Per my earlier post, I think its mostly carb issues. I've had it apart cleaned it put it back together a few times, including new components from a kit that you can reach by removing bowls. i've had mixed results. Sometimes runs rough all the time, sometimes runs good but surges at idle, sometime runs good every way but then doesnt. Anyway, carb is a work in progress. I'll get it. But while doing general trouble shooting, a friend who is pretty good at these things said my dirty greasy plug wires could be arching. I cleaned those up. (havent run at night to look for arcing) May get new wires. With all my carb fiddling, it had been running real rich, so all my plugs were crispy black. Put new ones in. Now my question. He suggested a general electrical survey. 12+ volts at battery. 12+ volts at solenoid. But 10.4 volts at coil. (electronic prestolite, so no ballast resistor.) So it appears somewhere between solenoid and coil (like around the key?) I've got a voltage drop. If its been there all along, but has run fine with it. If voltage drop is new, maybe contributing to problems? I really dont feel like tearing dash pod out, but is that 10.4 V at coil worth tracking down? One other question, back to carb. Current situation, runs pretty good at higher rpm. Serious surge at idle. Putting mixture screws all th way in does not kill engine. I've cleaned carb body and metering block passages a million times, so I dont think its dirty passages anywhere. Any other ideas?
	_____________ “So, how was your weekend?” “Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”

Elecrtical question

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