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  #1   IP: 174.196.195.207
Old 07-23-2022, 05:38 PM
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68PearsonRenegade 68PearsonRenegade is offline
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Engine will not crank, even with ignition hand button.

Dropped in another A4 into my boat. 2 battery system, brand new batteries. Perko 1,2,both switch, link 10 monitor on a shunt, and a solid state isolator. It's a simple 2 battery system that I think I have my head wrapped around. Problem is the ignition switch does nothing. To troubleshoot this I got a push button ignition switch and attached it to the correct terminals. I heard a very faint clicking noise in the solenoid but it barely reacted to getting power. Seemed like it wasnt getting much power at all... scratching my head big time on this one. I'll draw up a schematic on the system and post it later.
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Old 07-23-2022, 06:12 PM
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Troubleshooting 101, first step at the source.

What is the voltage at the battery posts at rest? Same test, same place when the starter button is pushed?
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Old 07-23-2022, 06:36 PM
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Thank you for that. I busted out my multimeter copy of this old boat and reread the electrical section. I'm sitting in front of the engine now and battery tested 12.6, starter terminal tested 12.6, push button ignition switch test under 1v when pushed.. so that's an issue. The solenoid is indeed getting basically no power when the circuit is completed. How should I go about troubleshooting this? From my understanding I have an open circuit/bad ground somewhere in the circuit correct?
Thanks again, as always.
I really really look forwards to posting a video of this engine running like a top in here.
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Old 07-23-2022, 06:41 PM
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Did you take the voltage tests at the battery posts like I asked? There's a reason for it.
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1977 Catalina 30
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prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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Old 07-23-2022, 06:49 PM
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Bad crimp or wire connections
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Old 07-23-2022, 06:50 PM
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Sure did. The posts read 12.67
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Old 07-23-2022, 07:20 PM
Dave Neptune Dave Neptune is offline
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Do you have a nice big fat ground strap on the motor to the batteries negative side?

Dave Neptune
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  #8   IP: 104.174.83.118
Old 07-23-2022, 08:25 PM
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Quote:
Originally Posted by 68PearsonRenegade View Post
Sure did. The posts read 12.67
Excellent. As Antibes said, your problem is in the battery cables or their terminations/connections, either positive or negative or both. This includes the battery switch connections and possibly the shunt.
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