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Replaced belts and batteries in my boat yesterday. It's a 97 super sport with the gt 40. Took it out and everything ran fine for about ten minutes then got smoke from the engine cover. My alternator and belt were very hot but my belt was not too tight and my batteries are brand new. I turned the blower on and my perfect pass cut out and came back on when I turned the blower off. My volt gauge on the dash is reading 11 max but my amp has a volt reading coming from the battery and that is reading 13.2 with the boat running. If I hit the horn the perfect pass would also shut off but with my stereo on or my pumps running it would work fine. I took my alternator out and it doesn't smell burnt and there is no play in the bearing. Could my alternator or voltage regulator be bad? I'm stumped
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The wiring from the battery to the helm (dashboard) is barely adequate to run the boat, without any added accessories. I know, there are four accessory breakers, or pushbutton switches, but you really cannot draw much current through them.
I put a double buss bar panel behind the kick panel of my 1997 Ski Nautique. One side of the buss bar goes to the positive battery post, the other side goes to the negative battery post, using 6 gauge wire (cable) between the buss bar, and the battery.
The stereo power amp, and the head unit are wired to the buss bar. My heater motor is wired to the buss bar, through a relay, and that is controlled by the #3 breaker.
The horn is also powered from the buss bar, through another relay. My horn would only occasionally work, if the engine was running, before I made this change. Now, with the relay, and buss bar, the horn works reliably, and I no longer have to clean the contacts in the horn switch to keep it working.
Perfect Pass uses a lot of current to drive the servo motor, for the throttle. The Perfect Pass computer is sensitive to low voltage. If I was running Perfect Pass, it too would be wired to the power from the buss bar, through a relay, being controlled by the purple "ignition on" wire coming off the key switch. -
I understand what you are saying but I had no issues last year. This season my batteries wouldn't hold a charge so I installed two brand new interstate batteries and first time out had this problem. Nothing new has been addedComment
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13.2 is not enough voltage, at the battery. The dash volt gauge is not the most accurate volt meter available.
A common cause of the alternator running hot is it trying to charge batteries fully. Also if the batteries are not fully charged, it puts more drag on the belt, because the alternator drags more to generate the current to charge the batteries. if your belt is slightly loose, that may make the belt run hotter, because it slips more. A tell tale give away of this happening is a black power around the front of the engine.
Once again, the wiring from the batteries to the helm IS NOT ADEQUATE.
Once again, the Perfect Pass control box IS VOLTAGE SENSITIVE, and the Perfect Pass servo motor uses a lot of current to move the throttle to control the speed.
The horns use a lot of current, so does the blower. Turning these items on draws a lot of current through the inadequate wiring from the batteries, to the helm, and with the extra current flowing through the inadequate dash feed wires, the voltage drops below the voltage Perfect Pass needs to avoid shutting off.
If your new batteries get fully charged, the problem may go away. You might also gain something by thoroughly cleaning the battery terminals, and the wiring connections to any battery shut off switches you have.
Remember your boat, just like my 1997 Ski Nautique is 16 years old. There is a possibility the wiring connections have deteriorated since last year, to a point of becoming a problem this year.Comment
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