Aq170 starting system wire diagram

[Leedanger]

Happy holidays everyone. I’ve got this project boat with a Volvo penta AQ170 B30 engine. The previous sucker that owned this undid all of the wires under the dash and I’m having a harder time putting it all back together then I anticipated. Went to use the old IBoats library and it’s down so if anyone either has the manual to this or a basic wiring diagram I’d be appreciative. The key switch has 5 posts on it 4 of which are labeled: ignition, acc, bat, ground
ive got a green, Red and green together, two separate reds, and a white. I was just gonna rewrite to a newer style key switch but I believe that will take out my alternator if I remember right. Anyways..thanks again.

 

[alldodge]

I have the AQ series wiring diagram but unable to upload due to IE11. If they ever fix it, will upload.

 

[alldodge]

Key switch shows 4 positions

Pins go to main harness connector
50 - Ivory (white) 9 AWG [Start]
30 - Red 9 AWG [main power in from bat]
15 - Green 15 AWG [coil run circuit]
Pin goes to gauges and warning light
54 - Green 15 AWG [feeds power to gauges, ACC]

 

[Scott Danforth]

follow AD's advice here, the B30 engine for some reason did not follow the standard ABYC colors. and you have to follow the schematic

 

[Leedanger]

Key switch shows 4 positions

Pins go to main harness connector
50 - Ivory (white) 9 AWG [Start]
30 - Red 9 AWG [main power in from bat]
15 - Green 15 AWG [coil run circuit]
Pin goes to gauges and warning light
54 - Green 15 AWG [feeds power to gauges, ACC]

This is about what I had it narrowed down to. I got it to crank and I have + at the coil with the key on. Not sure if I have the alternator circuit wired right yet but I did get engine to pop with a little ether. Gonna work on getting er running without life support then I’ll revisit cleaning up these wires. Thanks again.

 

[Scott Danforth]

View attachment AQ series wiring diagram.pdf

Courtesy of AllDodge

 

[Leedanger]

Fantastic. Cheers