charging system on 115 '87 O/B

[chrisg]

OK, Im making new posts per question on my new engine.

Regarding the charging system: with the engine running, I noticed that the voltmeter on the dash sometimes indicates ~15 volts, and other times, just the battery 12 volts. I have not corallated this with the engine speed yet, but does this sound right? or should there always be a higher voltage indicated when the engine is running? (the batterys - which are new last year, were dead when I got the thing)

Thanks

 

[Barnacle_Bill]

Re: charging system on 115 '87 O/B

You will see an increase in voltage as RPMs increase.

 

[j_martin]

Re: charging system on 115 '87 O/B

You will see an increase in voltage as RPMs increase.

It can be as low as 12.5 volts at full speed if the battery is pretty empty. As the battery charges, it can rise to as high as 16 volts. 14.5 is pretty typical.

hope it helps
John

 

[chrisg]

Re: charging system on 115 '87 O/B

Thanks, so it sounds like the charging system is working, well thats one less thing to worry about. Now to figure out the other issues with the motor!

Thanks for your help!