SgtWookie and I were on fire for awhile there on a bi-coastal collaboration over this gas powered battery charger project of mine. Been on mechanical hiatus for just a bit but here's a pic of the dual alternator setup I came up with. Max runout's .006" on the forward half of the coupler.
The flywheel finally arrived so I was able to mount the starter up for some test runs and promptly discovered I sized the starter relay to small. I'd measured the starter motor current at 20A but that wasn't under load. I wondered if that would make a difference at the time ..... it sure does!
At first I blamed the 40A Radio Shack relay but when I pulled the plug wire on the Briggs for a torture test that little starter motor was suckin' 50 big ones! It's a wonder it worked at all but until it welded up the contacts everything was just lovely ....
Here's a pic of the test set up.
So I'm looking for a 12VDC relay that'll handle 50 amps handily and Sarge, if you need any lathe work in the pursuit of your CNC project I'll be seriously pissed if you don't let me know ......
SP
The flywheel finally arrived so I was able to mount the starter up for some test runs and promptly discovered I sized the starter relay to small. I'd measured the starter motor current at 20A but that wasn't under load. I wondered if that would make a difference at the time ..... it sure does!
At first I blamed the 40A Radio Shack relay but when I pulled the plug wire on the Briggs for a torture test that little starter motor was suckin' 50 big ones! It's a wonder it worked at all but until it welded up the contacts everything was just lovely ....
Here's a pic of the test set up.
So I'm looking for a 12VDC relay that'll handle 50 amps handily and Sarge, if you need any lathe work in the pursuit of your CNC project I'll be seriously pissed if you don't let me know ......
SP