Forums Archive Index > Outdoor Power Equipment > More Gilson progress - Alternator pics.

Author: BigRigTech

Date: 17 Dec 2006 3:21 pm

I finished making my heated air intake this morning, it draws all the fresh air past one of the exhaust pipes and heats the carb/intake pretty good. It also has the crankcase vents piped into it as well. The jury will be out on the previous carb/intake icing issue until we get another snowfall.

I tore the machine apart and started prepping it for new paint. I took the flywheel off the engine to see what it had for an alternator - here it is. I'm guessing it's a dual circuit 3Amp AC/DC unit. How do I test it? I'd like to use it to trickle charge the battery when the machine is running. I got a few of the small pieces painted today, I'm going to find out tommorow if a co-worker can blast the machine for me....He used to be a industrial sandblaster and his buddy has a sandblasting business so it would be a freebie. :D The CAT paint made a world of difference on the Craftsman machine - the snow slides of as slick as snot off a rooster's lip. :dance:





Author: robmints

Date: 19 Dec 2006 7:26 pm

The old book I have says they call it Dual Circuit. The one in the book I have says one is unregulated and is rated at 3 amps at 3600 rpm. And the other set of windings is a 5 amp lighting AC circuit. And it says don't reverse them.

The guys that can really be of help are going to need your numbers again though.

If you want a copy of this goofy section i have, just PM me and I'll fax it to you in the morning.


Author: BigRigTech

Date: 19 Dec 2006 8:42 pm

I don't have any numbers - no tins left. :wink:


Author: newjerseybt
Subject: Wiring

Date: 19 Dec 2006 9:39 pm

Since you are flying by the seat of your pants regarding the wiring.

Using what little I think I know. The 5 amp should be the heavier copper wire. See what color wire goes to that one. That should be for the lamp.
This is straight alternating current.

The other smaller diameter copper wire needs to go through at least one diode. This is unregulated 1/2 wave dc voltage.

The diode probably can be one from the Arien's snowblower PNs that has a battery or use a garden tractor diode.

That will ensure the diode can handle the current to charge the battery.


........................Anode Cathode
~ coil side ----------->|------- + pos. side of battery
..............................Diode
3 amp. coil

~ coil ground------------------ - neg. side of battery.
___________________________________________________

~ Coil side ----------------------------- :idea:
~ Coil ground --------------------------^
5 amp. coil

__________________________________________________

The diode MUST be in correctly or you will cause electrical damage. :shock:
Anyone that feels the diode is shown backwards PLEASE chime in.


Author: Majorxlr8n

Date: 20 Dec 2006 1:19 am

This might help...

Marty


Author: BigRigTech

Date: 20 Dec 2006 5:24 am

I had that diagram already, dad found an online manual for a 42 series engine so I was reading through that. I'll have to pickup one of those diodes at my buddy's shop. I could run a 12V dc light off my battery so the heavy draw would not be on my alternator.


Author: chrisexv6

Date: 20 Dec 2006 11:14 am

Ill check when I get home, but for some reason I think I have the Briggs electrical systems book on PDF. I used it when repowering my Bolens tractor......I had to swap stators like yourself, except mine couldnt be nice and use the oh-so-common dual circuit, I had to find a tri-circuit stator.

-Chris


Author: newjerseybt

Date: 24 Dec 2006 1:16 pm

Great diagram!

The after-fire solenoid looks like a great idea to replace the shut-off valve on the gas line. You never have to worry about leaking needle and seats. I might install one on my Ariens S/B with the 12V starter.

That solenoid must be continuous duty or have a compensation circuit to reduce the voltage once the solenoid is locked. Most solenoids get real hot operating at full voltage all the time.


Author: AJace

Date: 26 Dec 2006 4:27 pm

Yeah, my Craftsman Rider has one of those. I never really understood how they worked. I guess it somehow shuts the gas off.