GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » ONAN starting (starter stays engaged after starting)
Re: ONAN starting about 2 K windings [message #321032 is a reply to message #320962] Mon, 24 July 2017 23:19 Go to previous messageGo to previous message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma:
Senior Member
I think that I understand Matt's posting on how this is suppose to work.

Ken H,

What I think you are saying is that the K1 contact is indeed 2 contacts with a common bar or disc shorting across them when the coil is energized. In your scenario I believe you are stating that the right side only (and not the left) contact fails to break when power is removed from the K1 coil. So the circuit travels through the internal K1 wire and the right side contact.

I'm still thinking about other possibilities:

1. The electric choke or the horizontal wired K coil. I see a possible path to ground for the vertical wired K coil if the choke or horizontal K coil has an internal partial short to ground.

2. The vertically wired K coil could possibly cause the same thing to the horizontal K if it had an internal short.

3. Is there a wiring error or partial short to +12 v on the wire going to the electric choke.

None of my above scenarios explains why the starter stops when the wire on terminal S is removed. This fact leads more to your explanation being the correct one.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Tank sending units
Next Topic: 403 passenger side exhaust manifold needed in midwest
Goto Forum:
  


Current Time: Thu Oct 31 18:52:34 CDT 2024

Total time taken to generate the page: 0.01021 seconds