GMCforum: GMCnet » ONAN starting

Home » Public Forums » GMCnet » ONAN starting (starter stays engaged after starting)

Show: Today's Messages :: Polls :: Message Navigator

Re: [GMCnet] ONAN starting [message #320825 is a reply to message #320824]

Sat, 22 July 2017 04:49

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma:

Senior Member

On Sat, Jul 22, 2017 at 2:23 AM Ken Burton wrote:

> In the following I am assuming that when this failure occurs that the
> engine has started and is running. If it is not running then ignore the
> following:
>
> It should not be the switch because K1's power should be dropped the
> moment the engine starts. Even if you are still holding the switch down.
> This

Read here
http://gmc49ers.blogspot.com/2016/04/onan-start-relay-k1.html

> is because there is a N/C K2 contact in the circuit. K2 picks up from the
> Onan Alternator when the alternator reaches 28 + volts AC. This happens
> within a second or so of the engine starting to run.
>
>
> If the engine is not running, then you need to go look at the start and
> stop switch(es) and cabling.
>
> The start circuit is simple. The start switch(es) simply ground K1 which
> applies power to the starter and also picks K3 to supply power to the
> ignition and fuel pump.
>
> I'm a little confused by the voltage readings that you posted. If K1 is
> energized, then the coil terminal should read 0 volts (to ground). If the
> K1
> coil is not energized then the K1 coil terminal should read battery
> voltage which is around +12 volts.
>
> The 8 volt reading that you mentioned means that you have something with a
> partial short or a short through another component to ground.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Report message to a moderator

[Message index]

		ONAN starting By: Bill Shourt on Fri, 21 July 2017 14:04
		Re: [GMCnet] ONAN starting By: James Hupy on Fri, 21 July 2017 14:49
		Re: [GMCnet] ONAN starting By: William Shourt on Fri, 21 July 2017 18:15
		Re: [GMCnet] ONAN starting By: Carl S. on Fri, 21 July 2017 19:09
		Re: [GMCnet] ONAN starting By: William Shourt on Fri, 21 July 2017 19:17
		Re: ONAN starting By: lqqkatjon on Fri, 21 July 2017 22:35
		Re: ONAN starting By: Ken Burton on Sat, 22 July 2017 04:11
		Re: [GMCnet] ONAN starting By: Mr ERFisher on Sat, 22 July 2017 04:49
		Re: [GMCnet] ONAN starting By: William Shourt on Sat, 22 July 2017 07:51
		Re: [GMCnet] ONAN starting By: Ken Burton on Sat, 22 July 2017 10:54
		Re: [GMCnet] ONAN starting By: Bullitthead on Sat, 22 July 2017 13:29
		Re: [GMCnet] ONAN starting By: William Shourt on Sat, 22 July 2017 14:07
		Re: [GMCnet] ONAN starting By: Bullitthead on Sat, 22 July 2017 14:48
		Re: [GMCnet] ONAN starting By: William Shourt on Sat, 22 July 2017 13:46
		Re: [GMCnet] ONAN starting By: Ken Henderson on Sat, 22 July 2017 18:00
		Re: [GMCnet] ONAN starting By: Bullitthead on Sat, 22 July 2017 19:09
		Re: [GMCnet] ONAN starting By: bwevers on Sat, 22 July 2017 20:32
		Re: [GMCnet] ONAN starting By: Ken Henderson on Sat, 22 July 2017 22:51
		Re: [GMCnet] ONAN starting By: Ken Henderson on Sun, 23 July 2017 09:53
		Re: [GMCnet] ONAN starting By: William Shourt on Sun, 23 July 2017 18:17
		Re: [GMCnet] ONAN starting By: Guy Lopes on Tue, 25 July 2017 00:51
		Re: [GMCnet] ONAN starting By: Bruce Hart on Tue, 25 July 2017 05:59
		Re: [GMCnet] ONAN starting By: Ken Henderson on Tue, 25 July 2017 06:09
		Re: [GMCnet] ONAN starting By: jimk on Tue, 25 July 2017 10:03
		Re: [GMCnet] ONAN starting By: William Shourt on Tue, 25 July 2017 13:23
		Re: [GMCnet] ONAN starting By: William Shourt on Tue, 25 July 2017 13:29
		Re: [GMCnet] ONAN starting By: William Shourt on Tue, 25 July 2017 13:32
		Re: [GMCnet] ONAN starting By: William Shourt on Tue, 25 July 2017 14:19
		Re: [GMCnet] ONAN starting By: Ken Burton on Tue, 25 July 2017 15:11
		Re: [GMCnet] ONAN starting By: Emery Stora on Tue, 25 July 2017 20:30
		Re: [GMCnet] ONAN starting By: Ken Henderson on Tue, 25 July 2017 21:15
		Re: [GMCnet] ONAN starting By: William Shourt on Sat, 22 July 2017 07:57
		Re: ONAN starting By: lqqkatjon on Sat, 22 July 2017 15:32
		Re: ONAN starting By: Ken Burton on Sat, 22 July 2017 20:14
		Re: ONAN starting By: JohnL455 on Sun, 23 July 2017 16:34
		Re: ONAN starting By: JohnL455 on Sun, 23 July 2017 16:38
		Re: ONAN starting By: Ken Burton on Sun, 23 July 2017 21:17
		Re: [GMCnet] ONAN starting By: William Shourt on Sun, 23 July 2017 23:09
		Re: [GMCnet] ONAN starting By: Ken Henderson on Sun, 23 July 2017 23:35
		Re: ONAN starting about 2 K windings By: Matt Colie on Mon, 24 July 2017 09:28
		Re: [GMCnet] ONAN starting about 2 K windings By: William Shourt on Mon, 24 July 2017 13:26
		Re: [GMCnet] ONAN starting about 2 K windings By: Ken Henderson on Mon, 24 July 2017 20:56
		Re: [GMCnet] ONAN starting about 2 K windings By: Bullitthead on Mon, 24 July 2017 23:15
		Re: [GMCnet] ONAN starting about 2 K windings By: William Shourt on Mon, 24 July 2017 23:23
		Re: ONAN starting about 2 K windings By: Ken Burton on Mon, 24 July 2017 23:19
		Re: ONAN starting about 2 K windings By: Ken Burton on Tue, 25 July 2017 01:15
		Re: [GMCnet] ONAN starting about 2 K windings By: Ken Henderson on Tue, 25 July 2017 06:14
		Re: ONAN starting By: bwevers on Tue, 25 July 2017 00:22

Previous Topic:	Tank sending units
Next Topic:	403 passenger side exhaust manifold needed in midwest

Goto Forum:

-=] Back to Top [=-

Current Time: Thu May 16 11:35:48 CDT 2024

Total time taken to generate the page: 0.00738 seconds