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Re: [GMCnet] ONAN starting [message #320914 is a reply to message #320885] Sun, 23 July 2017 18:17 Go to previous messageGo to previous message
William Shourt is currently offline  William Shourt   United States
Messages: 35
Registered: August 2015
Karma:
Member
Ken B, sorry i was not able to get back sooner. I am taking readings at the N/O point of K1 that goes to starter and the choke. That wire goes to 8VDC when the engine starts running, from 12.5 VDC and drops to 0 when wire removed from starter and starter disengages.
> On Jul 23, 2017, at 7:53 AM, Ken Henderson wrote:
>
> OK, I've removed the erroneous ground connection from Pin 8. The revised
> diagram is here:
>
> https://drive.google.com/file/d/0B3XquSIYjDleeFphNGM1OXZKd1k/view?usp=sharing
>
> Eventually I'll get that version "KH Onan Wiring 170723" onto GMCMHPhotos
> to replace "KH Onan Wiring 170604", but I'm having trouble right now.
>
> Ken H.
>
>
> On Sat, Jul 22, 2017 at 11:51 PM, Ken Henderson
> wrote:
>
>> Bill,
>>
>> You're absolutely correct: My latest version is WRONG! I guess when I
>> looked at the OEM diagram and eliminated the Voltage Regulator, I ignored
>> that the SCR in the VR was isolating that point from ground.
>>
>> I'll revise and publish that tomorrow. Gosh, I hope that's the last one!
>> I think my four score years mean I should give up this sort of thing. :-(
>> Y'All keep looking for errors -- and consider assuming this task.
>>
>> Ken H.
>>
>>
>> On Sat, Jul 22, 2017 at 9:32 PM, Bill Wevers wrote:
>>
>>> Mr. Henderson,
>>> I believe your original schematic was correct, with respect to Pin 8.
>>> When I look at PIN 8 on my Onan board, it does not connect to GND.
>>> That's the 30V generator output being rectified by CR1 and filtered by R1
>>> C1.
>>>
>>
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