Generators and Motors
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Vintage Electrical Equipment > Generators & Electric Motors General Discussion > Onan Generators
Forgot Password? Join Us!

Notices

Onan Generators Restoring, operating and maintaining vintage Onan generators.

Onan Generators

1977-78 Onan 4kw Fires Only When Holding Switch


this thread has 12 replies and has been viewed 667 times

Reply
 
Thread Tools Display Modes
  #11  
Old 04-13-2018, 01:05:48 PM
Kevin K Kevin K is offline
Registered-III
 
Join Date: Jan 2005
Location: upstate New York USA
Posts: 3,960
Thanks: 3,681
Thanked 4,169 Times in 2,179 Posts
Default Re: 1977-78 Onan 4kw Fires Only When Holding Switch

Do you have a BF or BFA?

BFA Parts book 965-0222 part # 353-0057 3.4 ohms 25 watt
BF parts book 965-0220 Part # 353-0057 3.4 ohms 75 watt

One of those wattages may be a misprint.
Reply With Quote
Sponsored Links
  #12  
Old 04-13-2018, 08:00:03 PM
wmrayt wmrayt is offline
Registered
 
Join Date: Apr 2018
Location: Sorento, Illinois, USA
Posts: 7
Thanks: 0
Thanked 1 Time in 1 Post
Default Re: 1977-78 Onan 4kw Fires Only When Holding Switch

the only ones I have been able to find are 25 watt. I have ordered several and the diode rectifier also.
Reply With Quote
  #13  
Old 04-18-2018, 07:57:42 PM
wmrayt wmrayt is offline
Registered
 
Join Date: Apr 2018
Location: Sorento, Illinois, USA
Posts: 7
Thanks: 0
Thanked 1 Time in 1 Post
Default Re: 1977-78 Onan 4kw Fires Only When Holding Switch

Up Date:
I took the side case off of the motor and got the ID plate under a well lit magnifying glass it is a 4.0 BF-3C/16000B.

I ordered the resistor that is under the generator cover and replaced it.
IT'S ALIVE!!!!!!!!!

It will not handle much of a load yet before it kills it but getting a little better every day. Hope it will handle the fridge and a/c together.

I have another question though.
When running the generator going down the road will it mess with the charging from the alternator?
Reply With Quote
The Following User Says Thank You to wmrayt For This Post:
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Onan RDJC 1977 coinbalt69 Onan Generators 11 10-05-2017 10:38:42 PM
Onan 4.0 BGE-FA only fires when start switch pressed sopicki Onan Generators 11 04-29-2017 11:40:15 AM
ONAN 6.3 NHOFB only runs holding starter button. rpmalerba Onan Generators 88 08-03-2014 10:56:52 PM
Onan 6.5 NH 1977 Start Switch stopped working bodyboard Onan Generators 7 12-17-2012 09:34:30 PM
help onan won't run without holding start button and not charging wendyjwalks Onan Generators 6 06-26-2012 11:52:25 PM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 11:31:13 AM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277