Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-06-2017, 05:57 AM   #1
Winnebago Camper
 
AC Orange's Avatar
 
Join Date: Jan 2015
Posts: 15
Brand new Onan GenSet with major malfunction and no part available ...

.
Brand new Onan gen-set in my new Class "B" Winnebago Paseo. It is a 2.8HGJB-1125 gasoline unit typical of what is being placed in many class B's. It had 10 hours on it and refused to start. The second week of August 2017 I took it to an Onan/Cummins dealer service shop (as it is under warranty) where they had to remove it from the RV for repair. Turns out it is a bad coil. Hmmm, seems like a relatively minor problem. Well now it's Nov 6th and still no gen-set and I'm being told probably December. Turns out that there is a boatload of bad coils in these things and Onan has had them on back order for a while. The dealer checked the entire region and all the Onan shops have coils on back order (probably 3 dozen or more). Googling this I find it is a common problem right now. I called the Cummins head office to try and get more info on this hard to believe story. Talked to a "second tier" guy and it's true ... no coils until at least the end of November. I am stunned that Cummins has no second source supplier for stuff like this. My gosh, it's a small engine coil we are talking about ! So I'm stuck waiting on this. Has anybody else had a similar experience ?
__________________
2017 Winnebago Paseo ; 2004 Jeep Wrangler "toad"
AC Orange is offline   Reply With Quote
Old 11-06-2017, 07:11 PM   #2
Winnie-Wise
 
Join Date: Feb 2017
Location: Denver, CO
Posts: 264
I wonder if it was a faulty design or manufacturing? The first would be hard to resolve but the second should be easier.
BirchyBoy is offline   Reply With Quote
Old 11-06-2017, 10:41 PM   #3
Winnebago Owner
 
CJBROWN's Avatar
 
Join Date: Jul 2006
Location: Orange County CA
Posts: 171
Sure. Sis and BIL's diesel one in their big fancy coach never would run right - cummins took it out and they left it with them for a month before it was reinstalled into the unit. Still never did run right - smoked and belched and jerked and sometimes wouldn't run at all. They gave up and sold the whole rig - was a lemon, just one of many, many things wrong. Heartbreaking. Yup, a winnebago. [shrug]

They said they would replace it worst case but never did - just dinked around with it for months.

Patience grasshopper... mother-ship onan will come through.
__________________
Chris & Sherry Brown - 2014 Anza Borrego Weekend Trip Report
2005 Itasca Sunrise 31W - W20 and 8.1
2015 Chevy Colorado 4X4 Toad
CJBROWN is offline   Reply With Quote
Old 11-07-2017, 09:41 PM   #4
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,175
Its a air gap magneto like on a lawn mower and not an external coil on the HGJB so they are custom to the engine and not universal. I just had the first one go bad after 17 years and almost 1,500 hours (consider that around 75,000 miles on an air cooled motorcycle) so one would not expect a lot of spares to be stocked so if they had a bad batch get into the supply chain then all the existing ones from known good stock would get used up pretty quickly with all the new suspect ones getting pulled leaving none available. Then you would have to wait for the issue at the manufacturers be resolved before they could restock known good replacements and get them into the supply chain. It could be a simple problem like a bad batch of lacquer or something worse like the winding or laminated core machine requiring service/replacement or worse yet an updated design that has proven to be a dud. If its a bad design of the coil itself then they would have to re-design it and re-tool in order to start making the replacements.

Hopefully its not more than the coil and not related to insufficient air flow in the belly pan of the generator causing heat buildup requiring an update of that also. Designing and testing out a fix for that could take some time causing further delays.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 11-08-2017, 09:17 AM   #5
Winnebago Camper
 
AC Orange's Avatar
 
Join Date: Jan 2015
Posts: 15
Quote:
Originally Posted by NeilV View Post
Its a air gap magneto like on a lawn mower and not an external coil on the HGJB so they are custom to the engine and not universal. I just had the first one go bad after 17 years and almost 1,500 hours (consider that around 75,000 miles on an air cooled motorcycle) so one would not expect a lot of spares to be stocked so if they had a bad batch get into the supply chain then all the existing ones from known good stock would get used up pretty quickly with all the new suspect ones getting pulled leaving none available. Then you would have to wait for the issue at the manufacturers be resolved before they could restock known good replacements and get them into the supply chain. It could be a simple problem like a bad batch of lacquer or something worse like the winding or laminated core machine requiring service/replacement or worse yet an updated design that has proven to be a dud. If its a bad design of the coil itself then they would have to re-design it and re-tool in order to start making the replacements.

Hopefully its not more than the coil and not related to insufficient air flow in the belly pan of the generator causing heat buildup requiring an update of that also. Designing and testing out a fix for that could take some time causing further delays.
.
The Cummins repair shop as well as the Cummins head office gave me p/n 0166-0772 (and sent me a pic) which is the coil in the pic (p/n on box). Could these newest gen-sets be using a different sort of coil ?
Attached Thumbnails
Click image for larger version

Name:	Onan Coil PIC 0166-0772.jpg
Views:	79
Size:	151.8 KB
ID:	169126  
__________________
2017 Winnebago Paseo ; 2004 Jeep Wrangler "toad"
AC Orange is offline   Reply With Quote
Old 11-08-2017, 09:10 PM   #6
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,175
That could be a new design with a CDI unit. What I am used to on the two cylinder HGJ models are two magneto coils like this with one coil for each spark plug:



The one you listed though is for CCK models Beginning Spec J. Also B & N Series. BF, BFA, BG, BGA, BGE Spec A-F, B43E, B43G, B43M, B48G, B48M, NH, NHA, NHB, NHC, NHE, NHP, N52M which may have breaker points.

It is also used in Miller Welders and some John Deer equipment.

Amazon has a few at $123 each so they are quite expensive:
https://www.amazon.com/Cummins-16607...70_&dpSrc=srch

Ebay has them for as low as $62 new:
https://www.ebay.com/sch/i.html?_fro...-0772&_sacat=0
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 11-09-2017, 12:54 PM   #7
Winnebago Camper
 
Join Date: Apr 2013
Posts: 23
HGJBB Ignition Coil

The correct Cummins Onan part number is A043K694.
Attached Files
File Type: pdf HGJBB Ignition Coil.pdf (47.3 KB, 45 views)
lotsoftoys is offline   Reply With Quote
Old 11-09-2017, 02:33 PM   #8
Winnebago Camper
 
AC Orange's Avatar
 
Join Date: Jan 2015
Posts: 15
.
Oh great ! So it looks like both places are giving me the wrong part number ? This is not giving me a warm and fuzzy feeling.
__________________
2017 Winnebago Paseo ; 2004 Jeep Wrangler "toad"
AC Orange is offline   Reply With Quote
Old 11-09-2017, 09:16 PM   #9
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,175
What does the Onan manual that came in the Winnebago Black Bag indicate? A call to a Winnebago Service Advisor at their toll free number may be advisable to have them pull the build sheet and tell you exactly what generator was installed and which coil it uses. Have the VIN and Serial Numbers, etc available for them when you make the call.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 11-10-2017, 06:59 AM   #10
Winnebago Camper
 
AC Orange's Avatar
 
Join Date: Jan 2015
Posts: 15
Quote:
Originally Posted by NeilV View Post
What does the Onan manual that came in the Winnebago Black Bag indicate? A call to a Winnebago Service Advisor at their toll free number may be advisable to have them pull the build sheet and tell you exactly what generator was installed and which coil it uses. Have the VIN and Serial Numbers, etc available for them when you make the call.
.
I already did all that. Talked to 4 different sources multiple times. First call was Winnebago, who referred me to Cummins (they said it's a Cummins issue, talk to them). Next was my RV dealer who referred me to the local Cummins repair shop. After the repair shop pulled the gen-set out and gave me the bad news about delivery time on coils I made another call to a second tier service rep at the Cummins main office. I didn't have to say much to the Cummins 2nd tier guy. All of my pertinent info was already in the Cummins data base (including the correct s/n of my gen-set). Every source gave me the same info on this issue, including the p/n I've cited. So you can see my reason for being confused with regard to the p/n.
__________________
2017 Winnebago Paseo ; 2004 Jeep Wrangler "toad"
AC Orange is offline   Reply With Quote
Old 11-10-2017, 11:33 AM   #11
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,175
Time to visually confirm what's already in there whether its Magneto's or Trigger Pickups with CDI and Coil or Points, Condenser and Coil.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Reply

Tags
onan


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Weight for Onan GenSet navychaps General Maintenance and Repair 20 07-30-2013 09:58 AM
Onan genset question... Lowhorn Electrical | Charging, Solar and Electronics 6 02-03-2012 06:34 PM
New Vista, Lifter noise on delivery date and major rust bassmaster Winnebago Class A Motorhomes 29 04-01-2011 07:19 AM
Onan Genset won't crank - ideas? emiddleb Electrical | Charging, Solar and Electronics 8 02-25-2009 01:12 PM
What's NOT Available on '07 Journeys - Available Prior Pusherman Winnebago Class A Motorhomes 7 01-05-2007 05:06 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 10:15 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×