Home » Public Forums » GMCnet » My "Buzz Box" is buzzing, no power reaching the house battery
Re: My "Buzz Box" is buzzing, no power reaching the house battery [message #359580 is a reply to message #359285] |
Sun, 18 October 2020 20:53 |
lotsofspareparts
Messages: 726 Registered: May 2014 Location: Arlington, WA
Karma: -9
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Changed out the bridge rectifier on the Onan and voila.... she puts out power again!! Bought a big one, shouldn't have any more issues with that.
Runs great, doesn't smoke or make any funny noises.
Didn't even have to pull the generator. I raised the rear of the coach all the way, slid the drawer out and changed it out from underneath.
I'm going to order a set of head gaskets and de-carbon the heads since I have no idea if it's ever been done.
Thanks for the suggestions!!
Jared
Jared & Tina Lazaron + 14yr old Daughter.....
77 Eleganza II "Recherché".....
73 Canyon Lands 230 "Elephant"
[Updated on: Sun, 18 October 2020 20:54] Report message to a moderator
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359582 is a reply to message #359581] |
Sun, 18 October 2020 21:38 |
lotsofspareparts
Messages: 726 Registered: May 2014 Location: Arlington, WA
Karma: -9
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James Hupy wrote on Sun, 18 October 2020 19:08Be careful to turn off all loads on the generator, BEFORE TURNING OFF THE
GENERATOR. Particularly the roof air.
Jim Hupy
Salem, Oregon
I certainly did remember to do that, and will hopefully continue to do so.
Matt mentioned that he thought that's what caused his rectifier to crap out.
I've got 2 more.... just in case.
Jared
Jared & Tina Lazaron + 14yr old Daughter.....
77 Eleganza II "Recherché".....
73 Canyon Lands 230 "Elephant"
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359585 is a reply to message #359581] |
Sun, 18 October 2020 21:50 |
jimk
Messages: 6734 Registered: July 2006 Location: Belmont, CA
Karma: 9
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Jared,
With the new fuel blend w/o lead, there is no need to clean your head.
Your reading a 45 year old instruction.
On Sun, Oct 18, 2020 at 7:08 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Be careful to turn off all loads on the generator, BEFORE TURNING OFF THE
> GENERATOR. Particularly the roof air.
> Jim Hupy
> Salem, Oregon
>
> On Sun, Oct 18, 2020, 6:54 PM Jared via Gmclist
> wrote:
>
>> Changed out the bridge rectifier on the Onan and voila.... she puts out
>> power again!! Bought a big one, shouldn't have any more issues with that.
>>
>> Runs great, doesn't smoke or make any funny noises.
>>
>> I'm going to order a set of head gaskets and de-carbon the heads since I
>> have no idea if it's ever been done.
>>
>> Thanks for the suggestions!!
>>
>> Jared
>> --
>> Jared & Tina Lazaron + 14yr old Daughter.....
>>
>> 77 Eleganza II "Recherché".....
>>
>> 73 Canyon Lands 230 "Elephant"
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359589 is a reply to message #359585] |
Mon, 19 October 2020 06:35 |
lotsofspareparts
Messages: 726 Registered: May 2014 Location: Arlington, WA
Karma: -9
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jimk wrote on Sun, 18 October 2020 19:50Jared,
With the new fuel blend w/o lead, there is no need to clean your head.
Your reading a 45 year old instruction.
Would you agree that it should be done if it never has been done?
I'm sure for a portion of it's 47 years, it was ran on leaded fuel.
Head gaskets are cheap, and they are simple to replace.
I have a collection of 30 something vintage John Deere garden tractors. One of the first things I do after I acquire a new one and get it running is pull the head for a cleaning. It has the added benefit of being able to judge engine wear based on the condition of the cylinder walls.
It's not that I'm reading 45 year old instructions, it's just a good idea to do it if you don't know when or if it has ever been done.
Jared
Jared & Tina Lazaron + 14yr old Daughter.....
77 Eleganza II "Recherché".....
73 Canyon Lands 230 "Elephant"
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359592 is a reply to message #359589] |
Mon, 19 October 2020 08:26 |
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Matt Colie
Messages: 8547 Registered: March 2007 Location: S.E. Michigan
Karma: 7
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lotsofspareparts wrote on Mon, 19 October 2020 07:35
Would you agree that it should be done if it never has been done?
I'm sure for a portion of it's 47 years, it was ran on leaded fuel.
Head gaskets are cheap, and they are simple to replace.
I have a collection of 30 something vintage John Deere garden tractors. One of the first things I do after I acquire a new one and get it running is pull the head for a cleaning. It has the added benefit of being able to judge engine wear based on the condition of the cylinder walls.
It's not that I'm reading 45 year old instructions, it's just a good idea to do it if you don't know when or if it has ever been done.
Jared
Jared,
Go on and pull the heads, knock off the big flakes.
NOW, if the head gaskets are asbestos filled copper, Leave them ALONE. Do your best to not hurt them while you clean the piston crown. If you bought new gaskets, you will note that they are not the MFM (metal-filler-metal) that are there. The reason is that those gaskets were expensive to make. They are very good with the limber cylinder head castings like old F-head engines all have. If they are undamaged, when you screw the heads back down, they will work as well (and maybe better with the re-torque) than they did before. You do have to be sure that they stay on the same side and go back where they came from.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359595 is a reply to message #359580] |
Mon, 19 October 2020 11:03 |
sgltrac
Messages: 2797 Registered: April 2011
Karma: 1
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I de-carboned The heads on the 6k in The War Pig and re used the gaskets.
Worked fine. Someone I think on here suggested to put a layer of anti seize
on the exposed side of the gasket prior to installation which I did. There
was a lot of carbon on the heads/ pistons.
Sully
Bellevue wa
On Sun, Oct 18, 2020 at 6:54 PM Jared via Gmclist
wrote:
> Changed out the bridge rectifier on the Onan and voila.... she puts out
> power again!! Bought a big one, shouldn't have any more issues with that.
>
> Runs great, doesn't smoke or make any funny noises.
>
> I'm going to order a set of head gaskets and de-carbon the heads since I
> have no idea if it's ever been done.
>
> Thanks for the suggestions!!
>
> Jared
> --
> Jared & Tina Lazaron + 14yr old Daughter.....
>
> 77 Eleganza II "Recherché".....
>
> 73 Canyon Lands 230 "Elephant"
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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Re: [GMCnet] My "Buzz Box" is buzzing, no power reaching the house battery [message #359601 is a reply to message #359599] |
Mon, 19 October 2020 13:21 |
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Matt Colie
Messages: 8547 Registered: March 2007 Location: S.E. Michigan
Karma: 7
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Senior Member |
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powwerjon wrote on Mon, 19 October 2020 12:32The trick that I was taught was to spray both sides of the gasket with aluminum paint several times and then reuse.
J.R. Wright
J.R.
Real aluminum paint will work well, if you let it dry completely.
So will good anti-sieze, or a dry moly-cote.
The fact is, is any gasket has not been damaged, it can be reused and will work at least as well as it ever did.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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