Home » Public Forums » GMCnet » Onan rebuild kit (does anyone sell one for our NH motors?)
| Onan rebuild kit [message #106254] |
Fri, 19 November 2010 21:58  |
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I was wondering when the time comes, if anyone sold a compleate overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be compleated in a a day or so once the onan was out. I ask this because I use the bugger a lot, 50+ hrs in the last month and a half, I also run a full synthetic oil with a friction modifying agent designed to decrease wear even further, but I know at some point wih all this, it will need an overhaul to bring it back to new....
73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
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| Re: Onan rebuild kit [message #106274 is a reply to message #106254] |
Sat, 20 November 2010 07:05  |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| Duce Apocalypse wrote on Fri, 19 November 2010 21:58 |
I was wondering when the time comes, if anyone sold a complete overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be completed in a a day or so once the onan was out. I ask this because I use the bugger a lot, 50+ hrs in the last month and a half, I also run a full synthetic oil with a friction modifying agent designed to decrease wear even further, but I know at some point with all this, it will need an overhaul to bring it back to new....
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I don't have any info on Onan rebuild kits, but based on their prices for other parts it may be more economical to buy an appropriate replacement generator <grin>.
What "friction modifying agent" are you using? Do you also use this "agent" in the GMC engine?
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: Onan rebuild kit [message #106280 is a reply to message #106254] |
Sat, 20 November 2010 08:59 |
Erv Troyer
Messages: 125
Registered: February 2004
Location: Lagrange, IN
Karma: 0
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Senior Member |
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| Shan Rose wrote on Fri, 19 November 2010 21:58 |
I was wondering when the time comes, if anyone sold a complete overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be compleated in a a day or so once the onan was out.
<snip>
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One of the best small engine parts houses is Stens http://www.stens.com/ Their after-market parts are a lot cheaper than OEM parts, and quality is as good as OEM. Most repair shops will sell you Stens parts, or you can also buy them direct.
I didn't see an "overhaul kit", but they would have all the individual parts you would need - rings, seals, gasket sets, rods, etc.
I would suggest you take it apart before you order parts to avoid surprises, such as a cylinder bored .010 oversize, or connecting rod that is under size.
Erv Troyer Lagrange, IN
74 Sequoia
reo43@aol.com
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| Re: Onan rebuild kit [message #106281 is a reply to message #106254] |
Sat, 20 November 2010 08:59 |
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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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| Duce Apocalypse wrote on Fri, 19 November 2010 22:58 |
I was wondering when the time comes, if anyone sold a compleate overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be compleated in a a day or so once the onan was out. I ask this because I use the bugger a lot, 50+ hrs in the last month and a half, I also run a full synthetic oil with a friction modifying agent designed to decrease wear even further, but I know at some point wih all this, it will need an overhaul to bring it back to new....
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Well Duce,
When this series was built, it was sold with a projected service life of 8000 hrs (a little short on a year full time). I have personally known some that did that hands down. With out lead in the fuel, you may need to lap the valves.
Rather than try to just do a slam parts rebuild, I would suggest you might consider treating it like a real engine and set aside the time to dis-assemble and inspect it and then acquire the parts you actually need. Valves will need to be re-seated, cylinders may need a hone for surface finish, Maybe the crank will need some attention.
I would bet one of the on-line small engine shops could supply all the rings, bearings, seals and gaskets. The engine in the NH and BF families were sold for quite a number of other applications.
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: Onan rebuild kit [message #106288 is a reply to message #106280] |
Sat, 20 November 2010 12:18 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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| Erv Troyer wrote on Sat, 20 November 2010 08:59 |
| Shan Rose wrote on Fri, 19 November 2010 21:58 |
I was wondering when the time comes, if anyone sold a complete overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be compleated in a a day or so once the onan was out.
<snip>
|
One of the best small engine parts houses is Stens http://www.stens.com/ Their after-market parts are a lot cheaper than OEM parts, and quality is as good as OEM. Most repair shops will sell you Stens parts, or you can also buy them direct.
I didn't see an "overhaul kit", but they would have all the individual parts you would need - rings, seals, gasket sets, rods, etc.
I would suggest you take it apart before you order parts to avoid surprises, such as a cylinder bored .010 oversize, or connecting rod that is under size.
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it looks like all they have is filters and head gaskets.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: Onan rebuild kit [message #106312 is a reply to message #106254] |
Sat, 20 November 2010 19:43 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| Duce Apocalypse wrote on Fri, 19 November 2010 19:58 |
... I ask this because I use the bugger a lot, 50+ hrs in the last month and a half, ...
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Being an engine for "industrial" use, use is the best thing for an Onan.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: Onan rebuild kit [message #106380 is a reply to message #106274] |
Sun, 21 November 2010 17:16 |
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| midlf wrote on Sat, 20 November 2010 07:05 |
| Duce Apocalypse wrote on Fri, 19 November 2010 21:58 |
I was wondering when the time comes, if anyone sold a complete overhaul kit for the onan. from the manual overhaul looks petty basic andoculd be completed in a a day or so once the onan was out. I ask this because I use the bugger a lot, 50+ hrs in the last month and a half, I also run a full synthetic oil with a friction modifying agent designed to decrease wear even further, but I know at some point with all this, it will need an overhaul to bring it back to new....
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I don't have any info on Onan rebuild kits, but based on their prices for other parts it may be more economical to buy an appropriate replacement generator <grin>.
What "friction modifying agent" are you using? Do you also use this "agent" in the GMC engine?
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royal purple 10/40 with synerlec and Z-max are powerful mojo...
73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
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