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Forum
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RE: GM 6.5 Diesel
I've run (2) GMs with the 6.5. First one went 145,000 miles before the injection pump died. GM wanted $4500 to replace it, I got a rebuilt one for $495 plus exchnage and was back on the road in 3 hours. Finally wore that one out at 500,000 miles, had the original transmission in it, 2 lift pumps. I think I git good servie out of that one. The second onedid well also, neighbir as it now and it is still going strong.
A little care and don't try to hot rod these engines and you'll be fine. A lot of dealers rape their customers when they have an injection pump failure (not a real good design on the front side), dealers buy a rebuilt pump for $400 or so, takes about 3 hours to put one in, a little longer if its your first time. A lot of people end up having a a lot of trouble, and sometimes a lot of that is of their own making, especially the ones who hot rod this engine.
I would not consider one on a MH unless it was small and light. I would not hesitate to get one in a P/U or a Suburban if they have been well maintained.
Another problem with this engine is that a lot of folks ended up working on them that had no idea what they were doing and crewed something up and in turn screwed the customer.
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gunny357
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01/05/09 04:44pm |
Class A Motorhomes
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RE: My Generator keeps triping it's 20 Amp breaker
Does the AC work OK on shore power? If so, you can probably eliminate a problem with the AC but I would still check the amp load with an ammeter. AC draw a lot of amps when they first start, especially in cool weather and the oil is thick.
Those Onan breakers have been known to go bad.
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gunny357
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01/04/09 02:54pm |
Tech Issues
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RE: Generac generator quality
Owners say, "Don't use the words QUALITY and GENERAC ever again in the same sentence"
Well put!
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gunny357
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01/03/09 07:15am |
Tech Issues
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RE: Onan only runs when start pushed.
Well if you're going to throw parts at it in hopes of a fix, might as well go for a voltage regulator next. Get one from Flight Systems, they are cheaper and better than OEM.
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gunny357
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01/02/09 04:52pm |
Tech Issues
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RE: Generac generator quality
All kidding and BS aside, not a bad machine for the money but..............
Parts, including service parts like filters are NOT readily available from economical sources like NAPA. Can just about rebuild an Onan out of a NAPA store, well except for the electronics.
Finding someone technically competent to repair it may be an issue, they changed models, control panels, sources for engines almost every month.
Some folks have had god luck with generac, a lot more cuss them and refer to them as gener junk.
If the diesel engine is a Yanmar, Deutz or Kubota, go for it, they are excellent engines. Hope the rest does OK. If an unknown brand of diesel engine, I'd either take a pass or use this information to improve your bargaining position.
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gunny357
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01/01/09 02:40pm |
Tech Issues
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RE: Onan 7.5 generator: fault code 22
I know it sounds crazy but it may need a fuel filter.The engine can't run at full throttle due to restricted fuel flow. Which causes the code 22 because it can't make enough current to supply the load, which may be the just battery charger. I know the manual says change it at 500 hrs but since you just got this rig you don't know for sure how it was treated. A new filter is only about $22 at https://www.cumminsonanstore.com/. I have the same unit and just got air, fuel,and oil filters from them. Fast delivery too, they are in Indiana.
That would be my first guess.
Post the whole model/spec/serial number so we'll know what you have and can give you some meaningful advice. Keep some folks from embarrassing themselves by giving advice on a propane engine when you are asking about a diesel.
Change the fuel filter and see how it does.
Do the cheap and easy stuff first.
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gunny357
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12/29/08 04:19pm |
Tech Issues
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RE: Generator Problem
You usually get better results if you tell us the make/model/spec/serial number of the genset. At least we'll know what you have and can give you some meaningful advice.
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gunny357
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12/28/08 06:26pm |
Class A Motorhomes
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RE: Changing Oil Filter in Onan Genset?
If you don't see the oil filter sticking out of the side of the sheet metal, it did not leave the factory with one. In that case, just change oil oftener than if it had a filter and enjoy it, you have a well made machine there that will give you many years of good service if yo do your part and do the maintenance.
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gunny357
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12/28/08 03:29pm |
Tech Issues
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RE: Need a real smart GM mechanic
No, you need to take it back to the folks who installed the transmission and have them make it right.
My thoughts are this wiring harness they made................
You paid them to perform a task, they took your money, it isn't right, you may want to seek good legal advice.
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gunny357
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12/28/08 05:46am |
Tech Issues
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RE: Changing Oil Filter in Onan Genset?
How in the heck can one change the oil filter in an Onan 6.5 RV Genset?
It is an NHC, Spec "P" Genset,
And I even went by Cummins-Onan, and got 2 service manuals, which are unclear, and I got the oil filter wrench and everything, only to discover that I am absent the ability to find this filter, and fear it is on the inside of the compartment that the Genset is mounted in.
This would basically mean taking the rear of the RV apart to change the #$^%#@@ oil filter.
Any thoughts?
HB
Post the whole genset model/spec/serial number.
Your #$^%#@@ genset may not have left the factory with an oil filter.
Very doubtful that the filter is on the inside, else you would not be able to acess the control panel either.
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gunny357
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12/27/08 08:35pm |
Tech Issues
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RE: RADIATOR FINS FLAKING OFF.
Time to start saving up to have the radiator re-cored.
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gunny357
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12/27/08 06:49am |
Tech Issues
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RE: 2003 CAT Engine won't start
Did you run the engine heater before trying a start?
Watch the tail pipe while cranking the engine, any smoke at all?
Do NOT, NEVER, EVER use ether to try to start this engine. May cause you to have to shellout for a new engine.
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gunny357
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12/26/08 08:31am |
Tech Issues
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RE: onan 6.5
New breakers usually come in the tripped position. Need to cycle them to off and then on. Else you'll need to break out a VOM and see where it is not making a circuit.
Be aware that if that genset is not making electricity, it will not continue to run. This means the genset is good and the problem is a connection/conductivity problem
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gunny357
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12/24/08 04:48pm |
Tech Issues
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RE: Generator problem
Oil in crankcase?
Pull the spark plug and see if it'll turn over.
Let us know what happens.
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gunny357
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12/22/08 09:53am |
Tech Issues
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RE: Will it start?
By all means start the genset. Let it warm up for a couple of minutes and use it to power up the block heater. 20 to 30 minutes of heat from the block heater should be enough. Also while the genset is running, it'll be charging the engine start batteries. Should go OK for you.
Be sure the block heater is plugged in and the switch for it is on.
Good luck with it.
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gunny357
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12/21/08 05:54pm |
Class A Motorhomes
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RE: FIXED! My generator wont run my house furnace no more.
I learned something here.
Thanks
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gunny357
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12/21/08 05:47pm |
Tech Issues
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RE: onan Lp 2500 stop working while on vacation ,help please
That isn't good.
If there is any warranty on it, take it to Cummins/Onan and have them fix it. Be far cheaper to have it fixed under warranty than to pull the dollars out of your wallet.
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gunny357
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12/21/08 05:47pm |
Tech Issues
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RE: FIXED! My generator wont run my house furnace no more.
Your genset uses inverter technology. In your case the furnace computer/controller is not liking the AC sine wave from the genset. You could try adding a resistive load like 2 or 4 100 watt light bulbs in line with the furnace and then try starting the furnace.
Else not sure what else you could try except a different genset, one without inverter technology.
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gunny357
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12/21/08 08:55am |
Tech Issues
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RE: Dealer tactics
I've been pricing out some new Tiffin motorhomes, and getting quotes from different dealers. The dealer in my city quoted roughly 10% more (around 20K) for the same build as two other out of state dealers. When I mentioned the quote from the other guys, the salesperson said they are lower because they know they won't have to provide service after the sale, and implied that they wouldn't do warranty work if I didn't buy it from them. If something goes wrong with the slide, or a jack, during the warranty period, doesn't Tiffin pay the service department to fix it? It makes me very upset to think that the sales tactic at my local dealer is "pay our outrageous price, or prepare to be stuck with a coach that can't be serviced." Perhaps the salesman I talked to doesn't understand the basics of supply and demand, and that when demand is down, they will have to lower their price to compete. And to threaten a potential customer by saying you will be screwed if you don't buy it form us, is just unacceptable. Rant over....
I'd tell that dealer to go and pound sand. Get you MH where you get the best deal. With todays economy and how things are going in the RV industry, sounds like that dealer just cut his own throat.
I'd also tell Tiffin what transpired and hint that because of that, you are considering another brand.
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gunny357
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12/21/08 08:47am |
Class A Motorhomes
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RE: Catepilar 3208 Oil Pan
Whats wrong with the existing oil pan?
Usually easy to repair.
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gunny357
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12/21/08 06:40am |
Class A Motorhomes
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