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03-09-2016, 08:18 PM
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#1
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Powertech Generator coolant and hoses
I did some checking on my generator today. It only has 250 hours on it but due to age I want to change coolant and hoses if possible. I removed the front bumper. That gave me access to a front cover plate. Inside all that was accessible was what looked like an air filter canister and a couple of air filter hoses. I did find a bad breather hose that I can replace. Nothing even close to the radiator hoses or access to drain the radiator. I would be happy if I could just get the old coolant out but alas no access in sight. Would it be possible to get a small tube down the filler neck to try and siphon it out? I know it's a long shot but it looks as though the entire generator would need to be removed and I don't have the equipment to handle that so I'm guessing a competent shop might have 10 plus hours in this job plus parts. Any ideas?
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-09-2016, 09:05 PM
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#2
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Here is a pic where the access panel behind the bumper is removed. You can see the bad hose on the left.
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-10-2016, 09:37 AM
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#3
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Quote:
Originally Posted by noserider
I did some checking on my generator today. It only has 250 hours on it but due to age I want to change coolant and hoses if possible. I removed the front bumper. That gave me access to a front cover plate. Inside all that was accessible was what looked like an air filter canister and a couple of air filter hoses. I did find a bad breather hose that I can replace. Nothing even close to the radiator hoses or access to drain the radiator. I would be happy if I could just get the old coolant out but alas no access in sight. Would it be possible to get a small tube down the filler neck to try and siphon it out? I know it's a long shot but it looks as though the entire generator would need to be removed and I don't have the equipment to handle that so I'm guessing a competent shop might have 10 plus hours in this job plus parts. Any ideas?
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First let me say you have my sincere sympathy. Why any mfg. would put a generator in without a slideout tray is beyond me. They have no compassion for the guy who has to service it.
I have the PowerTech 7000 in my Dutch Star but it's on a slideout tray. It has the 3 cyl. Kuboda engine. From your picture I can see your layout is different than mine. Mine has a drain petcock on the bottom of the radiator that you access from underneath. You will also have to have access to the radiator cap to refill the radiator. If you want to change the hoses you'll have to remove all the covers, both sides and top. If you have the Kuboda engine your oil filter is on the drivers side of engine. There's also a drain petcock on the engine oil you access from underneath.
Hope this little bit of info helps in some way.
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2008 Nash 25S
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03-10-2016, 11:36 AM
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#4
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Quote:
Originally Posted by Rotten-Red
First let me say you have my sincere sympathy. Why any mfg. would put a generator in without a slideout tray is beyond me. They have no compassion for the guy who has to service it.
I have the PowerTech 7000 in my Dutch Star but it's on a slideout tray. It has the 3 cyl. Kuboda engine. From your picture I can see your layout is different than mine. Mine has a drain petcock on the bottom of the radiator that you access from underneath. You will also have to have access to the radiator cap to refill the radiator. If you want to change the hoses you'll have to remove all the covers, both sides and top. If you have the Kuboda engine your oil filter is on the drivers side of engine. There's also a drain petcock on the engine oil you access from underneath.
Hope this little bit of info helps in some way.
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I can actually get to the radiator cap and the overflow tank. They are in the front. But for the life of me I can't figure out if it's possible to get the coolant out without removing the generator. I think the radiator is in the back but the 2 large covers on the side and top can't be removed without pulling the generator. I can get to the fuel, oil and air filter and have changed them all. I'm a little concerned with old coolant from 2002 even though the gen has only 250 hrs. I could live without changing the belts and hoses for a couple more years but really want to refresh the coolant.
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-10-2016, 08:09 PM
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#5
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Quote:
Originally Posted by noserider
I can actually get to the radiator cap and the overflow tank. They are in the front. But for the life of me I can't figure out if it's possible to get the coolant out without removing the generator. I think the radiator is in the back but the 2 large covers on the side and top can't be removed without pulling the generator. I can get to the fuel, oil and air filter and have changed them all. I'm a little concerned with old coolant from 2002 even though the gen has only 250 hrs. I could live without changing the belts and hoses for a couple more years but really want to refresh the coolant.
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The radiator is in the very back. It's hard to believe they didn't put a drain petcock in the bottom of the radiator to drain it. Did they have a drain petcock for the oil drain underneath? My side and top covers don't cover the radiator, they only come to the radiator.
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2008 Nash 25S
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03-11-2016, 02:32 AM
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#6
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Senior Member
Spartan Chassis
Join Date: Dec 2011
Location: Anywhere, USA
Posts: 451
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Your PowerTech generator manual can be found here: Manuals | Power Technology Southeast Inc
Good Luck!
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03-11-2016, 08:26 AM
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#7
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Quote:
Originally Posted by shaman52
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I have the manual. Unfortunately it's not much help as they don't consider the enclosures on these generators. I'm going out to the coach tomorrow and have another look underneath. My oil has a drain plug that's accessible on the bottom. The manual shows both a block drain and a radiator drain.
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-11-2016, 06:39 PM
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#8
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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I found the petcock for my radiator. It's in the very back (bottom) close to where the fuel lines come in to the unit. I also removed the small access panel on the bottom in the back that gives you access to the oil and fuel filter and shined a light up inside. I think I may have located the petcock for the block but unfortunately it's not accessible. There is an exhaust pipe that's wrapped in a special orange colored insulation that is snug up against it and no way to remove the insulation. The plan is to get as much coolant out of the radiator petcock as possible and then fill it. I will then run the generator and repeat a couple more times. Hopefully that will be sufficient. I was also able to get a peek at the belts and one of the hoses through the oil filter access panel on the bottom. I could not inspect them properly but what I could see looked in really nice condition (hose not swollen or dry). I'm going to gamble on them for now since changing would require removing the generator and with just over 250 hours I think I have a chance at running for a couple more years without failure. I am a little concerned about the petcock being rusted and breaking with I attempt to open it. I'll spray it with some lubricant and let it work for a few days. BTW I always forget which way opens the petcock. Clockwise or CCW? Anyone??
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-11-2016, 08:21 PM
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#9
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Quote:
Originally Posted by noserider
I found the petcock for my radiator. It's in the very back (bottom) close to where the fuel lines come in to the unit. I also removed the small access panel on the bottom in the back that gives you access to the oil and fuel filter and shined a light up inside. I think I may have located the petcock for the block but unfortunately it's not accessible. There is an exhaust pipe that's wrapped in a special orange colored insulation that is snug up against it and no way to remove the insulation. The plan is to get as much coolant out of the radiator petcock as possible and then fill it. I will then run the generator and repeat a couple more times. Hopefully that will be sufficient. I was also able to get a peek at the belts and one of the hoses through the oil filter access panel on the bottom. I could not inspect them properly but what I could see looked in really nice condition (hose not swollen or dry). I'm going to gamble on them for now since changing would require removing the generator and with just over 250 hours I think I have a chance at running for a couple more years without failure. I am a little concerned about the petcock being rusted and breaking with I attempt to open it. I'll spray it with some lubricant and let it work for a few days. BTW I always forget which way opens the petcock. Clockwise or CCW? Anyone??
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The petcock opens CCW.
My hoses & belt still look good on a 2000 model. So not changing them either. There's not much strain on the belt since it only turns the water pump.
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2008 Nash 25S
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03-11-2016, 09:24 PM
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#10
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Quote:
Originally Posted by Rotten-Red
The petcock opens CCW.
My hoses & belt still look good on a 2000 model. So not changing them either. There's not much strain on the belt since it only turns the water pump.
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OK. CCW it is. If I'm going to break something, I at least want to be turning a rusty old petcock the CORRECT way! Thanks for all the help Rotten. I was feeling lonely on this thread without your input .
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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03-12-2016, 08:53 PM
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#11
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Quote:
Originally Posted by noserider
OK. CCW it is. If I'm going to break something, I at least want to be turning a rusty old petcock the CORRECT way! Thanks for all the help Rotten. I was feeling lonely on this thread without your input .
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Your welcome. I don't think you'll have any trouble with the petcock, mine turned easily. Good luck.
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2008 Nash 25S
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03-15-2016, 06:56 PM
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#12
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Senior Member
Join Date: Oct 2013
Location: Houston
Posts: 1,374
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Success
I got the coolant changed in the generator today. The petcock was not rusted closed! I plan to run it for a couple hours and then drain and fill 1 more time. Glad to know I have fresh coolant in the generator.
__________________
2002 Newmar Kountry Star 3669
Freightliner 300HP Cummins
Towing 2014 Honda CRV EX-L & 2010 Tundra W/Remco DD
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