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06-17-2015, 03:41 PM
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#1
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Senior Member
Join Date: Nov 2013
Posts: 5,780
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Radiator Drain - What's Wrong with this Picture
I am in the process of changing my coolant and all the hoses on my W24. I crawled under to open the radiator petcock and found what you see in the photo below. Looks to me that someone has previously broke the petcock and glued in a plug. Am I missing something here?
I had to remove the lower hose to drain the system, although the shower was free 
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2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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06-17-2015, 03:55 PM
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#2
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: May 2009
Posts: 193
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When I changed my W22 coolant last year all the sites I lookup suggest not to touch that drain plug as it has a tendency to break. They suggested removing the lower hose and drain from there.
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Randy & Kathy
2004 Southwind 37A
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06-17-2015, 03:58 PM
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#3
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Jun 2008
Location: Glendora Ca.
Posts: 1,589
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I would say they broke it tightening it. They don't turn very far in either direction.
Mike
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2004 Monaco Monarch
Blueox, SMI, 1990 Wrangler YJ 
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06-17-2015, 04:31 PM
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#4
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Senior Member
Tiffin Owners Club
Join Date: Sep 2012
Location: Ambler, PA
Posts: 2,853
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Are you certain that it's not factory? Very few radiators have that bottom petcock anymore.
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Larry & Cheryl Oscar, Louie, Ranger & Henry (our Springers)
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06-17-2015, 06:25 PM
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#5
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Senior Member
Join Date: Nov 2013
Posts: 5,780
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Quote:
Originally Posted by PushedAround
Are you certain that it's not factory? Very few radiators have that bottom petcock anymore.
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To be honest, I don't know. Going by OEMY's web site, I expected a petcock. I would feel a lot better if I knew this was factory and not someone's repair job. I am wondering now if it will blow out some day if it is.
In that vain, does anyone know if there is a petcock on all Workhorse chassis'. Mine is a 2005 W24.
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2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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06-17-2015, 06:42 PM
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#6
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Senior Member
Join Date: Dec 2014
Location: East Tennessee
Posts: 980
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The radiator is plastic and the oem petcock is plastic.....your looks like it has been snapped off. If it ain't leaking, I'd leave it alone.
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2016 R-Pod 176T
2002 Avalanche Z71 Tow Veh
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06-17-2015, 10:13 PM
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#7
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Oct 2004
Location: Scottsdale, AZ
Posts: 1,502
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The original petcock on mine had a hole in which a 1/4" drive fit into. The petcock was like a bayonet type fitting and only twist CCW a partial turn to open. At that point, I was able to extract it completely for a free bath. I replaced it with a part from Napa
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2003 34' Dolphin 5342, W22, UP, UPGBrake, F and R Track Bars, Rear IPD sway bar, Koni FSDs, Safe-T-Plus, Scan Gauge II.. 2004 Jeep Liberty, Blue-Ox Adventa..
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06-18-2015, 08:03 AM
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#8
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Senior Member
Join Date: Oct 2002
Location: Madison, MS
Posts: 10,527
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Quote:
Originally Posted by vettenuts
To be honest, I don't know. Going by OEMY's web site, I expected a petcock. I would feel a lot better if I knew this was factory and not someone's repair job. I am wondering now if it will blow out some day if it is.
In that vain, does anyone know if there is a petcock on all Workhorse chassis'. Mine is a 2005 W24.
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FWIW, I think what you have is original. There isn't a traditional "petcock" that protrudes and may have been broken off. Hope this makes you feel better.
As others have posted, don't mess with it. Apparently it is easily broken "internally" and it is unlikely to be damaged if you use the bottom hose to drain the radiator, as you apparently have already done..
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06-18-2015, 11:38 AM
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#9
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Senior Member
Join Date: Nov 2013
Posts: 5,780
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It a almost looks like a plug. I can see the slot where the key on the peacock would ride. As stated, it has never leaked so I am not touching it.
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2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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06-18-2015, 07:51 PM
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#10
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Senior Member
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 4,501
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It's plastic and it breaks fairly easy.
5484010 AC Delco
605-1371 NAPA
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Dale
AKA - Oemy
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06-18-2015, 08:25 PM
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#11
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Senior Member
Join Date: Nov 2013
Posts: 5,780
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Do you think I have some type of plug in the radiator since it looks like none of those photos?
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2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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06-18-2015, 08:42 PM
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#12
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Jun 2008
Location: Glendora Ca.
Posts: 1,589
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I'll crawl under mine tomorrow and see what color it is. and take a pic.
Mike
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2004 Monaco Monarch
Blueox, SMI, 1990 Wrangler YJ
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06-19-2015, 05:28 AM
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#13
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Senior Member
Join Date: Nov 2013
Posts: 5,780
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Thanks.
Wondering if I should pick up the NAPA piece and throw it into the spare parts box just in case it should be a problem on the road.
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2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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06-19-2015, 06:00 AM
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#14
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Senior Member
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 4,501
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From what I have seen and the number of phone calls I have had most if not all WH chassis use this drain plug.
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Dale
AKA - Oemy
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Linear Mode
