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10-22-2018, 10:02 PM
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#1
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Member
Join Date: Dec 2014
Posts: 64
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plastic coolant tank leaking Help
my coolant tank on my 1994 Dynasty 230hp cummings is leaking. It is plastic, and think it is a Volvo. I tried to get part # from Monaco but they only go back to 2000 for parts. I have had RV since new. I am on he road in Astoria Oregon. Any suggestions would be welcome. I cannot drive because all the coolant leaks out. Thanks Larry
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10-22-2018, 10:13 PM
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#2
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,932
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Quote:
Originally Posted by lmcintosh
my coolant tank on my 1994 Dynasty 230hp cummings is leaking. It is plastic, and think it is a Volvo. I tried to get part # from Monaco but they only go back to 2000 for parts. I have had RV since new. I am on he road in Astoria Oregon. Any suggestions would be welcome. I cannot drive because all the coolant leaks out. Thanks Larry
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To continue your trip, go to ace hardware and purchase a plastic epoxy repair kit. Clean the tank and use the epoxy.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2014 Honda CRV toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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10-22-2018, 10:39 PM
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#3
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Junior Member
Join Date: Mar 2013
Posts: 19
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Flexseal makes a great easy fix. Also available at ace.
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10-22-2018, 10:57 PM
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#4
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Senior Member
National RV Owners Club
Join Date: Jun 2006
Location: Manhattan Beach, CA
Posts: 695
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If your tank is non pressurized and can't be repaired, buy a 1 gal plastic bottle and secure it to a place in your engine bay close to where the broken tank is. Put a hole in the cap, insert your small hose into the cap so it will reach the bottom of the bottle, fill with coolant and you are good to go.
__________________
Steve & Jeri
2004 Dolphin 5342
2000 Jeep Cherokee 4X4
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10-22-2018, 11:35 PM
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#5
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,449
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Do a Google search for surge tanks and see if you can match it up .
Dorman plastics had one that was a 98% match for my Freightliner side rad coach.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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10-22-2018, 11:50 PM
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#6
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Senior Member
Monaco Owners Club Vintage RV Owners Club
Join Date: Sep 2014
Location: anywhere U.S.A, Currently back home in Thailand!
Posts: 4,245
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I have a 96 Monaco Windsor, and did a little research, and mine is a 95 Volvo plastic surge tank off a 95 Volvo semi truck!
Yours is a 94 Dynasty, so google a 93 Volvo semi surge tank, and see what you come up with?
Also mine has been patched with what looks like a epoxy, and is holding very well, but is the reason I started looking for a replacement, just in case!
This the one that I found that fits my 96! Rail! 
__________________
Retired, and "Always on Holiday!"
1996 Monaco Windsor 38PB, "Mona" 275 HP., 8.3 Cummins, 3060 Allison 6 speed, 2001 PT Cruiser, "Bailey"
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10-22-2018, 11:54 PM
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#7
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Senior Member
Monaco Owners Club Vintage RV Owners Club
Join Date: Sep 2014
Location: anywhere U.S.A, Currently back home in Thailand!
Posts: 4,245
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Also here is the under the hood shot of my 96, and the current surge tank! Rail!
__________________
Retired, and "Always on Holiday!"
1996 Monaco Windsor 38PB, "Mona" 275 HP., 8.3 Cummins, 3060 Allison 6 speed, 2001 PT Cruiser, "Bailey"
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10-22-2018, 11:57 PM
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#8
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,449
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Guardrail's tank doesn't look too much different than that in my Freightliner.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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10-23-2018, 12:16 AM
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#9
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Aug 2018
Location: Homestead, Florida
Posts: 105
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As far as temporary fixes go, JB Weld makes a version for repairing cracks and small holes in plastic radiators and overflow tanks.
__________________
Barry, Teresa, Bella (Shitzu), & Sophie (Russian Blue)
2003 Holiday Rambler Neptune
Toad: 2002 Saturn SC2
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10-23-2018, 12:23 AM
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#10
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Senior Member
Monaco Owners Club Vintage RV Owners Club
Join Date: Sep 2014
Location: anywhere U.S.A, Currently back home in Thailand!
Posts: 4,245
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See my two replies in your other post! Rail!
__________________
Retired, and "Always on Holiday!"
1996 Monaco Windsor 38PB, "Mona" 275 HP., 8.3 Cummins, 3060 Allison 6 speed, 2001 PT Cruiser, "Bailey"
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10-23-2018, 12:15 PM
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#11
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Senior Member
Join Date: Oct 2016
Posts: 1,804
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Good morning Imcintosh; I don't know if you have had any luck with the coolant tank problem since your post yesterday. I just read it now. I have part numbers if you still need them. The Monaco part number is #2129. This number is a Volvo part number and will get you lots of results on the net. Volvo part#3966106. Prices are all over the place even on Amazon. If you need the green cap the Volvo part# 6794968. Hope this info is not too late to help you find a replacement. Good luck!
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10-23-2018, 04:12 PM
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#12
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Member
Join Date: Dec 2014
Posts: 64
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Thanks
Thanks everyone on my problem. I found a new tank from Raneys Truck Parts. They are shipping as I text. Boy I am sure glad of all the good info from everyone. Larry
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10-24-2018, 05:50 AM
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#13
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Senior Member
Monaco Owners Club Vintage RV Owners Club Holiday Rambler Owners Club
Join Date: Jul 2012
Location: Lexington, SC
Posts: 2,818
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FYI Dorman makes a replacement tank which you can get on Amazon
https://www.amazon.com/Dorman-603-55...lant+Reservoir
__________________
Vera & Ken
1998 Holiday Rambler Imperial, RR8S Chassis
Cummins 6C8.3 mechanical engine, 325HP, 3060 Allison
Towing 2014 Ford Explorer
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