Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 05-30-2008, 02:08 PM   #15
Alpine Owners Club
Join Date: Jul 2009
Posts: 95
I seen a add in Trucker mag.for rads. in the $600 range.It might be worth the call.866-920-2220

APEXMAN is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-03-2008, 09:32 AM   #16
Alpine Owners Club
Join Date: Dec 2004
Location: Anthem, Arizona
Posts: 41
I now have the slow radiator leak on my 2005. Need opinions as to using a stop leak additive as a short term solution until I get back to the Phoenix area in August/September time frame.

John Neff
2005 34' Alpine
Anthem, AZ
John Neff is offline   Reply With Quote
Old 06-03-2008, 10:41 AM   #17
Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,172
Before that, and if you can reach the area of the leak, I'd take a run at a JB-Weld repair. First fully dry the break, then clean the area w/fine sandpaper, then "wet" the area & 3/8" around w/fresh JB-Weld and add a piece of Tyvek fabric & mash it onto the wetted area, then build up JB-Weld on top for a 1/8" thickness. This can always be buffed off, and if it doesn't work you can try other repairs up to & including buying a new radiator. My $.02.
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 06-03-2008, 10:56 AM   #18
Senior Member
Join Date: Oct 2003
Location: Las Vegas
Posts: 105
Mike and John.
Normal problem is aluminium core tubes crack and pull koose from end tanks because of contraction and expansion of aluminium. Impossible to get at to try to repair. I think the replacement radiator from Radiator specialities is still aluminium. if your going to keep coach the couple of hundred more for a copper/brass core and steel tanks is a no brainer. Good luck. Larry
alpinerver is offline   Reply With Quote
Old 06-03-2008, 01:09 PM   #19
Senior Member
Join Date: Jun 2005
Location: Abington, PA
Posts: 1,103
I know in the days of old we just used a can of Barr's stop leak and it generally fixed everything. Is that a ridiculous suggestion in this case?
Ted & Carol Ulmer
2005 Alpine 34', 34FDDS
2006 PT Turbo pusher
Ted III is offline   Reply With Quote
Old 06-03-2008, 01:15 PM   #20
Senior Member
jerry davis's Avatar

Alpine Owners Club
Join Date: Oct 2005
Location: fremont, ca
Posts: 596
Every mechanic I've spoken with has been against the use of a product like Barrs stop leak. They say the stuff really gums up the system. Believe it or not I has a radiator guy recommend regular black pepper (ground of course) for a short term repair of a small leak. Seems the flakes find the hole and stop it up without getting all over the system.
Jerry and Judy Davis
Fremont, California
05-06 36'FDDS
toad 2012 Jeep Wrangler Sahara
jerry davis is offline   Reply With Quote
Old 06-03-2008, 02:34 PM   #21
Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,172
Larry- In this case the OEM radiator used for a string of coaches has a design defect IIRC where a mounting bracket weld hits the aluminum tank. So the leak isn't in the tank/tube seal or in a tube. Coaches w/that defect have had a fairly reliable failure around 10,000 miles plus or minus and Radiator Specialties has done a lousy job of stepping up.
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 06-03-2008, 02:58 PM   #22
Junior Member
Join Date: Apr 2006
Posts: 26
Did WRV send something out to the owners telling them about this defect? Did WRV pick up the repair/replacement tab? Or did you have to return to the factory for repair or go to a ralley?
granny is offline   Reply With Quote
Old 06-03-2008, 07:06 PM   #23
Senior Member
Join Date: May 2006
Location: Washington State
Posts: 866
I don't think WRV picked up too many radiator tabs. They relied on the Radiator Specialties, which warranted the radiator for 1 year from the date of manufacture of the radiator. WRV's warranty is well-enough written that it excludes the radiator warranty beyond that specified by Radiator Specialties. This is the bad news; for me it was good news since it forced my extended warranty to cover the $2900 or so of replacement cost, less my deductible.

WRV did not send anything to me on this defect; we just learned from watching the forum that it was common on radiators of similar '05/06 coach vintage.

And, I received a lot of feedback from Cummins and WRV to not put any kind of stopleak, including Barr's, in the radiator because of potential issues with the engine coolant porting.

I actually think Radiator Specialties new designs, with the rubber bushing mounts, will help alleviate the radiator issue, but if I had to pay for it myself I would have a non-aluminum radiator built.
Former Owner, 2006 36MDDS
2010 Arctic Fox 22GK Travel Trailer
2007 Toyota Tundra
OldForester is offline   Reply With Quote
Old 06-03-2008, 07:24 PM   #24
Senior Member
Join Date: Jan 2008
Location: Richland Wa.
Posts: 140
The radiator leak is caused from the core's being epoxied to the tanks. The new raditor's have the core's welded to the tanks. The fibration is just too much for the epoxy. I don't think adding Bars leak would do much unless you added about a gallon and that much would surely muck the system up. The best way to get by with a leaking radiator for a while is to loosen the radiator cap to stop the system from building pressure and then checking the fluid level often.
07 Alpine 36 sdds
MKelley is offline   Reply With Quote
Old 06-03-2008, 08:00 PM   #25
Fly'n Paws's Avatar
Join Date: Apr 2007
Location: Colorado
Posts: 46
When we had this problem we were able to run for several months before the new radiator was built and shipped to the repair facility. We exchanged the cap for one with lower pressure and that helped considerably to slow and almost stop the leak.

Fly'n Paws
2005 Alpine K9 house on wheels

Fly'n Paws

2005 Alpine Avalanche
Fly'n Paws is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
2005 Radiator Leak Fran Petersen Alpine Coach Owner's Forum 7 07-06-2008 02:39 PM
oil leak under radiator w-22 jwine Workhorse and Chevrolet Chassis Motorhome Forum 13 05-02-2008 09:45 AM
400 Isl Radiator Overflow Tank Leak! Lucchese1 Winnebago Industries Owner's Forum 2 01-05-2007 05:09 AM
2005 Ford Engine and Tranny, are they improved for 2005 Hemi New Rig Show-Off! 5 07-31-2005 02:01 PM
oil leak under radiator w-22 New Member Check-In 13 12-31-1969 07:00 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:45 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.