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Topic: How to reseal overflow hose nipple to coolant tank fill neck ?? (Read 673 times) previous topic - next topic

How to reseal overflow hose nipple to coolant tank fill neck ??

Overflow tank is not getting warm or level changing due to coolant expansion, got to looking and the nipple for the hose to the overflow tank is loose and loosing pressure, leaking at the fill neck..
What would be a good solder for re attachment?
JB Weld or??
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #1 –
If you mean the metal tank that the radiator cap fits on,I would remove the tank and take it to a shop to repair,would use the jb as
a last resort.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #2 –
I had the same problem. I just cleaned it up and then with a small plumbing torch, soldered it. I used a piece of backerboard to keep the heat off the insulation above. Now I have all backerboard in the engine compartment so soldering is not a problem.

This may be a problem on a lot of coaches of this vintage.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #3 –
Thanks all, took the tank off and into the radiator shop it went... for a new fill neck..(neck had crack issues as well.
And a whole lotta rust behind the tank...will take care of that while waiting for tank to be done.
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #4 –
Been there done that on the rust last week.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #5 –
Quote from: craneman –
Been there done that on the rust last week.
really surprised  me how much rust there was....
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #6 –
Put some spacers behind it when you re-install it. It keeps it from touching the panel.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #7 –
Quote from: craneman –
Put some spacers behind it when you re-install it. It keeps it from touching the panel.
Thanks for the heads up...
 won't take much mebbe 2 washers per
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #8 –
I removed the 90 degree elbow, heated it up and removed the copper filler that the rad cap attaches to.. The solder job was terrible, it must have been leaking slalom amounts for years.. Cleaned everything up, used acid core solder, not resin core which is used for wiring, a propane torch, and soldered it up.. After cooling and cleaning , put the cap on, placed my hand. Over the bottom , a plastic hose on over flow, sucked on the hose, it held a vaccum, so  replaced it , topped it up and all was well.....
2001 U320 40ft
Build #5867
2003 Tracker
VE7DOD

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #9 –
Silver-phos rod can produce a superior joint. I walk across our construction sites about every two weeks and pick it up off the ground, if you have a plumber friend or a guy that does refrigerant piping they throw them away when they get about 4-5" long cause they ain't buying it and they are to lazy to solder butts together when it gets too hot to hold.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #10 –
I'm sorry I didn't see this earlier.  I had a problem with my "neck nipple" breaking off prior to my owning the coach.  After recommendations and research, I ordered and installed the "no solder" billet neck kit.  It seemed a little pricey, but was much cheaper than having the unit removed and repaired conventionally.  The removal of old neck and the installation of this one was pretty easy.  I has held up well for about 5,000 miles.
Here's the link:  No-Solder-Filler Neck Kit
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8

Re: How to reseal overflow hose nipple to coolant tank fill neck ??

Reply #11 –
Quote from: Sven and Kristi –
I'm sorry I didn't see this earlier.  I had a problem with my "neck nipple" breaking off prior to my owning the coach.  After recommendations and research, I ordered and installed the "no solder" billet neck kit.  It seemed a little pricey, but was much cheaper than having the unit removed and repaired conventionally.  The removal of old neck and the installation of this one was pretty easy.  I has held up well for about 5,000 miles.
Here's the link:  No-Solder-Filler Neck Kit
This is referring to the engine water tank.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean