The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-02-2019, 02:35 PM   #1
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Radiator heater hose fitting

Hello, working on 75 blazer, dont think radiator is stock, on passenger side from top down it has filler neck and cap, then overflow hose, then a heater hose fitting, the fitting appears to be plastic and screw into radiator then hose clamps on that, the plastic fitting is leaking, im hopping I can get a new fitting, not a new radiator, anybody seen this, i asked at oriellys and two shops, they didn't know, they didn't seem to sharp though. Below those three things are two transmission cooler lines, and then the main radiator hose!
Attached Images
 

Last edited by JR1; 01-02-2019 at 03:38 PM. Reason: I would also like to post the question on the truck board
JR1 is offline   Reply With Quote
Old 01-02-2019, 04:23 PM   #2
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

I would clean the area(sanding) around the fitting, look for cracks. Take out the fitting and check the threads, reinstall with a brass fitting of the correct size and thread sealer(perm a tex), then make sure the hose is supported in some fashion

If it is cracked, time for a radiator shop, or try to soldier it yourself, but I suspect the plastic threads gave out
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 01-02-2019, 05:16 PM   #3
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Thank you, the fitting itself is cracking between threads and where the hose clamps on, where would I get a fitting this size? This seems like a common part but nobody seems to know about it.
JR1 is offline   Reply With Quote
Old 01-02-2019, 06:44 PM   #4
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

You could start at Jeg's, pretty common fitting in NPT with barbed end. about 28 pages of fittings

what size is it? I have extras laying around
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 01-02-2019, 06:52 PM   #5
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Dont know, thought it might break if I took it off, since it's a very slow leak I thought I would wait till I found a part before taking it out, since you seen to think I'll be able to get one I'll take it out and measure it! What is it called at jegs?
JR1 is offline   Reply With Quote
Old 01-02-2019, 06:57 PM   #6
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Btw what's NPT
JR1 is offline   Reply With Quote
Old 01-02-2019, 07:46 PM   #7
simicrintz
Registered User
 
Join Date: Dec 2017
Location: Escondido
Posts: 210
Re: Radiator heater hose fitting

Quote:
Originally Posted by JR1 View Post
Btw what's NPT
Google is your friend

National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings. In contrast to straight threads that are found on a bolt, a taper thread will pull tight and therefore make a fluid-tight seal."
__________________
-Bruce
1971 K5 Blazer 4WD
simicrintz is offline   Reply With Quote
Old 01-02-2019, 07:50 PM   #8
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Awesome, thanks, I'll pull the part and measure, I know the hose end is for 5/8 inch hose, just gotta measure the thread end, from looking at jegs, 1/2 is most common, so I'm guessing that!
JR1 is offline   Reply With Quote
Old 01-02-2019, 10:41 PM   #9
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

BTW, buy yourself a thread gauge, it will tell you how many threads per inch.

also try to buy a brass fitting, incase you have to solder the fitting to the tank.

Is your radiator brass?

p/n 984010 is earls in aluminum, but there are angled ones that may help for hose placement
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim

Last edited by jaros44sr; 01-02-2019 at 10:46 PM.
jaros44sr is offline   Reply With Quote
Old 01-02-2019, 10:47 PM   #10
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Thanks, maybe it is brass, its just a basic radiator, id eventually like to go aluminiun. Im supposed to be learning all this but life keeps getting in the way
JR1 is offline   Reply With Quote
Old 01-02-2019, 10:49 PM   #11
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

Quote:
Originally Posted by simicrintz View Post
Google is your friend

National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings. In contrast to straight threads that are found on a bolt, a taper thread will pull tight and therefore make a fluid-tight seal."
or NPS, national pipe straight
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 01-02-2019, 10:53 PM   #12
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

Quote:
Originally Posted by JR1 View Post
Thanks, maybe it is brass, its just a basic radiator, id eventually like to go aluminiun. Im supposed to be learning all this but life keeps getting in the way
Life always gets in the way, I'm laid up with muscle spasms right now or I'd be working on my truck...1 hour heating pad and 1 hour of ice bag plus pain meds
Glad I have the motor trend channel to keep me entertained
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 01-02-2019, 11:17 PM   #13
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Wow, now I feel bad for even joking, I hope you get better!
JR1 is offline   Reply With Quote
Old 01-03-2019, 10:04 AM   #14
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 8,269
Re: Radiator heater hose fitting

No problem, getting old sucks, but it sure beats the alternative LOL

Let me know how you make out with the fitting
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 01-03-2019, 12:23 PM   #15
rpmerf
Registered User
 
rpmerf's Avatar
 
Join Date: Feb 2011
Location: Parkville, MD
Posts: 741
Re: Radiator heater hose fitting

Home Depot, Lowes, whatever tend to carry brass barb fitting. They usually even have things there to help find the thread. You want your barb size to be 5/8", you can use the display to find your thread. Go for brass rather than plastic.
__________________
1970 C20 Custom Camper - 350, TH350
1997 GMC Suburban
1994 Acura Integra GSR
1987 Dodge Daytona Shelby Z
rpmerf is offline   Reply With Quote
Old 01-03-2019, 02:12 PM   #16
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Thanks guys, I have a home depot list anyway, ( who doesnt). I notice you truck listed, u also have a 69, CAP custom camper longhorn 350 th400.
JR1 is offline   Reply With Quote
Old 01-03-2019, 02:28 PM   #17
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Dang auto correct, I have a 69 c20 custom camper longhorn 350/400
Attached Images
 
JR1 is offline   Reply With Quote
Old 01-03-2019, 09:50 PM   #18
rsavage
Senior Member
 
rsavage's Avatar
 
Join Date: Aug 2009
Location: Alden NY
Posts: 2,465
Re: Radiator heater hose fitting

Nice rig. I had a 71 c30 longhorn with a 402 TH400. Single rear. Had a big camper like yours an pulled my boat withit at the same time. Had a step bumper with 2X2" square tube so I could extend the bumper beyond the camper. In a moment of stupidity, I sold it years ago.
__________________
1961 C1 Corvette
69 Blazer 4 WD. Latest restoration project
2018 Durango 392 Hemi SRT
rsavage is online now   Reply With Quote
Old 01-03-2019, 10:14 PM   #19
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Well, it seems we humans get bored with stuff fir sure! I took this apart, its in the yard disintegrating until i freakout and cant believe i did that, then FIX IT UP AGAIN! It needs a more powerful motor! For SAFETY reasons of course!
JR1 is offline   Reply With Quote
Old 01-04-2019, 08:59 AM   #20
rpmerf
Registered User
 
rpmerf's Avatar
 
Join Date: Feb 2011
Location: Parkville, MD
Posts: 741
Re: Radiator heater hose fitting

Nice truck! I love seeing old truck still working. That's an impressive load it's hauling.

I dig the buggie too. My father has has a 73 VW Thing since before I was born. I learned to drive stick in that Thing.
__________________
1970 C20 Custom Camper - 350, TH350
1997 GMC Suburban
1994 Acura Integra GSR
1987 Dodge Daytona Shelby Z
rpmerf is offline   Reply With Quote
Old 01-04-2019, 01:29 PM   #21
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Thanks, the c20 longhorn handles the weight fine, the 350 motor complains the whole time But made it to the desert and back a few times, SO VINTAGE ITS FUN, camper is a 1971 vista Liner!
Attached Images
  
JR1 is offline   Reply With Quote
Old 01-04-2019, 08:13 PM   #22
simicrintz
Registered User
 
Join Date: Dec 2017
Location: Escondido
Posts: 210
Re: Radiator heater hose fitting

Those bikes look like they are BLUE!!! Don't you know real bikes are red and orange

OW? Superstition? Where are you at?
__________________
-Bruce
1971 K5 Blazer 4WD
simicrintz is offline   Reply With Quote
Old 01-04-2019, 08:20 PM   #23
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

South of OW, fish creek old mine road area
JR1 is offline   Reply With Quote
Old 01-04-2019, 08:56 PM   #24
simicrintz
Registered User
 
Join Date: Dec 2017
Location: Escondido
Posts: 210
Re: Radiator heater hose fitting

Very cool! WR's? What size?
__________________
-Bruce
1971 K5 Blazer 4WD
simicrintz is offline   Reply With Quote
Old 01-04-2019, 10:01 PM   #25
JR1
Registered User
 
Join Date: Jan 2014
Location: Vista (S.D. County) California
Posts: 70
Re: Radiator heater hose fitting

Old yz250 's, 2002, good bikes, WE SUCK THOUGH! BUT LOVE THE DESERT
JR1 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
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

Forum Jump


All times are GMT -4. The time now is 06:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com