1995 GMC Sierra broken threads

1995 GMC SIERRA
165,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
BILLMELATER
  • MEMBER
  • 4 POSTS
I hacksawed out the broken stub of the quick disconnect heater hose fitting on the intake manifold, but cut too deeply, leaving a saw kerf in the threads. Pipe dope does not seal the threads. Will something like JB Weld seal it, at least for a few months?
Thanks
May 28, 2008 at 5:41 PM
Advertisement
Avatar
BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
i wouldnt attempt it, replace the hose and prevent the rigging.

fix it the right way so it lasts.
May 29, 2008 at 2:34 AM
Avatar
BILLMELATER
  • MEMBER
  • 4 POSTS
[quote:e13fd062e5="blackop555"]i wouldnt attempt it, replace the hose and prevent the rigging.

fix it the right way so it lasts.[/quote:e13fd062e5]
Thanks for your reply, but I don't understand.
I'm trying to install a new heater hose fitting, but because of the damage to the manifold's threads, it won't seal up watertight, even with lots of pipe dope. What kind of thread sealant will plug a small saw cut in the threads and withstand the water's heat and pressure?
May 29, 2008 at 3:17 AM
Avatar
BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
you can try some pipe cemen and put the hose on and you can use a hoseclamp also to try and tighten it down more.

or you can just replace the broken part.
May 29, 2008 at 11:25 AM
Avatar
BILLMELATER
  • MEMBER
  • 4 POSTS
[quote:095ffe9042="blackop555"]you can try some pipe cemen and put the hose on and you can use a hoseclamp also to try and tighten it down more.

or you can just replace the broken part.[/quote:095ffe9042]
May 29, 2008 at 1:15 PM
Avatar
BILLMELATER
  • MEMBER
  • 4 POSTS
[quote:13cc8cf106="billmelater"][quote:13cc8cf106="blackop555"]you can try some pipe cemen and put the hose on and you can use a hoseclamp also to try and tighten it down more.

or you can just replace the broken part.[/quote:13cc8cf106][/quote:13cc8cf106]
For anyone who may have actually understood my question, the problem has been solved. After re-tapping the threads in the intake manifold, I used plenty of JB Weld as a thread sealant, and the new quick disconnect leading to the heater core is now watertight.
Thanks for your help,
Bill.
Jun 1, 2008 at 4:38 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.