Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Why do the heater hoses keep leaking on me at the firewall!!!???
#1
New repop Chrysler hoses with numbers and what not with new clamps. The hoses just will not stay sealed! They are fine on the nipples of the water pump. I have taken them off and cleaned them, tried putting the brown molasses stuff on them...everything!

I had a screw clamp on them and that held but the OEM style clamps just don't seem to have enough bite.
My theories are hose wall on these hoses are thinner not allowing a good clamp and possibly the clamps not getting enough pinch. I even tried bending them slightly to aid that. Any other time you have to pull a hose you almost have to cut it off. I hate antifreeze messes. I want to keep the oem look but am temped to just put the screw clamps on. I want to cut the hose back a bit to start fresh but of course the hoses are cut with barely any extra to play with.

Thoughts?
Reply Purge Spammer

#2
They should be 5/8ths wire clamps. I would trim off portion that was clamped on, then apply a "little" silicone sealer around the nipples of the heater core tubes and push the hoses on and set the clamps on the hoses right up next to the firewall. Let it all set overnight so the silicone can set, so if that work, that's what I did.
Objects quickly DISAPPEAR in the rearview mirror and PLEASE stay seated until the ride comes to a complete stop!!
Reply Purge Spammer

#3
Might try that. I think I can rob an inch without pulling them too tight. As it is now I just touch the hose and it starts spraying out when hot.
Reply Purge Spammer

#4
I have struggled for 2 months fighting with hose diameters and the reproduction factory clamps. I have not gotten to the point of putting in antifreeze but I could tell it was not going to work. I finally conceded and found these clamps. They work really nice and look like something that "would" have come from some factory...

http://www.hcl-clamping.com/Double-Wire-...ollfam-P17

10493]10494]


Attached Files Thumbnail(s)
       
Reply Purge Spammer

#5
They look nice.

I noticed the idler pulley you have there Jim, did you figure out how to change the bearing in it? I have one from a friend who wants a new bearing put in it. The only way I can think of taking it apart is to "un-peen" the metal around the bearing then press the stud out. What did you do?
President, New England chapter of Coronetaholics anonomous.
Reply Purge Spammer

#6
ws27 Wrote:They look nice.

I noticed the idler pulley you have there Jim, did you figure out how to change the bearing in it? I have one from a friend who wants a new bearing put in it. The only way I can think of taking it apart is to "un-peen" the metal around the bearing then press the stud out. What did you do?

It is original. I just glass bead blasted it and painted it. It seemed nice and tight so I left it alone.
Reply Purge Spammer

#7
When I was having problems with the 5/8" Mopar reproduction clamps, I found some in my stash of parts that I had purchased form a Corvette supplier. They were 5/8" clamps, but just a little smaller. They solved the leaking problem for me. You might check with Paragon.
Reply Purge Spammer

#8
Damn Jim, that motor is way too clean man, you drive her every weekend? Wish my motor was spotless as that,good job buddy!!!!
66 Coronet 500 convertible 440,727,2500 stall,was 430 hp, we ain't got a clue now, just get in and enjoy the rumble
Reply Purge Spammer



Possibly Related Threads…
Thread Author Replies Views Last Post
  Trans leaking like a sieve after parked-couple other leaks. 67RTBlue 12 7,985 08-22-17, 08:08 AM
Last Post: crlush
  Sealing heater hoses to core 67RTBlue 14 9,158 09-04-16, 09:57 PM
Last Post: markz
  Heater control cables-routing question 67RTBlue 4 4,420 06-16-16, 03:23 PM
Last Post: 67RTBlue
  Is the firewall different on a factory power brake car? 67RTBlue 2 3,379 04-07-16, 07:57 PM
Last Post: theman440
  Fuel filler leaking cnmsales 5 4,006 12-18-15, 06:01 PM
Last Post: thebankerstoy
  67 heater blower motor dont work BooBoo 3 3,511 03-30-13, 08:54 PM
Last Post: beefman
  convertable top cylinder leaking brianhouchins 0 3,234 01-23-13, 11:52 PM
Last Post: brianhouchins

Forum Jump:


Users browsing this thread:
1 Guest(s)

Powered By MyBB, © 2002-2024 Melroy van den Berg.