60 Heater Hoses

[John M.]

I have fought for three hours to get the corbin clamp on the 3/4" heater hose at the water pump to no avail. Has anybody had this problem, and did it turn out to be the hoses or the corbin clamp? The clamp will not open enough to slide over the sealing ridge. My guess is that the hose has too thick a wall thickness. The clamps are paragon and the hoses are CC. Thanks, John

[Ed Jennings]

Re: 60 Heater Hoses

John, Do you have the angled fitting on the water pump? (30 deg or so, I think). If not, the clamp will hit the water pump an dbe difficult or impossible to install. If you do have it, try installing the clamp over the fitting and then start the hose over the nipple. You can sort of "walk" the clamp to where you want it. A little vasoline or oil , etc. on the hose will help if it's real tight.

[Michael Jones]

Got same problem!

John:

Thanks for asking the same question I've got. The same hose had been installed previously so I know it fits. I had to cut about 1" off of it to remove it but getting it back on is tough!

Mike

[John M.]

Re: Got same problem!

I pulled my old original corbin clamps out of the attic and found that they would not even fit over the hose. Went to the parts store and got a peice of 3/4" heater hose just now and it measures 1.025" OD and the "Reproduction" hose measures 1.125"!!! NO WONDER! Unless someone can tell me who makes Repro hoses that are the right size, then I will take lacquer thinner and remove the markings from the new Gates hose and tak the point hit. Thanks, John

[Loren L.]

Re: 60 Heater Hoses

As Ed said above, put the clamp on the bare fitting and then put the hose on and bring the clamp on the hose from the other side of the ridge.

[John M.]

Re: 60 Heater Hoses

Loren, tried that as well . Wasted 3 hours trying to get this hose secured but finally gave up. Talked to Dr. Rebuild, and Geoffrey says that the original O.D. range per the GM drawings was 1.03-1.09. My CC hose measures 1.125, so that seems to be the problem. I am going to order new hose material from the good doctor next week! Thanks, John

[Dale Pearman]

Re: 60 Heater Hoses

Jay Price, who owns, "Corvette Rubber", is the manufacturer of most of the reproduction hoses. You might want to discuss this problem with him.

Dale.

[John M.]

Thanks Dale *NM*