How to reassmble "quick connect" heater hose clamps in '98 Club Wagon?

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Jerry - 30 Jan 2005 20:25 GMT

My manual lacks adequate instructions. What is the order arrangement of the
parts?
I have cleaned all connections, and bought new 5/8" nylon retainer. I
bought two new O rings for each tube size; those tubes measure 5/8" and 3/4"
O.D. (Not metric!) The 3/4" retainer was unavailable at the store, but the
old one is OK.
I noticed a fiber washer fell out of each joint, upon disassembly yesterday.
There were two O rings on one, and probably only one O ring on the other.
What is the standard sequence of parts installation? How many O rings? Why
TWO??
This installation must be done in an inconvenient place, so I can't get a
good look at progress.
Yesterday, I removed the two connections with great difficulty. I acquired
the forked removal device, to no avail; it was too big, even though labelled
for my vehicle. I used my bare hands. It took over an hour of struggling.
Putting it together should be easy. I just don't want to make a mistake and
have to disassemble it again.

Thanks

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Jerry - 31 Jan 2005 00:16 GMT

I think I figured this out. Retainer, O-ring, spacer, O-ring, pushed into
holder. Slip all onto tube. O-rings must be lubricated appropriately.

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Backyard Mechanic - 31 Jan 2005 02:51 GMT

> I think I figured this out. Retainer, O-ring, spacer, O-ring, pushed into
> holder. Slip all onto tube. O-rings must be lubricated appropriately.

Sorry I missed this... yes, you are right. there's a plastic or nylon spacer
between the O-rings

lube both the O-rings AND the tube

FYI: Silcone lube is superior for the purpose. Cheap at lowes or Home Depot
plumbing dept

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- Yes, I'm a crusty old geezer curmudgeon.. deal with it! -

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Jerry - 31 Jan 2005 07:17 GMT

Yeah, I was wondering about lube. I have a fine silicone lube intended for
plumbing joints, which I bought at a swimming pool supply. This is what I
plan to use, even though I am taking the chance that it will stand the high
temperature of the heater coil flow. Swimming pool plumbing never gets that
hot, certainly! But this silicone grease seems to be far superior to the
brown waxy stuff I use on bathroom faucets.

Turns out I have to buy a 3/4" retainer, so I'm grounded until tomorrow
morning.

> > I think I figured this out. Retainer, O-ring, spacer, O-ring, pushed into
> > holder. Slip all onto tube. O-rings must be lubricated appropriately.
>
> Sorry I missed this... yes, you are right. there's a plastic or nylon spacer
> between the O-rings

I appreciate your concurrence on this. I found a less-than-explicit picture
in my manual, and it lacked adequate captioning. I continue to be amazed at
how far the authors of manuals go, only to stop just short of adequately
explaining some things.

> lube both the O-rings AND the tube
>
> FYI: Silcone lube is superior for the purpose. Cheap at lowes or Home Depot
> plumbing dept

I looked up the recommended Ford lube, and it was described as some sort of
highly viscous siloxane:

ST-29 Organofunctional Dimethyl Silicone

ST-29 is an extremely stable polysiloxane copolymer fluid with no chemical
additives and a
viscosity of 24,000 centistokes.
This fluid is similar to ST-24, with a much higher viscosity.
.
Applications:
. moisture barrier - lubricant - corrosion barrier - release agent
.
Properties:

. Reduces sliding friction of metal on plastic. Damping fluid for
instruments - Stable polysiloxane copolymer fluid - No chemical additives
.
Conforms To:
.
. GM Specification 9985353
Ford Specification ESF-M99B112-A

.

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