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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> General Rodding Tech> Enlarge heater hose end from 5/8" to 3/4"?
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Topic Review (Newest First)
12-10-2012 11:10 PM
staleg That is correct. Just forget about part stores the way you know them. We don't have those in Norway.

Here they won't/can't find anything without a part number or the cars' production year/type.
Searching a car part based on the part's look is simply not possible.

The way I see it, I have 2 options:
1. Try fitting a reducer.
2. Enlarge the firewall holes to accept a 3/4 hose, and use that all the way.
12-10-2012 03:39 PM
Irelands child
Quote:
Originally Posted by MARTINSR View Post
You need to get down to a real parts store and they will likely have just what you need. If they don't have it in stock they will be able to get it for you.

Brian
Brian - the few times I've been to Norway, I don't recall seeing a chain parts store like Pep Boys or Auto Zone.

Dave W
12-10-2012 01:59 PM
cobalt327 As luck would have it I first ran across them looking for the two ended heater hose in the Gates catalog. Till then I hadn't heard of them.
12-10-2012 01:48 PM
123pugsy Hey Cobalt.

Those are quite handy. Thanks for posting them.
12-10-2012 12:21 PM
cobalt327
Quote:
Originally Posted by staleg View Post
Thanks!

As an alternative, is it possible to heat the hose to make a bend on it? not much. Maybe 10-15 degrees.
Possible solution:

Unicoil - Bend hose into any shape!

Goodyear E-Z Coil

U-Bend Hose Coil from HBD/Thermoid, Inc.

Gates Unicoil - when curved/molded hose isn't available. (I think this is also in the catalog I linked to earlier)
12-10-2012 08:15 AM
123pugsy
Quote:
Originally Posted by staleg View Post
Thanks!

As an alternative, is it possible to heat the hose to make a bend on it? not much. Maybe 10-15 degrees.
This may be a problem.
12-10-2012 06:53 AM
staleg Thanks!

As an alternative, is it possible to heat the hose to make a bend on it? not much. Maybe 10-15 degrees.
12-09-2012 07:12 AM
timothale
norway parts stores

Building a hot rod is probably a challenge where you live. I looked at your build pict's IT all looks good I need to build the doors for the nash Roadster then start on the chassis, I have a Jag rear and F 40 Jag for the front.
12-09-2012 05:39 AM
staleg That was my initial question. I'll give it a try then.
12-09-2012 05:11 AM
cobalt327
Quote:
Originally Posted by staleg View Post
The holes in my firewall accepts no bigger than 5/8" hoses, and the distance from the heater outlest to the inside of the firewall is very short. That's why.

I'll check out the Gates part numbers. Thanks for the link!
No problem, good luck.
12-09-2012 05:03 AM
123pugsy
Quote:
Originally Posted by staleg View Post
The holes in my firewall accepts no bigger than 5/8" hoses, and the distance from the heater outlest to the inside of the firewall is very short. That's why.

I'll check out the Gates part numbers. Thanks for the link!
Try warming it up with a heat gun. It should soften up enough to go on. I've done it with a lot of hoses with no issues.
12-09-2012 05:00 AM
staleg The holes in my firewall accepts no bigger than 5/8" hoses, and the distance from the heater outlest to the inside of the firewall is very short. That's why.

I'll check out the Gates part numbers. Thanks for the link!
12-09-2012 01:56 AM
dinger
Quote:
Originally Posted by cobalt327 View Post
Trying to stretch a 5/8" heater hose out to 3/4" will weaken it IMHO. You might get it to physically fit, but the strength would be compromised I believe.

No room for a reducer like this (they also come in brass that are shorter)?

I may be missing something here, but why would you not run a 3/4 inch hose from the heater core, say about 10 inches long, then put this reducer and run 5/8 from there on out?
12-08-2012 04:08 PM
MARTINSR
Quote:
Originally Posted by staleg View Post
What would be perfect for me is 3-4 ft of straight 5/8" hose, with a 3/4" enlargement in one end.
You need to get down to a real parts store and they will likely have just what you need. If they don't have it in stock they will be able to get it for you.

Brian
12-08-2012 03:05 PM
cobalt327
Quote:
Originally Posted by staleg View Post
What would be perfect for me is 3-4 ft of straight 5/8" hose, with a 3/4" enlargement in one end.
Gates Dual I.D. Heater Hose
Specially designed for heater hose applications requiring changes in diameter.

For part numbers, see page A26, here.
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