stupid heater hose question

[hermanator]

88 carrera 3.2

getting ready to put engine back in and changing heater hoses with new and they are to small. All hoses list by our host are 60mm and the mount tubes are 62mm.
Am i missing something or do you try and stretch the tubes? Have the URO paper
and foil tubes.

[ADDvanced]

So I avoided pelican hoses entirely, and am using heater hoses used for diesel heater kits; this is what I'm using and I'm happy with the aesthetic, shiny black:

https://amzn.to/3nmo5pl

It says 60mm, but I was able to stretch it. My heaterboxes are aftermarket so I cut that one a couple places and clamped over it, works fine. Looks SOOOOOOO much better than stock hoses.

[ryanjboutin]

Paper hoses are junk, in my opinion.

I use aircraft ducting found here.
SCAT or SCEET will do you just fine.
62 mm = ~2.5 in

[UROParts]

Hi everyone, we make quite a few hoses in the original paper/aluminum construction style, but don't have any 62mm.

901 110 295 00: 28 x 560mm (Shiny Black)

901 110 296 00: 35 x 550mm (Shiny Black)
901 108 291 00: 35 x 780mm (Black)

644 211 921 05: 50 x 270mm (Black)
911 211 274 00: 50 x 720mm (Tan)
911 211 274 00 B: 50 x 720mm (Dark Brown)
028 129 087A B: 50 x 1080mm (Dark Brown)

930 211 196 00: 60 x 130mm (Tan)
930 211 622 01: 60 x 330mm (Tan)
930 211 622 01 B: 60 x 330mm (Dark Brown)
901 211 194 01: 60 x 380mm (Tan)
901 211 194 01 B: 60 x 380mm (Dark Brown)
901 211 195 01: 60 x 458mm (Tan)
901 211 195 01 B: 60 x 458mm (Dark Brown)
911 211 522 00 B: 60 x 1110mm (Dark Brown)
911 211 522 00: 60 x 1110mm (Tan)
644 572 971 00: 60 x 1500mm (Tan)

[proporsche]

Originally Posted by hermanator

88 carrera 3.2

getting ready to put engine back in and changing heater hoses with new and they are to small. All hoses list by our host are 60mm and the mount tubes are 62mm.
Am i missing something or do you try and stretch the tubes? Have the URO paper
and foil tubes.

just a Q.where on 1988 you are using paper heater hoses?

Ivan

[EC900]

Just a thought -
A muffler shop or a $13 Harbor Fright exhaust pipe expander can expand the foil tube a bit.

But since it’s only a matter of 2-3mm (1/8”) maybe using the top of a FULL water bottle (or something similar) can slowly wiggle that thin aluminum foil into size just enough to get it started on the coupler, a little silicone on the coupler helps too. It’s worth a shot and the general idea is to get than extra width.

A firm plastic bottle or better yet, a glass might be best as water bottles tend to be flimsy.
You might be able to flatten the coil ridges to gain a mm, the area where the band clamp will cover anyway.

[EC900]

@Hermanator :
After flattening out the coiled ridges with pliers, you should be able to gain the extra width, unfortunately I can’t measure this heater tube accurately but using the glass bottle (which just so happens to be 62mm) method, it does go over and down further by almost a 1/2” when I pushed it over the bottle.
(I can’t get to my engine to make any measurement and fitment.)

Here’s what I just did, looks flat and that part will be covered by the clamp.

[ADDvanced]

Additionally, I cut slits on mine around the end, to help it slip over one joint I was having trouble with. It expanded over all but one side of my heaterboxes which are aftermarket, idk.

[hermanator]

EC900: Thanks a bunch!!!! worked perfectly. Thanks again..

[Old H2S]

I put a coat of epoxy on the last inch of each end to reinforce it, helps when you take them on and off from getting deformed.

[UROParts]

^ West Marine G/Flex is a 24-hr epoxy that remains quite flexible even after it sets. Fast-set epoxies are usually brittle.

[Old H2S]

I use the GFlex...

[pmax]

Good stuff Old H2S/Uro, would've saved me lots of time and aggravation fitting those nifty spring loaded hoses the last time I changed them.

[john walker's workshop]

I cut a short slit and position the slit out of view before hose clamping it.

[al lkosmal]

Originally Posted by john walker's workshop

i cut a short slit and position the slit out of view before hose clamping it.

+1

[wjdunham]

Could have used this thread 6 months back :-( I wound up using the Aircraft Spruce orange hose tubes which were a bit price but worked very well. i have two aluminum/paper hoses sitting on the shelf now...

[theiceman]

i actually love the muted brown paper hose , and has that touch of originality . I had the shiney black in there but dumped it quickly as it looked tacky.

It should be pointed out i have a copper brown metallic car so the shiny black looked off

[UROParts]

Some photos of our hoses on a 914: http://www.914world.com/bbs2/index.php?s=&showtopic=338665&view=findpost&p=2726455

[ADDvanced]

Originally Posted by theiceman

I had the shiey black in there but dumped it quickly as it looked tacky.

I had the brown but it reminded me of grocery bags, so there

[theiceman]

Originally Posted by ADDvanced

I had the brown but it reminded me of grocery bags, so there

it worked out great as i had a buddy who had the brown and hated it too,,,, so we did the trade