Jump to content

IGNORED

Don't buy this from Z Car Depot


SteveJ

Recommended Posts


6 hours ago, SteveJ said:

 creating a jig to heat and mold the hose into shape.

I did that a number of years ago. Back before I started taking pictures of stuff like that. My "jig" was a piece of coat hanger wire that was bent into the desired shape (over-bent actually to account for spring-back), and my "heat" was a toaster oven. Worked pretty well. I did some parts out of Viton and some others out of neoprene.

PSA -  :excl:   Don't burn the Viton or anything else with fluorine in it.   :excl:

Some more detail just to fill out the story... I ran a pair of those tubes on a some round tops for a while and then pulled the round tops off to go back to flat tops. They worked great while on the car. No binding or other issues.

However...

Just a few days ago (quite coincidently) I was inspecting those round tops and noticed that the rubber tubes were failing. Cracking around where they were expanded onto the nipples at the ends. I don't know why they were failing. It was Viton from McMaster, so it should have been quality material. Maybe I did some damage with the heat.

  • Like 1
Link to comment
Share on other sites

2 minutes ago, Captain Obvious said:

I did that a number of years ago. Back before I started taking pictures of stuff like that. My "jig" was a piece of coat hanger wire that was bent into the desired shape (over-bent actually to account for spring-back), and my "heat" was a toaster oven. Worked pretty well. I did some parts out of Viton and some others out of neoprene.

PSA -  :excl:   Don't burn the Viton or anything else with fluorine in it.   :excl:

Some more detail just to fill out the story... I ran a pair of those tubes on a some round tops for a while and then pulled the round tops off to go back to flat tops. They worked great while on the car. No binding or other issues.

However...

Just a few days ago (quite coincidently) I was inspecting those round tops and noticed that the rubber tubes were failing. Cracking around where they were expanded onto the nipples at the ends. I don't know why they were failing. It was Viton from McMaster, so it should have been quality material. Maybe I did some damage with the heat.

Hmm, I could get a cheap toaster oven from Wally-World.

Link to comment
Share on other sites

10 hours ago, SteveJ said:

Thanks. I'll make the inquiry.

As far as the other types of hose I'm buying, I am planning on doing some trials on a spare set of carburetors I have to see if the different types have the necessary flexibility as the nozzle moves with the choke.

@Mark Maras, Pam at ZTherapy confirmed. part number ZT20 is for the float bowl hoses. 

Link to comment
Share on other sites

So I went digging through my carburetor parts in my parts storage today. (Something I should have done months ago.) I found some black Helix Racing Products 3/16 ID x 5/16 OD fuel line. At 3/16 ID, it's a tight fit on the float bowls, but it should work.

https://www.helixracingproducts.com/316x-3-fuel-line-black

https://www.amazon.com/Helix-Racing-Fuel-Line-Black/dp/B000WK5J0Y

It did not kink at a bend radius of less than an inch. It's stiffer than the Nissan hoses, so I will put it on a spare set of carburetors to see if it binds the nozzles.

It is tolerant to 10% ethanol and is less than $10 for 3 feet.

  • Like 1
Link to comment
Share on other sites

Oh, I also found I had 2 sets of Nissan hoses...in addition to the set I just purchased...And I'm still trying to figure out why I took a camshaft someone offered me...at least I think it was given to me...I don't recall buying a camshaft...or that Helix fuel line (According to Amazon that was 3 years ago.)

  • Like 1
Link to comment
Share on other sites

Nothing like more options.

https://www.aircraftspruce.ca/catalog/pnpages/15-04818.php?gclid=CjwKCAiA17P9BRB2EiwAMvwNyGDVuhht0dypa-XwCNqz7pVIJ_WSV9hDGVqKnMOl-WcpRjx2K9uCiRoCFJUQAvD_BwE

Gotta trust an air craft supplier would sell hose that is fuel worthy. 

E0504C24-6488-4EA0-A6F9-8045C0211AEA.jpeg

Been studying fuel tubing. Seems Viton tubing is getting the nod. One description.

https://www.new-line.com/hose/tubing/viton-tubing/viton-rubber-tubing

Edited by zKars
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.