brass cylinder impulse barb

[thompsoncustom]

hey I was wondering what you guys used for a brass impulse barb on a cylinder without one.

I could just order a stihl on and drill a hole and press it in but I was looking for something I could pick up local somewhere as are local stihl dealers don't carry anything.

 

[cookies]

A small section of brake line or brass/stainless tubing sold at hardware stores would work

 

[thompsoncustom]

A small section of brake line or brass/stainless tubing sold at hardware stores would work

hmm never even consider brake line, I wonder if the size is close enough to work with the impulse hose. good thing is I have some on hand and can check when I get back home in a couple days.

 

[Jacob J.]

I take old barbs out of busted up crankcases. I did a custom carb project on a 288 years by setting up
an external pulse system through the intake block. I used a brass impulse barb out of an old 044 case.

 

[thompsoncustom]

I take old barbs out of busted up crankcases. I did a custom carb project on a 288 years by setting up
an external pulse system through the intake block. I used a brass impulse barb out of an old 044 case.

ya I tossed a 029 cylinder that I could have pulled the barb out of but never assumed I would need it, to new at this I guess I'm learning tho and keeping more stuff.

 

[hotshot]

hey I was wondering what you guys used for a brass impulse barb on a cylinder without one.

I could just order a stihl on and drill a hole and press it in but I was looking for something I could pick up local somewhere as are local stihl dealers don't carry anything.

I’d first ask what diameter the smooth side is on these below, of course measure your hole first.

Carb fuel elbows are all 0.155" diameter press ins. Use sealant or Loctite when you put it in.
https://www.farmertec.com/Search-0000+988+5211.html

 

[a. palmer jr.]

I bought a small package of those barbs off ebay a few years ago. Don't know if they still sell them or not..

 

[Bob Hedgecutter]

What would be wrong with a small brass air barb from a hardware store?

 

[thompsoncustom]

What would be wrong with a small brass air barb from a hardware store?

I assume nothing if you can get them that small. I know my local hardware stores didn't have anything close to small enough.

 

[Bob Hedgecutter]

I assume nothing if you can get them that small. I know my local hardware stores didn't have anything close to small enough.

Ours do- but the interweb searchy thing should be able to find suitable candidates for small barb fittings.
Old industrial sewing machines have similar small diameter fittings within their internals for oil galleries.

 

[Ronie]

I pull them out of junk carbs.

 

[huskihl]

I have 4MM brass tubing and make my own. You can drill a hole that’s slightly small and use heat or more often than not, I end up tapping it in and securing it with JB Weld. As long as the surfaces are clean it works perfect

 

[thompsoncustom]

I pull them out of junk carbs.

View attachment 1060023

that's what I should have done as I have some junk carbs on hand. but I ordered a over priced one online the other day.