5 replies to this topic

[thebullet]

Hi all, I have a set of twin carbs I am going to fit to my Mini, but first I am stripping them.

The jets fuel lines are plastic on these, I am sure they should be a braided type of fuel line?

One is stuck into the floatbowl with some blue sealer stuff!

Can you just buy the metal lines rather than whole new jets?

[Ivor Badger]

The pipes were plastic from the factory covered by a metal spring. Much like braided hoses which are stainless braiding covering a rubber hose on the ones I've disected.

[bmcecosse]

They sometimes have a little blue plastic collar where they enter the float bowl..... Just by new jets from Burlen.

Edited by bmcecosse, 02 February 2012 - 08:04 PM.

[danm]

I'm about to try replacing these - £1 fuel hose, or £30 new jets. Worth a try, surely!?

[dklawson]

Wow!  Good use of the search utility ! 

 

I have repaired old jets twice.  However, I did not use rubber hose, I found a bit of nylon tubing the right diameter.  I don't remember the diameter but it was not common.  From memory, there was a brass ferrule/eyelet on the plastic at the bottom of the jet.  I carefully tapped that off the jet to release the old tubing.  I inserted the new tubing and re-fitted the brass ferrule to compress the parts and hold the new tube in place. 

 

At one time some generic (non-Burlen) jet kits came with rubber hose.  The jets had a barbed fitting molded on and the kit included a special barbed fitting to screw into the float bowl.  Without those special barbed fittings for the bowl and on the jet I think it will be very difficult to replace the jet tubing with rubber hose.

 

EDIT: 

Also see the web site linked below.  About 2/3 down the page you will see the guy is replacing the nylon jet tubing much as I described above.

http://thosbryant.wo...ebuilding-hs-6/

 

 

I found a picture online of the old aftermarket jet kit with the rubber tubing. Note how long the barbs are.

 

Edited by dklawson, 23 September 2014 - 03:23 PM.

[carbon]

I would advise caution here... Think about where those jets sit at the back of the engine, right above the exhaust manifold.

 

I'm not saying you could not repair them, but for £30 are you prepared to take the risk of a possible fire under the bonnet?