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**Turtle** · 01-10-2009, 10:03 PM

Irrigation tubing is the right size and the threaded fittings are the right size.
glue them into a 2 inch length of the irrigation tubing to make the manifold extensionsand put a small o ring over the thread that will go into the manifold. works a treat.

**tkent02** · 01-10-2009, 10:06 PM

I threaded an aluminum tube cut into four shorter tubes, very easy, it still works fine although you have to be careful not to break the threaded part off, the aluminum is weak.

**Larry D** · 01-10-2009, 10:11 PM

Here's a carb sync thread that has alot of links and a multitude of info.....

Homemade Carb Sync - The GSResources Forums

http://www.thegsresources.com/_forum/showthread.php?t=101118&highlight=homemade

This forum contains old posts which may have information which may be useful. It is a closed forum in that you can not post here any longer. Please post your questions in the other technical forums.

**chef1366** · 01-10-2009, 10:29 PM

Originally posted by tkent02 View Post

I threaded an aluminum tube cut into four shorter tubes, very easy, it still works fine although you have to be careful not to break the threaded part off, the aluminum is weak.

I broke one of my brass sync tubes. Please post a pic of your creation and where you got the tubing.

**tkent02** · 01-10-2009, 11:02 PM

Originally posted by chef1366 View Post

I broke one of my brass sync tubes. Please post a pic of your creation and where you got the tubing.

For a while I had the synch tool but the tubes were in my other toolbox in Phoenix, had to make a set:

These are aluminum, but brass tubes or mild steel would be better, Ace or any hobby shop sells the tubes. Couple bucks each for a piece a foot or two long.
Can't remember the thread pitch, just match one of yours. 4mm I think?
The tubes come in inch sizes, but the diameter doesn't really matter as long as it works in the tap.

Just use a standard nut and o ring to seal it up.

**robertbarr** · 01-11-2009, 10:49 AM

Originally posted by scrapper View Post

I was wondering where I can get the barbs for syncing the carb.

A typical auto parts store will carry the 3/16" barbs, usually in nylon / plastic. If you want fancier, McMaster-Carr carries them in brass (or maybe copper, not sure) for about a buck-something a copy. I'm sure there are other sources.

Originally posted by scrapper View Post

Does anyone know what is the best type tubing for a homemade vaccum setup. I was looking a walmart at fish tank tube, looks like it would be sucked shut.

My original MotionPro mercury stix came with what looked like aquarium tubing, and a few times I had a tubing end actually start to melt off of the adapter! Cheap stuff. Makes for a curious sync effort when one cylinder suddenly drops out of the picture.

I use vacuum line from an auto parts store (3/16" works for me) coming straight from the adapters, about 4" worth. Then I use barbs to connect the sync tool from there. After 4", of course, heat won't be a factor.