breather tube

[dcsavitzky]

Hello All,

I have broken the flexible metal tube that connects the valve cover to the flame arrester. Any ideas where I can get a new one? I don't know what to call it, so I don't know how to find it on the internet or ask for it when I call an auto parts place. Is there some rubber alternative (like the "slash tube" on the newer model A4? Is there a problem with plugging the hole and running the engine for now?

Thanks.

David

[Easy Rider]

Our host has them listed under breather tube - $20.00


(OVAL_11_203) Breather hose (late model) - valve cover to carburetor

[ndutton]

I have no experience with it but I wonder if a late model intake air horn and flame arrestor can be fitted to an early model carb (like you have) which could then accommodate the late model slash tube. Perhaps a call to Ken at MMI is in order. He'll know.

Of course, there's always that three letter abomination that manages blowby well but introduces subtle tuning adventures. Man, I can't believe I'm saying it but its initials are P-C-V. In all fairness, it's one of your options.

You will want to impart a negative pressure on the crankcase in any case. Closing off the breather negates this.

[dcsavitzky]

Thanks.

The late model breather tube ("slash tube"?) would also require changing over the valve cover and the flame arrester. The model I have keeps the arrester vertical.

I think the PCV valve would work but I saw the forum threads that described additional problems with tuning the carburetor. I'm still hoping for a lead to get a simple replacement.

A call to Ken is the plan for this morning.

David

[sastanley]

David, the early model breather tubes look like gas supply lines to me..i.e., to a gas hot water heater, or portable propane applicance, hard line from the ground to a grill, etc..

They sell those in various diameters too.

Don't forget to come back and fill us in about your discussion with Ken and the solution, once you find one!

[romantic comedy]

I am not familiar with that part, but could you not use a hose for that application?

[67c&ccorv]

The metal hose is 3/4" in diameter.

I still have mine attached to the breather but was looking at a supplier in the UK on Ebay recently thinking they may have some in this diameter?

http://www.ebay.com/itm/Flexible-Stainless-Steel-Exhaust-Hose-20mmID-3-4-x-1-metre-/181137069417?pt=LH_DefaultDomain_3&hash=item2a2c9c5569

I have purchased 40mm hose from them previously and found their service and price from GB to be very reasonable.