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Oil Breather Tube Routing

Varieze Mike

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To All,


My oil breathe hose right now leaves the crankcase vent and goes up to the rear and loops back down the center line of the case torward the carbon spinner. This makes a mess of the spinner. I have hal Hunt four pipe exhaust. I was thinking about moveing this to the right out board exhaust pipe end . Should I use 5/8" 3003 aluminum or 5/8"304 stainless stell tubing? Any ideas, or proven methods in practice.

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  • 12 years later...

I have the same exhaust and had the same issues.


I plugged the original breather, built a plate that covers where the starter goes, tapped a breather fitting on it.


Then, oil separator on the firewall with an exhaust across the engine to the exit.




Can kind of see the plate on the left back of the engine:



Edited by borrisl
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