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Old 10-31-2016, 04:34 PM
M McGraw's Avatar
M McGraw M McGraw is offline
 
Join Date: Dec 2012
Location: Greenback, TN
Posts: 534
Default Thanks Bill

Quote:
Originally Posted by BillL View Post
Mostly available in any material, I used the least expensive. One thing - the top of the Raven tank connects to the top of the accessory case. If you are not planning on going full inverted, and attach to the typical breather port, then pay attention. The Raven top outlet is 1/2 NPT, the accessory case is 3/8 NPT. 3/8"NPT to hose is for 5/8" id hose. The 1/2"NPT is for 3/4" id hose. I could NOT find any fittings with a common hose ID, and used a bushing in the top of the tank to allow a 90 deg 3/8"NPT X 5/8" hose fitting.

If you want to go back to the accessory pad using the Raven or Christen adapter, then it is 1/2" NPT and you can use the 3/4" id hose. More $ unless you already have the pad adapter.

I sourced some fittings from Hoerr Racing. They have lower prices than Summit.
https://www.hrpworld.com/store/

I think I have some unused 90 deg fittings if you are interested, email me.

edit - total truth is i did find one straight brass fitting for $45 that is used for coolant on street rods. It is only in straight. It was 3/8"NPT X 3/4" hose id - I needed a 45 deg as 90 would not fit and straight was not suitable for hose routing on my 7. The fittings are made for the heater hose from the intake manifold.
Bill,
Thanks for taking the time to respond. I had already purchased aluminum fittings before I noticed several people using brass, thus my question. I checked the breather tube on my IO-390, it is setup for a 3/4ID hose. Lycoming must use different fittings on different models. Thanks again.
Marvin
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