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Old 27th October 2019
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I got my slack tube made.
It responds pretty much like yours does bustert.
I need to get pics of the testing but here is the contraption.

Cut the nipple of a 3/8" brass pipe fitting to make a bushing for an1/8" nipple fitting.
Drill out a stainless washer for it.




Made the backing plate from a 2x4 with an aluminum 36" ruler attached.


Used drywall screws to bind the hose between the ruler and the shank using the screw head to hold the hose down.
I accidently laid the hose over the exhaust yesterday and melted it.
So I had to cut it shorter so I cut down a spark plug boot as a sleeve for the hose connections.
All good and tight.


Routed the hose away from hot objects.


And here is the rig.


edit:
I found that the wooden ruler I had had stretched out app 1/8" in it's 3 feet length so I used the aluminum one.


edit:
Aaron used a 3/8“ flare to 1/4” FPT fitting with a 1/4“ MPT to 3/8” hose barb.


I didn't have one of those so I used what I had.
The 3/8"x18 pipe fitting's threads apparently work out to fit in the 5/8"x18 threaded hole.
But I didn't want the tapered fitting so I ran it into a 5/8x18" die for a straight cut which is why I used the washer.
I drilled out a 5/16" SS washer so the OD wouldn't hit on the case.
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Last edited by Hippysmack; 28th October 2019 at 02:16..
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