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P'raps of some small interest

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DrEntropy

DrEntropy

Great Pumpkin
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A friend here is a Weber carb rebuilder, he made up some fittings recently which are hard to source anyplace. A banjo fitting "Tee'd" off a curved pipe for the gas supply to two 40 DCOE's. He asked if we could pressure test 'em for leaks. I cobbled together a fixture using a C-clamp and rubber membrane to block off the banjo, a rubber end cap and band clamp for one end of the long pipe and a hose with an air chuck for pressurizing the "rig". Here's the bit which may be of interest: not using gasoline. Milk was inserted in the fitting as surrogate fuel and pressure was introduced at 28~30 PSI. Milk will flow the same as gasoline. Water will NOT.

My granfar taught me this back when I was a lad.
 
Which milk? whole, low fat, skim, fat free?? The fat solids have to make a difference!

We used odorless mineral spirits or Stoddard solvent to test piston engine aircraft fuel systems for leaks. It has a specific gravity and viscosity very close to that of Avgas.
 
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must be whole milk. We all know that all the others are just water lying about being milk ;)
 
DrEntropy said:
Milk will flow the same as gasoline. Water will NOT.

My granfar taught me this back when I was a lad.
Click to expand...

That's probably before pasteurisation too.
 
I can't see how that would be 100% accurate. it would seem gas will seep through a smaller crack than milk will. Flow, maybe, leak; I just can't how especially with solids suspended in it. Now if'un they were puttin' gas in yer baby bottle...that's a whole nuther matter. :joyous: (But sure would explain a lot)
 
By the whey, gotta friend going to the salt flats in Sept with webers on a VW 35 which he made a manifold to fit. Hope is to top 100mph. Webers probably worth more than the car.
 
My pal has gone out there with some Alfa guys, they're FAST!
 
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