rover67
Rising Sun Member
Yes, reducing the amount of brass is key to lowering cost in one of these exercises.
I'm a little worried about the sharp edges rubbing on the copper pipe, but we'll just see how it holds up and I can always make adjustments later.
Welting is a good idea Jeff - I might have to swing by your house and pick a little up
2:45
That's how long it takes, at 900 rpm, to take a 31x10.50R15 from 12 psi to 36 psi. Not a barn burner, but respectable.
I have a leak at my pressure gauge, but other than that, all systems appear to be nominal. I'll post some pictures, and maybe a video, later.
Glad you got it going! That's about a normal time to fill a tire from most sources. Think about how tiny the actual hole in the valve stem is! On my 40 I have dual stems. The second stems are Monster valves. They will air the 40's down from 25 (street pressure) to 4# in about 20 seconds. They will air back up the tire in about 45 seconds! CO2 seems to air up quicker too than OBA. I think it's probably because of the dry gas.
....looking for a web pic I found this article....pretty much sums it up...
http://www.off-roadweb.com/tech/0909or_power_tanks_monster_valves/index.html
I just have to add this: I don't know why it takes me so long to do stuff like this - I looked over Marco's thread and he installed his in an afternoon. Mine took me two weeks +/-
Oh well. It's just the way I am I guess.