Hydroboost with remote adapter in place of the blue original. Charged with helium argon mix to test for leaks. It really should have nitrogen instead but I don't have any. Accumulator is made of titanium.
Gauge adapter and charging valve. Charge valve is a schrader like a tire fill valve but has no guts. One of the nuts moves the stem and seals it. Accumulator tag came with it and shows it came off Northwest Airlines tail number N1161US 5/06 when it was scrapped. I googled that aircraft and it set a speed record Feb. 96 from Washington DC to Amsterdam. you never know what google is going to come up with!http://records.fai.org/general_aviation/aircraft.asp?id=200
Sub-class : C-1 (Landplanes)
Speed over a Commercial Air Route : 993.13 km/h
Date of flight: 17/02/1996
Pilot: David J. ROTH (USA)
Course/place: Washington, DC (USA) - Amsterdam (The Netherlands)
Aircraft:
McDonnell Douglas DC-10-40
Registered 'N1161US'
I'm holding the gauge adapter made from 3/4 round CRS. The external threads are kind of a reverse O-Ring boss style fitting. Threads are 7/16 X 20 and the angle of the O-Ring seat is 11 degrees. The other end is tapped 1/4 NPT for the gauge. Getting pipe thread to seal at these pressures was kind of a tussle. Ended up using 320 grit lapping compound and a pipe nipple to lap them in. The original gauge was no good.
WHERE? Where did you find the adaptor?
ReplyDeleteI have been looking everywhere for that. I don't need the accumulator, just the adaptor on the hydroboost unit.
Wally,
ReplyDeleteThank God I found your blog. I have been trying to do a remote accumulator on my GM truck. I am hoping you can tell me where you got the remote adapter? I already have the accumulator. Did you machine the adapter yourself? Can you give more details? Is it just a hollow adaptor with the hose adapter on it?
I made the adapter because I could find no new ones anywhere. It seems only approved rebuilders can get new.
ReplyDelete