Stuff:
My Robart air compressor's batteries are shot so I took it apart for possible battery replacement. The plastic ends are force fitted into the center metal tube.
Had to un-solder some wires from circuit board to plastic end to remove internal assembly. Looks like Battery plus should be able to install new ones.
I bought a larger version (more power) on ebay as my primary air compressor. The new one is a little longer as well as a little larger in diameter.
Last Fall my Ziroli SBD dauntless GT-80 lost about 300 RPM's and then would not start.
Put the magneto sensor from a G-62 and the engine started so I put the old one back on and it started but ran badly (maybe a bad connection on the connector).
Rebuilt the carb and all's 'good'. Back to around 6,400 RPM's.
Planes around 10 seasons old.
Right Robart plastic rim tire on my Ziroli shrunk down to 86" F6F got a 'flat'. Had to put some foam in the tire and caulk between the rim and tire.
Six screws hold the two rim halves together.
