The Engine Shop - 2006/02

Luckily Eric Clutton (“Doctor Diesel” and PAW’s US
representative) was at the field too. He and I examined my PAW .06
thoroughly. We changed needles, looked for compression leaks, and
checked for sticky bearings. Everything seemed normal. Then Eric
removed the air intake tube (this is a nonthrottled engine) and solved
the mystery.

The Engine Shop - 2009/08

O.S.’S LATEST “Alpha”-series four-stroke
engine—the 72FS-a, available from Great
Planes—has all the advanced features of the
earlier 56FS-a. Those include a compact
die-cast muffler, shortened pushrod tubes,
an advanced carburetor assembly, and the
absence of a crankcase breather tube.

Pages