Each one of our experimental aircraft is unique, but they share many systems which need maintenance. It has to be done regularly to keep the aircraft airworthy, and it must be done correctly. Builders and owners share knowledge and tips for saving money in the process.

Engine disassembly

Engine Overhaul

As part of requirement to obtain my A&P certificate, I was to witness a few more engine overhauls, so I called Poplar Grove Airmotive...

Using an Engine Dehumidifier

On page 121 of the April 2007 issue of EAA’s Sport Aviation, there was an article titled “Power Plant Insurance,” by Dave Barker. It...
Spark plug tray, adjusting tool, gap gage, spark plug socket and extension, magneto timer, torque wrench, combination wrenches, ratchet, socket and extension

Tools to Maintain Your Sportsman or GlaStar

As we get more Sportsman builders who may not have extensive tool collections, the question has come up, what tools do I really need...

Magnetic Engine Protection

I went through some expensive engine difficulties after having rebuilt an IO-360 engine for my Sportsman. The lifters and camshaft lobes showed signs of...
Cooling baffles

Baffles Reduce Cylinder Temperatures

This is a technical tip for the cylinder baffling modifications we’ve come up with for the IO-360 and IO-375 engines. The windows in front...

Lightweight Custom Jack

Steve and I recently installed a set of Thomas Cox’s jack pads on our tricycle-gear GlaStar. These beautifully machined pads fit perfectly and will...
SilverHawk EX

Safety alert: Precision Airmotive Fuel Injection Servos

Attention All Owners of aircraft with Lycoming Fuel Injected Engines. Please read these safety alerts from Precision Airmotive. Hex plug 383493 coming loose from regulator cover. Service...

Engine Oil Analysis

When I purchased my GlaStar in February 2013 I had arranged over the phone for a pre-purchase inspection, then upon satisfactory findings, I flew...
GlaStar nose wheel bearings. Photo: Arlo Reeves.

Wheel Bearings

I was concerned about the salty sand we landed on in Baja corroding my wheels, so I rinsed them off and went flying, but...
Redesigned Sportsman float struts

Float Rigging Design & Maintenance, Part 1

I learned a lot about my Carbon Fiber Glasair Sportsman by building it in the factory two-weeks-to-taxi (TWTT) program, where it was initially put...