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He knows where the log books are. Maybe he needs Guido to help his memory.

The egg shaped steel bushing above fix was intended to only address wear in the cast aluminum hole (#27 above) by adding a steel sleeve without removing any more cast aluminum than necessary, and to provide a steel wear surface for the shimmy damper body. Our 172M at 2000 hrs TT didn't seem to...

For certain, do not ream or drill the hole any larger for the #27 part above! Measure and record the minor and major diameters of the oblong hole with a plug gage. Make (from a free machining steel such as 120 ksi Stressproof) a simple ID/OD bushing with the desired ID (.1875 or a little under...

Measure more closely. It is probably egg shaped. Make the bushing out of good steel.

If it is for a Cessna shimmy damper, find someone with a metal lathe and turn down the bushing OD as needed. BTDT

Jim - Still trying to get my arms around the mechanical lash up of the camshaft front end, the intermediate double gear on a static shaft retained by a set screw, the second bevel gear that drives the governor and lastly the governor itself. The governor input shaft is axially opposed by the cap...

Re: Camshaft front end picture and possible lobe taper? If you get one, I want to see if the end face looks vaguely like an end mill or file. There shouldn't be any serious thrust generated in the camshaft, but maybe the lobes are all tapered in the some direction to make the followers rotate...

Jim - do you have a picture of the end of the camshaft?

My Bad! - I did not fully understand the governor location...but on review, the camshaft is actually driven by the back of the engine so torsional vibration at the rear could just be compounded by the camshaft windup to make a still worse torsional vibration environment at the governor. Much...

The ride of any rotational hardware connected to or driven by the rear end of a crankshaft that has a flywheel/propeller at the other end, is a complicated analysis situation of a hellish environment. There is a lot of torsional vibration at the rear of a crankshaft of any multi-cylinder piston...

As a retired MechEngr with a lot of fatigue experience, the combination of Loctite with a short thread and a set screw application is a very desperate design. Don't know the application tho.

Spectacular pix! What Focal Length lens do you use for the head-on shots?

An adult down sleeping bag makes a good infant's nest.

My hangarmate's Cessna 140 at KSSQ only purchased fuel from area FBOs. He had a substantial engine stumble on take off at Duluth' Sky Harbor airport :)oops:) which was found later to be elastomer fuel line related. I tested a sample of his fuel using the water-added method and found it...

Ice? I know Lycomings aren't supposed to ice at those temps according to popular wisdom, but our 172M would routinely generate limited carb ice at any temperature. Or is there a baffle/seal problem in the carb heat box/air select? Does the throttle shaft go all the way to the wide open stop on...

A torch, a hand grinder, a good large precise vise, a band saw with a metal cutting blade, a metal lathe, and sharp sandblasted Phillips drivers. Beyond those you only need cheap tools.

Notice the orientation of baffles 52 and 33. They are not symmetrical.

Pvt ASELand & Sea, Owned 1/4 of N1188H, a 145 hp Aeronca 15AC Sedan on Edo 2000s. Accumulated ~ 80 hrs over 4 years. Now 86 & fully retired from Aviation.

Our 172M when new had only a pipe plug drain on the fuel selector too. Wonder how they got by with it for so many years? Replaced with a quick drain.

Bet that ground receiver for the runway light control has surplus sensitivity.