The International Cessna 170 Association

You could soak it in Alodine, use clear or amber. After soaking a few minutes rinse with water and blow out any excess water with compressed air.

The one real problem with these older engines is in valve flow and exhaust systems design. Increasing timing, compression etc. will add power, but at the expense of extra heat. By increasing the breathing capability of the engine you increase engine efficiency, power, and heat dissipation. I know th...

Port polishing and flow balancing is a total waste of time on an engine with a seven to one compression ratio and a RPM limit of 2700. This is a far cry from a "High Performance" engine. All I can say is numerous dyno test prove this statement wrong. I am not talking about making it a hig...

George, 145 bhp to 157 bhp is an 8% increase not a 1.08% increase. I will have to disagree on your opinion on port polishing and flow balancing. It has been going on for years with people who build high performance engines, and I can assure you it is not "voodoo". True, this procedure by i...

At what RPM was that 157 hp obtained? The problem with all these imaginary mods is they violate the type certificate of the engine (and an engine so modified violates the type certificate of the airplane.) It's just not a simple matter to swap internal parts and go flying. Even if it were legal it l...

Check out this site: http://www.lycon.com/ and click on NFS pistons. Lycon rebuilt my engine, but they can't put these in and keep it legal. These pistons are for the O-200, which are the same as the O-300 cylinders, but are used by Formula 1 racers. (Lycon builds a lot of custom engines). They will...

I took a look this week at the Cub site. The first thing I noticed was that they had many more forum titles than we do. Not that we should expand just for the sake of expanding, but perhaps we would be better served if the Hangar was divided into several MX related forums such as engine, airframe, ...

Randy Selchert, of Ajax Welding Inc., 319 Wolf Rd., San Antonio, TX 78216 800/531-7272 or 210/342-9494 tells me they not only weld these magnesium sumps, they are an FAA Certified Repair Station, and usually have at least one in stock for exchange. He said that the only way to properly repair these...

I acquired one of the "super venturis" from a friend who no longer had a need for it and was thinking of finally setting up my 170 with some gyros. My IA says I would need a field approval to install this venturi since it is not the original setup. The originals were AN5801s (sperry) which...

There are only two that I am aware of, one attaches to the front of the engine (sticks out the front of the cowling a bit actually) which is belt driven by a pully attached to the front of the crankshaft. Ugly!! The other, which I have never actually seen, is an alternator with a vacuum pump pad on ...

The time will also vary with the amount of corrosion found. The windshield channels and under the bottom retaining strip are places you can find some serious corrosion.

I experienced this same problem, the only "cure" I have found is to ride the brakes and carry extra taxi power to supply the rudder with a little more authority. Maybe we should come up with a tail wheel lock STC ala DC-3

George, this brings up a point I was wondering the other night regarding postings. Perhaps you could give us some guidance as to which post belong in the "Hanger" and which in the "Lounge", there seems to be some cross posting occuring which will make it more difficult to browse ...

The "eye bolt" I recieved from Bird-Dog was not a true eye bolt but rather an AN-7 bolt with an eye welded on - so your still using an approved (AN-7) bolt, right?

Russ, I went thru this four years ago on my engine. My $11,000 rebuild job turned into a $15,000 job. Most of the increase was my doing - it's hard not to get carried away. I had a B&C starter installed, had the new cylinders port polished and flow balanced, had the new style push rod tubes inst...