The International Cessna 170 Association

If anyone has trouble sleeping at night, here is some good information from American Welding Society on Aluminum Spot Welding for the Auto Industry:
http://www.aws.org/wj/2005/01/034/

Miles: On my project the rudder skins are original and the tail lamp housing has rivets at the front and rear with spot welds in between maybe 5 of them top and bottom. Check your trailing edges on the ailerons, flaps, elevators and rudder to see they are spot welded. Also there is a L shaped stiffn...

Miles:
The spot welds that I have found on the 48 are really non structural in that if they failed, the airplane would not fall out of the sky.
Following is from Aircraft Spruce on 2024T3: Arc or gas welding is generally not recommended, although this alloy may be spot, seam or flash welded.
Dan

Thank you, I will contact him.
Dan

Thanks for the responses and leads.
Dan

The Lockheed Electra 12 Jr is owned by Joe Shepard here in Georgia. Nice airplane and good guy so I will see the movie for the flying. I am sure that the movie Amelia is kind of like the movie Titanic where you know what the ending is before it starts.

I have completed reskinning the verticle and I am now reskinning the rudder on my 48 project. I would like to stay original.The skins are spot welded in several locations including the position light housing to the bottom skins. Since it was originally spot welded, I should be able to use the same a...

Steve:
I was just curious how this could happen so we all can learn what not to do. I am glad you are flying safely and happy.
Thx,
Dan

Can you explain how 1/3 of the gasket on the intake elbow "came out". Did the mechanic miss the stud when they installed it, use an old gasket, or what? I am glad that you got it fixed!

George:
That is quite a website and it would be absolutely perfect if they also sold 170 parts. Nothing better than peanuts, popcorn, and 170's.
Thx,
Dan

Even a blind squirrel can find a nut once in while

EGT and CHT shows cylinder 2 absolutely cold. Plugs pulled and checked out OK and producing spark. Wet gas noted on plugs. Wires and timing check out OK. Plugs all replaced and engine run up, the engine is still rough. EGT and CHT show cylinders 4 and 6 runnning cooler than all odd number cylinders...

Sometimes intake leaks will cause popping such as the primer not connected to intake manifold???

Bruce: When I change oil, I put 6 quarts in and it reads around 5.5 on the stick. It seems that when I put more in, it just goes away. As far as multigrade oil, I am not a supporter due to issues with Champ I once owned, The previous owner used multi grade so I stayed with it. However, in the summer...

I would doubt that if it is raw oil that it is coming from the exhaust. Bruce mentioned that when his oil level gets to around 5 quarts, it seems to stop blowing (Bruce I am paraphasing so please correct if I am wrong). I personally run my 170 between 5 to 5.5 indicated on the stick as it seems to g...