F-19 vs. Hurricane Sandy

[lawheelock]

Re: F-19 vs. Hurricane Sandy

Steve,
The bellcrank for an F19 is the same as a BC12D. I bought a wrecked F19 and have dismantled one wing. I also have a BC12D that I am replacing the rear spar in the left wing..
The bellcranks I have from the F19 are identical to the ones in my BC12D.
Problem is, my parts are in Indiana and I am in deep south TX. I won't be back to Indiana for a couple of months.
But, at least you know for sure that BC12D parts fit.
Larry Wheelock, A&P, IA, 1946 BC12D N96179 and a few F19 parts. Taylorcraft Foundation #671

[ddrewry]

Re: F-19 vs. Hurricane Sandy

The part in the picture appears to be made from cast material. My understanding of the owner produced part reg is that the new one would have to be made from the same material. Is that correct? It seems like it would be better if made from something other than cast. This brings to mind another recent post about why there are so many Aeroncas on the market. My personal opinion is that THIS is a perfect example of why Taylorcraft are not more popular than they are. But getting back to the topic of the thread, I am very curious about the remedy for this situation. If you end up making your own part, could you please share the process, drawings, and anything else that would help in the future. If we could catalog the steps each time someone overcomes a problem like this, eventually we would have a library full of solutions similar to that on the Aeronca or Luscombe websites.

I believe the new part has to "meet or exceed" so you can certainly machine a part that was previously cast. You would have to do dilligent research on a change in materials.
D2

[steve_samo]

Re: F-19 vs. Hurricane Sandy

Raining again here in CT. (The forecast on Friday was for rain "maybe" moving in Sunday PM. It has rained steadily since this morning and still raining at almost 10:00 pm !)

Anyway, I managed to get some WD-40 on the bolt Saturday morning, let it soak a day, then tried Hanks's tapping routine this afternoon. No luck. The bolt turns, but will not free itself from the bell crank. Lots of fun working over and under the wing through the inspection holes in a driving rain. What we do for our beloved airplanes.

Thanks again to 3Dreaming, Larry, D2 and Hank for the posts. I'd have given up already were it not for you guys. I have also recently heard from Forrest who is trying to find me a crank. He has an airport to get ready so I have to remain patient. That won't be easy this week since my commuter rail decided to play smash up derby on Friday. Life ain't been great lately, but you guys on the forum make it a bit easier.

- Steve

[Mark Julicher]

Re: F-19 vs. Hurricane Sandy

WD-40 is not the best rust breaker.
Try PB Blaster, if that fails use Mouse Milk

[steve_samo]

Re: F-19 vs. Hurricane Sandy

Thanks Mark. I have tried PB Blaster over the last few days, but still have no luck. I see the bronze bushing , and the bolt turns freely from the top of the crank, but will not come free, despite anything I try. I can hold the bronze bushing with vicegrips, but the bold still turns, because, as 3Dreaming and others knew, the bolt is turning within the steel bushing.

I think the real problem lies in the difficulty in deploying the pentrating oil inside the bolt and steel bushing. There is very little gap at the top of the crank where the bolt joins the crank. I spray, tap, and pray.

God Bless Our Troops, both with us today and fallen. Thanks to you all for your continued assistance.

- Steve

[Mark Julicher]

Re: F-19 vs. Hurricane Sandy

WOW. nasty dilema Steve.
I would try putting it in the oven and warming it to 400 degrees. Do that a couple heating-cooling cycles just to see if the metal might creep just a little and break loose.
Mark

[Hank Jarrett]

Re: F-19 vs. Hurricane Sandy

Cold and hot are a great solution, but I thought he couldn't get the hinge off the wing (isn't it covered and on the plane?). That said, Mark may have hit on solution. How about a good size soldering gun and some ice in a plastic bag (or dry ice)? I would NOT use an open flame anywhere close to a covered wing or a wood spar, but holding one of those BIG soldering guns the plumbers use where they can't use a torch on one part then pressing some dry ice on the other before it cools could shock the metal into letting go.
Remember some of those parts are Magnesium! You REALLY don't want to reach ignition temperature or let a flame close to any shavings that come off when things start moving! You also don't want the heat to ruin any parts you plan to use over.

I haven't ever tried this on Magnesium, so no guarantees, but I HAVE done it on steel seized to aluminum with a torch.

Hank

[Marv]

Re: F-19 vs. Hurricane Sandy

Try a 50/50 mixture of acetone and transmission fluid. It has worked for me when other penetraating oils did not. I used the old A type trans fluid i bought at the dollar store. Marv

[Pearson]

Re: F-19 vs. Hurricane Sandy

Sam,

Can you get to the other end of the bolt? IF you can, have someone push up with a blunt rod, like a punch, while you turn the bolt from above. If they can get the rod stable on the end of the bolt, have them tap it with a light hammer while you are turning.

[3Dreaming]

Re: F-19 vs. Hurricane Sandy

It's time for a big hammer, but don't hit it with it. The problem is the fitting is not solid enough because of the way it is bolted to the spar. Find someone to help you, then take a 1/2" deep well socket and place over the head of the bolt. Back it up with the big hammer. I have a 10 pound sledge here in the shop that I would use. now with it backed up with the big hammer start to tap on it again. After it starts to come out you may need to get something a little longer than the socket for the bolt to slide into. To take apart my broken fitting I used the vice as a back up to punch the bolt out, and it was stuck pretty good. Tom

[Hank Jarrett]

Re: F-19 vs. Hurricane Sandy

The big thing issue with driving the bolt out is to NOT have the spar attachment react the force of the hits! A deep socket is a great idea if you can react the force from the other side. If the fitting could come out a press would be perfect, but if it isn't moving you will probably break the fitting. Still, better the fitting than the rear spar!
Hank

I think the LAST resort is going to be to cut the fabric and remove the fitting, but I don't think we are there yet.

[steve_samo]

Re: F-19 vs. Hurricane Sandy

Hello All,

I literally used everyone's suggestions to help extract this damn thing. Amen. Story to follow soon.

In the meantime I am still looking for this part. From the looks of it, I wll need it with the bushing attached. I get the feeling it is there to stay. Forrest is looking, but as everyone knows, he's busy these days readying an airport.

Thanks again to Hank, Mr. Pearson, 3Dreaming, Mr. Lees, DDrewry, Larry, Marv and everyone else.

- Steve

[mike lutz]

Re: F-19 vs. Hurricane Sandy

Steve.Have you found a bellcrank yet ?If not I think I know where one is availiable.You can e-mail me at :[email protected].
(cell)419-348-2206