Bucket List and Prop Removal

[dalijohn]

Just cleared one more item from my bucket list, spent the last two weeks in OKC and passed the writtens and O&P's for the A&P certificate. Wow, was that ever intense.

Has anyone seen or made a U-Tube video on the removal of a prop from a tapered shaft Continental A-65 engine?

[Hank Jarrett]

Re: Bucket List and Prop Removal

When they are stuck, you don't document things like that!

On a non-joking response, if you are about to do something you wouldn't want on film to take a prop off you are doing something wrong!

Hank

[Robert Lees]

Re: Bucket List and Prop Removal

Removal of the prop from the prop hub is easier with the tapered crank than with the flanged crank....just undo the prop nuts. I always use nyloc nuts on the prop bolts on a tapered crank (awaiting comment ).

However, removal of a prop from the flanged crank requires cutting the wirelocking of the heads of the bolts (and re-wire-locking upon prop installation).

Do you mean removal of the hub from the crank? This requires a few tools and a large torque wrench to put it all back together.





(please excuse the corrosion on the tool...I don't use it that often).

There are a few other tools for hub removal, of which I don't have photos yet. It's a good idea to remove the hub periodically to check for corrosion / cracks, especially in the keyway slot.

Hope this helps.

Rob

[Buell Powell]

Re: Bucket List and Prop Removal

David and Robert,
I have an article with illustrations on how to make the tools you need and remove and re-install the prop and hub if that will help.

[Robert Lees]

Re: Bucket List and Prop Removal

Buell,

If you are willing to give the article freely, then I can add it to the Taylorcraft Foundation Technical Resources.

If so, PM me for my email address.

Thanks.

Rob

[Guest]

Re: Bucket List and Prop Removal

Removal of the prop from the prop hub is easier with the tapered crank than with the flanged crank....just undo the prop nuts. I always use nyloc nuts on the prop bolts on a tapered crank (awaiting comment ).

However, removal of a prop from the flanged crank requires cutting the wirelocking of the heads of the bolts (and re-wire-locking upon prop installation).

Do you mean removal of the hub from the crank? This requires a few tools and a large torque wrench to put it all back together.





(please excuse the corrosion on the tool...I don't use it that often).

There are a few other tools for hub removal, of which I don't have photos yet. It's a good idea to remove the hub periodically to check for corrosion / cracks, especially in the keyway slot.

Hope this helps.

Rob

Hi Rob,

I would never apply that much torque to that hub nut.

I have seen hubs cracked right down that keyway and its a waste of a good hub and I attribute it solely to over torqing.

My suggestion is to follow the attached service letter from Aeronca. Fundamentally I do that except that I thoroughly coat the taper and the inside of the hub with antisieze compound (moly) as opposed to light oil.

Been doing it that way since 1987 and swapping between two props each on their own hub and no problems taking off ot installing.

One time I did get one stuck but applying heat to the hub after removing the prop popped it off that may have been in 1998 when i experimented momentarily with bees wax.

Dave

p.s. even if the Cont. manual gives that torque I would not use it.

oops! the pdf file will not upload, its only 1M

this works=> http://www.aeronca.com/docs/HelpsAnd...1-Feb-1961.pdf

we had this debate before

http://vb.taylorcraft.org/showthread.php?8210-Tapered-Flange-Adapter-Torque&highlight=taper

http://vb.taylorcraft.org/showthread.php?8320-propeller-hubs-and-tapered-crankshafts&highlight=taper

[dalijohn]

Re: Bucket List and Prop Removal

Do you mean removal of the hub from the crank? This requires a few tools and a large torque wrench to put it all back together.

Robert, yes, I meant removal of the hub from the crank. I miss-typed my question.

[3Dreaming]

Re: Bucket List and Prop Removal

Drude, when I click on the aeronca link it shows as not available.

[Guest]

Re: Bucket List and Prop Removal

thanks,

try now I think that I fixed it

Dave

[Pearson]

Re: Bucket List and Prop Removal

Here you go. While searching for this on my computer I also found a document from the FAA that shows the approved props for popular engines like the C85, C90, & O200, if anyone needs it.