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[solved]Medallion 09 Propdriver removal? Cox_ba12




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[solved]Medallion 09 Propdriver removal? Pixel

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[solved]Medallion 09 Propdriver removal? Empty [solved]Medallion 09 Propdriver removal?

Post  Ivanhoe Tue Dec 06, 2011 1:56 pm

Now I've found the bits I need, can anyone tell me the correct way to remove a Medallion .09 propdriver and fit a new one? I've seen tools available to do it on 049s, but I'm sure they won't fit an 09!

Wilf


Last edited by Ivanhoe on Wed Dec 07, 2011 5:11 am; edited 1 time in total
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Post  nitroairplane Tue Dec 06, 2011 2:01 pm

Here it was posted on the cox engine collection site.
http://sites.google.com/site/coxenginecollection/replacing-a-broken-crankshaft-in-a-post-1959-babe-bee
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Post  Ivanhoe Tue Dec 06, 2011 2:10 pm

nitroairplane wrote:Here it was posted on the cox engine collection site.
http://sites.google.com/site/coxenginecollection/replacing-a-broken-crankshaft-in-a-post-1959-babe-bee

No, I've seen that, that's replacing a broken crankshaft, I need to know how to pull the old propdriver off with the crankshaft in situ. On the 049 I know you can fit a propscrew then use it to gently tap the shaft backwards (Having removed the piston, of course) but the 09 has a "Stepped" propdriver and you can't see the end of the shaft, so I need to know if you can do it the same way.
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Post  nitroairplane Tue Dec 06, 2011 2:21 pm

Oh yes i believe you can.
But on 2 engine with bad drive plates i used the tool for cutting wires (the name has escaped me)to pul it off at the case.
But i cannot recommend it because if not done with caution you will damage the engine.
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Post  SuperDave Tue Dec 06, 2011 2:55 pm

Indra:

The tool that you used was mostly a pair of diagonal cutting pliers a.k.a. "dikes"
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Post  nitroairplane Tue Dec 06, 2011 2:58 pm

Yep thats them Dave.
I use them a lot for various things but the name escaped me.
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Post  SuperDave Tue Dec 06, 2011 3:05 pm

Indra:

You might try "dikes" when cutting your toenails. Rolling Eyes
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Post  nitroairplane Tue Dec 06, 2011 3:14 pm

SuperDave wrote:Indra:

You might try "dikes" when cutting your toenails. Rolling Eyes

Are you speaking from personal experiences?
I find toe nail clippers to be sufficient.
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Post  Ivanhoe Tue Dec 06, 2011 4:16 pm

nitroairplane wrote:
SuperDave wrote:Indra:

You might try "dikes" when cutting your toenails. Rolling Eyes

Are you speaking from personal experiences?
I find toe nail clippers to be sufficient.

I always find a pair of bolt croppers does the job Laughing
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Post  Ivanhoe Tue Dec 06, 2011 4:19 pm

nitroairplane wrote:Oh yes i believe you can.
But on 2 engine with bad drive plates i used the tool for cutting wires (the name has escaped me)to pul it off at the case.
But i cannot recommend it because if not done with caution you will damage the engine.

I did think of that, or possibly levering with a pair of thin screwdrivers, but quickly dismissed both ideas!
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Post  nitroairplane Tue Dec 06, 2011 4:21 pm

Maybe.
It is possible to do but if done wrong you will foul the case/collet/crank.
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Post  RknRusty Tue Dec 06, 2011 4:38 pm

I just posted this in the other thread. The Medallion instructions say to use the engine tool to unscrew the carb retaining collett and it will push off the drive plate. It's on every .049 tool. It's a 1 toothed cutout in the middle of the Cox wrench. It works great on Tee Dees too.

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Post  nitroairplane Tue Dec 06, 2011 4:41 pm

How come I never thought of that it would have saved many a driveplate in my early days!
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Post  Ivanhoe Tue Dec 06, 2011 5:03 pm

RknRusty wrote:I just posted this in the other thread. The Medallion instructions say to use the engine tool to unscrew the carb retaining collett and it will push off the drive plate. It's on every .049 tool. It's a 1 toothed cutout in the middle of the Cox wrench. It works great on Tee Dees too.

Great stuff, thanks, Rusty, best idea yet!
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