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Cox Engine of The Month
November-2023
1/2A Nut's

"TD .020 RC"

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Post  Cox International Wed Nov 28, 2018 12:50 pm

Although it is known that the Cox .020 Tee Dee had at least two different-sized cranks over the years (the splined end on some early versions was smaller), is this also the case for the Pee Wee?
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Post  Jason_WI Wed Nov 28, 2018 7:40 pm

Yes. They beefed it up on later engines. Not sure what date that was.
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Post  Cox International Thu Nov 29, 2018 12:10 pm

Interesting and did not know this.

Thanks
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Post  Jason_WI Fri Nov 30, 2018 1:10 am

The Cox Pee Wee .020 actually had 3 different splined end sizes if you also include the heavy car crankshaft version which had a geared flywheel.

.133” for the early version. .155” for the later version. .164” for the car crankshaft.

Pee Wee drive-plate fit 488d9910


I only have a couple of Pee Wee engines to compare in my collection.......

Pee Wee drive-plate fit Bd21d010
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Post  Cox International Fri Nov 30, 2018 11:29 am

Very informative; thank you very much!
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Post  crankbndr Fri Nov 30, 2018 11:41 am

Jason_WI wrote:The Cox Pee Wee .020 actually had 3 different splined end sizes if you also include the heavy car crankshaft version which had a geared flywheel.

.133” for the early version. .155” for the later version. .164” for the car crankshaft.

Pee Wee drive-plate fit 488d9910


I only have a couple of Pee Wee engines to compare in my collection.......

Pee Wee drive-plate fit Bd21d010


58
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Post  Jason_WI Fri Nov 30, 2018 2:04 pm

Save the guesses for later. Smile
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Post  Marleysky Sat Dec 01, 2018 10:34 am

Jason_WI wrote:Save the guesses for later. Smile

Well yeah, you gotta fill up that jar with more of your 020’s!!

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Post  KariFS Sat Dec 01, 2018 12:49 pm

Jason_WI wrote:Yes. They beefed it up on later engines. Not sure what date that was.

Was it at the same time the crankcase nose got thicker too? Looking at the drive plates in your picture, it looks like the one with the bigger hole suits a thick-nose crankcase. If not, then there is even one more variation.
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