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#126 Pablo

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Posted 18 October 2019 - 07:13 PM

Motor disassembly/cleaning:

-No problems found (other than worn can bushing)

-EB bushing is good

-Brushes are evenly worn and still good

-New 6mm AVID BB silver soldered in

-Arm shaft ends polished, checked for wear and straightness, good

-Comm cleaned 

-I plan to prime and paint the can "Hammered Black" Rust-Oleum as soon as the local weather dries up

 

I found a pair of used race mag hubs and glued on Koford M678 "Fish Rubber" donuts  :)

 

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Paul Wolcott




#127 havlicek

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Posted 19 October 2019 - 11:27 AM

Very cool Pablo!  That "Hammered Black" paint makes for an eye-catching and durable motor can.  I've never seen a Mura with that style tag or for that matter with the grooved stack ends.  Even the winding patterns look different.  Not that it matters at all, but it may be someone else's "muscular heart", maybe Pro Slot?  In any case, that's a lotta horsepower!  


John Havlicek

#128 Pablo

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Posted 19 October 2019 - 11:57 AM

Pretty sure it's a Champion G20, they dyed their arms red like that, also they engraved the hi-timed ones "HT".


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Paul Wolcott

#129 havlicek

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Posted 20 October 2019 - 06:04 AM

Makes sense Pablo.  There DOES seem to be a healthy amount of advance dialed-in to that arm...rough-figuring from the relation of the com slots to the stack grooves.  I bet it really sings soprano!


John Havlicek

#130 Pablo

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Posted 20 October 2019 - 08:31 AM

You should have seen it run with the first motor I installed, a blue colored H Power. It was a trench digger with no glue  :laugh2:  I had to remove it and put in in a lead sled, don't remember which one. The G20 is still a real handful of power. When you pull the trigger you better be ready ………..


Paul Wolcott

#131 Pablo

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Posted 20 October 2019 - 06:11 PM

Front wheels given 2 thin coats of polish, all four axle ends wire tied and re-soldered, new Slick 7 racing bushings installed, chassis given a good scrub, then bathed in WD-40. My wire ties aren't pretty, but I guarantee they are tight and will not fail

 

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My refurbished Mura/Champion Grp 20 hybrid isn't pretty but it really screams. I took my time assembling, re-breaking it in, and testing it to my satisfaction

 

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Paul Wolcott

#132 olescratch

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Posted 20 October 2019 - 07:21 PM

Vintage stuff always looks good.
John Stewart

#133 Pablo

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Posted 30 October 2019 - 05:23 PM

Yessir  :)  New Sonic spur is on, motor re-secured with new upper brace. This change from an angled pinion and 45T spur to a straight 8T and a 46T is an improvement for several reasons:

-more gear on a car with violent power is never a bad thing, even if it's only a tooth

-enabled the motor to sit at less angle and closer to the axle

-enabled me to cut about 1/16" off the arm shaft and make the new pinion sit closer to the ball bearing, which lessens wear

 

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New Koford rubber on the rear, new Cobra lead wires, new Parma flag clips, original body pinned up again. Ready for a final test this Saturday before being offered for sale, along with a brand new Toytech body if the new owner desires. I say "test" but this beast is well beyond the "test" stage. More like a final check to ensure all is well before it departs The Wolcott Ranch  :D

 

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Paul Wolcott

#134 Pablo

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Posted 03 November 2019 - 06:11 PM

Post-tune up test results from yesterday:

 

-No problems, it still handles great, drifts real nice, scoots like the G20 Mura it is, a pleasure to drive

-The added tooth on the spur did improve the driveability

-Motor still runs dead cool at 12 volts

-The addition of a BB in the can, new Slick 7 axle bushings, new straight steel pinion and new Sonic spur make the mesh real sweet

 

She is for sale to highest bidder. Stand by for an announcement in "Racer Swap Shop" forum in a few minutes


Paul Wolcott





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