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Old 02-06-2018, 12:51 PM   #1
I wanna be Dave
 
Join Date: Oct 2012
Location: Medina
Posts: 2,263
Default Perfect pinion and spur mesh

Way back when I was a kid racing my Associated gold tub RC10, I picked up a number of tips and tricks from the older seasoned dudes.

I always seemed to run my pinion too tight against the spur causing binding or too loose causing sloppy engagement. One of the older guys showed me a neat, easy trick.

He took a piece of paper, just standard notebook stuff, and cut a thin piece about as wide as the teeth of the pinion, and about 4-5 inches long. He slipped it between my spur and pinion and told me to push the pinion in to the spur and snug up my motor. Walla! Perfect mesh and engagement! The paper provides the ideal gap between the two with no guess work. I still use it to this day!
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Old 02-06-2018, 06:48 PM   #2
I wanna be Dave
 
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Location: South FL
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Default Re: Perfect pinion and spur mesh

I still use this trick. Learned about it in an RC magazine in the 80's or early 90s


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Old 02-07-2018, 12:07 AM   #3
Rock Crawler
 
Join Date: Mar 2016
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Default Re: Perfect pinion and spur mesh

Nowadays you can find it in some user manuals. I never used it though.
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Old 02-07-2018, 09:37 AM   #4
I wanna be Dave
 
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Default Re: Perfect pinion and spur mesh

The plastic bags most parts come in work great also...been doing this for years
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Old 02-17-2018, 06:00 AM   #5
Hal
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Join Date: Jan 2016
Location: Southampton
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Default Re: Perfect pinion and spur mesh

I always used a dollar bill. Little thicker than note book papaer but usually easier to find. Go figure I am married to a reading teacher and can never find a pen or paper
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Old 07-19-2018, 06:48 AM   #6
Rock Stacker
 
Join Date: Jan 2016
Location: NorthBay, Ca
Posts: 70
Default Re: Perfect pinion and spur mesh

I haven’t used paper for setting gears. There is always a spot on the spur where the gear clearance between it and the pinion is closest. That is the spot where I adjust the gears for proper mesh. It is a touch thing. I can feel the teeth hitting each other when I wiggle the spur gear against the pinion.

To sum it up, find the spot where the gears are closest and adjust the gears at that spot.
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