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Old July 29th, 2010, 11:18   #4
m102404
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Join Date: Apr 2006
Location: Toronto
Personally...I'd rather toast a piston if something was off than to mangle a gear set. i.e. sacrifice the poly/nylon piston if there's a crash

I'd double check your Angle Of Engagement (AOE).

Did you go for a normal, high torque or high speed gear set?

On your next setup...you might consider "dumbing" it down a bit with a 8.4v mini battery first, just to double check that everything is working right before you goose it with a higher voltage battery.

**edit**
Also...strongly consider completely removing the second tooth of the replacement piston (in your pic the second from the right). It won't affect the strength of the piston nor significantly affect the ability for the sector gear to pull the piston...and it will hedge your setup so that the first tooth of the sector clears the piston teeth to engage at the beginning of the pull stroke.

Last edited by m102404; July 29th, 2010 at 11:22..
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