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Old 06-16-2010, 05:28 PM   #1
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Help!!!What is a fresh pinch?
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Old 06-16-2010, 05:38 PM   #2
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An engine that has just (ie fresh) had it's piston and sleeve resized (ie pinched). Basically it's like putting a new piston and sleeve into a used motor as you have to break the engine in again.
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Old 06-16-2010, 05:40 PM   #3
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Help!!!What is a fresh pinch?
It is when you want to get your girl friend's or wife's attention or what marshon50 posted
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Old 06-16-2010, 05:40 PM   #4
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Its that show that had Will Smith on i think
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Old 06-16-2010, 06:01 PM   #5
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An engine that has just (ie fresh) had it's piston and sleeve resized (ie pinched). Basically it's like putting a new piston and sleeve into a used motor as you have to break the engine in again.
why pinch when its a piston and sleve? Thank you for the answer to my question>
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Old 06-16-2010, 06:24 PM   #6
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why pinch when its a piston and sleve? Thank you for the answer to my question>
Technically, it's not a "pinch" in the literal sense of the word. The sleeve is placed in a collet-type of device that compresses the diameter, thus "pinching" it down to a smaller size. This is done to restore the mechanical interference that nitro motors need to run properly, since they do not have compression rings.

Pinching a motor is an alternative to purchasing a new one. As long as the sleeve and piston is not scratched, you can pinch an engine 2 or 3 times before needing replacement piston/sleeve. It's a good way to save some cash.
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Old 06-16-2010, 11:36 PM   #7
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why pinch when its a piston and sleve? Thank you for the answer to my question>
Because these engines do not use piston rings which you must replace when loosing compression you have to replace the whole set or have to re-pinch the set.
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Old 06-24-2010, 04:55 PM   #8
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so who can i send an engine to so i can get it pinched?
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Old 06-24-2010, 05:14 PM   #9
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so who can i send an engine to so i can get it pinched?
Dion Potter he does excellent work i will pm u his number.
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Old 06-24-2010, 05:17 PM   #10
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so who can i send an engine to so i can get it pinched?
rayaracing.com. Excellent quality and service. Just got one today and it's as good as new.

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