how to check if pinch is good on an engine?
#16
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As for a used engine, how long it should not flop over? For 5 second? After 5 second flop down mean still ok? Please advise. thanks.
#17
Tech Elite
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you cant only judge by the engine at room temp, it might feel like it has life, but once it runs for a little bit, it may die once everything heats and expands. my buddy had an old losi mach427 that would start fine...run for a few minutes then it would die and not start up again
#18
There are places like RayARacing that'll do a sleeve resizing for less than it'd cost to buy a new set. Basically just send the guy your piston & sleeve and he'll place the sleeve in a fixture that kinda "crushes" the pinch back in.
#21