Engine's compression
10-23-2004, 11:03 AM
#1
Engine's compression
Hello all!!
I have a Carlsen .12GT engine that's been sitting in my drawer for some time. I took it out and realized that the crank is rather lose and my glow plug is "stuck" (I can't get it out with my cheap axx tools).
I can now turn the crank one full cycle with my bare hands by twisting the shaft, no flywheel attached! (I'm sure as I can see the piston move up and down from the exhaust port).
I am assuming this is not normal? What can I do to build up the compression?
Thanks!
I have a Carlsen .12GT engine that's been sitting in my drawer for some time. I took it out and realized that the crank is rather lose and my glow plug is "stuck" (I can't get it out with my cheap axx tools).
I can now turn the crank one full cycle with my bare hands by twisting the shaft, no flywheel attached! (I'm sure as I can see the piston move up and down from the exhaust port).
I am assuming this is not normal? What can I do to build up the compression?
Thanks!
10-23-2004, 03:08 PM
#2
Tech Apprentice
Time for an engine rebuild.
At least a new piston sleeve.
At least a new piston sleeve.
10-23-2004, 03:14 PM
#3
or you could try a piston resize. theres a thread on it somewhere, sorry i couldn't find it. Look for osrocket on ebay.com
10-23-2004, 03:17 PM
#4
edit: try rayracing.com, supposed to be the best, there's a thread near the bottom of the nitro page
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