Originally Posted by
RETRO RC
Hey 2fst2c,
I really can't understand how they're wearing so quickly I've just measured the wrist pin out of a 3 year old 50+ ltr 7port i just had rebuilt and it only varies by .03 of a mm from 1 side to the other (3.99 to 3.96)
there must be a problem somewhere in the building of the engine or 1 other thing that hasn't been mentioned is the fuel you run.
Also I'm not a hugh fan of ceramic bearings due to the different components having different expansion rates Ie the steel casings expand more that the ceramic balls ...end result a sloppy bearing right from the start
Like I've said before maybe you need to send it to someone to look at for you
Adrian
I'm running Sidewinder fuel. The ceramic was put in after the 1st set failed. Just because I thought it might help. Not the first motor I've built. Been through a lot of them over time. Each time I take it all down, clean the case and clean it again. Clean the crank and even the carb. Oil the inside and the bearings. Apply light machine oil to the crank, rod, piston and sleeve and assemble. It's not really rocket science to get one together. As long as it's clean. And again, all my other motors run great and have over 2 gallons on them. Except for the new ones that is. I just got some bad parts and that's ok. Like I said, I was a believer and still think they are a great motor when they stay together. But I'm done putting money into them. Maybe I'll wait for the new Gen to come out and try my luck again. Until then, I've got plenty of power in my P5 and C6.