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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: Larry Wong on July 01, 2011, 06:52:03 PM

Title: Picco 1/2a
Post by: Larry Wong on July 01, 2011, 06:52:03 PM

Just wondering if anyone that is using a Picco 1/2a engine is having broken crankshaft problems , some sites have this problem and saying that the crank opening was square cut , and a radius with a grinder would fix the problem?  http://www.rcuniverse.com/forum/m_8380332/mpage_10/key_/tm.htm

Title: Re: Picco 1/2a
Post by: Al Ferraro on July 13, 2011, 08:28:28 AM

Mine broke at 29,000., just like the one's in the photo on the RC forum.
Al

Title: Re: Picco 1/2a
Post by: Patrick Hempel on November 04, 2011, 01:17:01 PM

mine broke at 32,000 the shaft was relieved in the area where the problem was thought to be, it still broke in that area.
I believe it is breaking due to using a high rpm starter. I had no problems till I got a new starter?