shustack Posted May 3, 2012 Report Share Posted May 3, 2012 Whats up fellas, i just bought a 01 shee that has had some issues. Coolant dumping into the cylinder. Put new orings in the cool head and stopped the coolant leak. Found it had 68mm pistons and a trinity cool head with 20cc domes. And what apears to be a cub style jug. So i put it back together and did a compression test. It had 125psi in the left cylinder and 120 in the right cylinder. So i took it for 2 15min rides and still just didnt seem right. Somebody told me to do a compression test when the motor was warm, so 1 day later i warmed up the motor and did a compression test and the left cylinder was 120psi and the right was 95psi. So i tore it down to find the piston starting what apreared to be melting. I found a cracked reed which was the route of the evil, but the 2 to 1 carb set probably did help either. So i took the jug to get re honed and i need new pistons. On the top of the pistons it sais 7009G 9768M 68 00MM Here is a pic of it I havent found much on it. I Dont know what crank or rods r in it. I found 29l on 1 side of the rod and a r on the other side but from looking around that looks like a stock rod. As for the crank im lost. I also dont wanna tear it apart to just see what crank is in it. If you have any advice i appreciate it Thanks Joe Quote Link to comment Share on other sites More sharing options...
Wildcardracing Posted May 3, 2012 Report Share Posted May 3, 2012 Those are Trinity Wiseco's, they have a banshee pin height and crown in bb size. They are @$170 each and used for short rods. How is your Nikasil in your bore? -Brandon Quote Link to comment Share on other sites More sharing options...
shustack Posted May 3, 2012 Author Report Share Posted May 3, 2012 Those are Trinity Wiseco's, they have a banshee pin height and crown in bb size. They are @$170 each and used for short rods. How is your Nikasil in your bore? -Brandon Fuck me, i got a great deal on it but it looks like i will be paying for it in the end. The nik wasnt to bad but sketchy in one spot, the shop said with his diamond hone he might be able to get it out. But if not looking at 360 to get it re nicked. Is their any other pistons i can use with this set up? Do i have a stroker crank? i was told it might be a 421 cub. Thanks Joe Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted May 3, 2012 Report Share Posted May 3, 2012 Brandon, cut him some domes while your at it. Might help with the blown O-rings. Quote Link to comment Share on other sites More sharing options...
shustack Posted May 3, 2012 Author Report Share Posted May 3, 2012 (edited) Brandon, cut him some domes while your at it. Might help with the blown O-rings. The previous owner was lazy and a idiot. he had silicone around the orings and reeds instead of just buying new orings. After i put it back together they did hold and didnt blow any coolant. but that was at 120psi, who knows if they will blow when their is new rings in their and the comp is up. Edited May 3, 2012 by shustack Quote Link to comment Share on other sites More sharing options...
shustack Posted May 4, 2012 Author Report Share Posted May 4, 2012 got new pistons wooohooo, thanks guys Quote Link to comment Share on other sites More sharing options...
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