DAICROCKet

Are the wrist pin, big bearing and conrod the same for the techno, and evo due to the engine being identical?

I just wondered if the evo conrod kit is the same butt.. techno kits are rare and pricey

Hi everyone, im wondering if anyone has any information on the differences between the techno and evo. I've reverted to using a evo manual to rebuild my 98 techno engine due to the case and internal similarities. Are the cranks the same for the evo 250 ? As I'm struggling to source a techno crank rebuild kit, and hoped maybe the evo kit will fit,?

I've tried feelers with piston top flush and guess what.. can't get a 1.5 thou down there!!

Thanks for the info guys... I've read many threads stating 1 thou per inch = 0.0028 for a 72.48mm bore. So If the piston is 72.457mm leaving a tolerance of 0.023mm equating to .0009 of a thou!! So if I put a standard 72.451mm equating to 0.029mm or 0.00114 I'm confused as that would also be tight!! Does anyone know where I can access beta tolerance data? Am I measuring the bore wrong as it is stated as 72.5??

The skirt diameter for an A piston is 72.451, so that's why I can't understand how I've got a B piston bud

Piston is new and marked 72.457. Cylinder is also new which is why I'm slightly worried about the clearance! The seller in Italy states it's paired what ever that means

1 thou is 0.0254mm so 0.030 is larger ?

Does anyone know offhand, what a new cylinder measures? I'm getting 72.48 with telescopic guages and calipers...

Hi guys, After much deliberation, I managed to purchase a new cylinder kit from molinari in Italy.. on looking to fit, I have found that the piston is a type B of 72.451. I've measured the cylinder and get 72.48/9. On working the tolerance , I get near 0.030mm ... which is around 1 thou.. Will this seize ?

Anyone know the specs for the rings ...