OST-053: Massaging a 20V Blacktop

[oldeskewltoy]

nearly a month later....

We sent out his crank, and the Toda oil pump gears to get WPC'ed - http://www.wpctreatment.com/





Now that they are back, bearing clearances are set to .0015" for the main bearings, and .0018" for the rod bearings - in the range specified by the FSM.

Additionally we now have a deck (.004" piston above), so the somewhat common .8mm head gasket is getting too thin with our deck - .028", so we have decided to get the Cometic .040"(1mm) gasket. This will allow a slightly more generous .036" squish (versus a .032" squish).


As to our new internals - mass savings of 20 grams... Blacktop stuff is pretty well optimized.




Now that all the machine work specifics have been finalized, this block is getting the Eastwood black coating I first used in OST-050.... so more time between postings....


more to come...