Guys, its amazing how a nice uncomplicated day turned into frustration! i have Y block engines everywhere here, one a long time project that is now moving forward so after trial fit up, gapping the rings and about to lay the crank, i noticed the new .020 main brgs have a delamination in the bearing material, so ordered another set and packed the lot up. Then turning to 272 + .060 boat engine, checked the ring gap, after opening new pkt of rings and there are 2 top rings missing *^&#%! Order another set of rings and go to lay the crank and theres something wrong here! the crank was tagged and also marked as .030" pins, .020 mains but once i measured it up was .040" on mains and .020 pins, wtf! This crank had to be saved as had the dog clutch fitting welded to it on the end. now im on the hunt for .040 main set.
It now appears the machine shop guy put wrong owners tag on crank afterwards, so this job is now covered up. The new brgs just arrived for 1st engine so heres hoping today!
I think its a good lesson to trust nothing and measure everything even if comes from machine shop. My old shop closed after owner died quite a few years back, never had a problem, in 30 yrs, but since trying others, everything is a comprise or the like.
yyy
AussieBill YYYY Forever Y Block YYYY
Down Under, Australia