Currently doing my first engine rebuild without any machine work done.
I'm putting in a set of Wiseco pistons (9:1 CR) in with some rods, all the oil clearances are within spec with the rods being on the tight side of spec. and now I'm down to the piston rings.
The first set of piston rings i screwed up because i decided it was a good idea to start filing rings when i was half asleep and somehow got inches mixed up with mm on the feeler gauges making my top ring gap to be 0.031" and 2nd ring gap 0.048"
So far 1 set of rings is on the to buy list.
Now to list the measurements of the rings un-filed:
Piston 2
Top 0.508mm
2nd 0.676mm
Piston 3
Top 0.330
2nd 0.610
Piston 4
Top 0.406
2nd 0.635
Each cylinder has a taper of aprox. 0.03-0.005mm
Now for the actual question:
Should i file all the rings out to the largest value (Piston 2)
or
Should i see if Wiseco makes fileback rings and file them all back to spec. Which is 0.508mm for top ring and 0.558mm for the 2nd one?