Got the gasket set and sludge trap plugs for the RGS Spitfire engine. Thought it would be just a matter of assembling but........ When I took it apart, one piston was badly seized, but no worry, have a fresh cylinder/pistons waiting to go on.
Rods turned on the crank nice and smooth with the least bit of side play and no discernible vertical play. Getting them off the crank for sludge trap/oil passage cleaning was a bit of a fight, but crank journals/big end bearings all looked good. Before removing the rods from the crank I marked them "L" and "R" with a felt tip pen (I know, drilled rod on the left, but a big black letter as a reminder couldn't hurt).
So this afternoon I install sludge trap and plugs, pick up the rod marked "L" and lo and behold, no oil passage. The one marked "R" had it. Okay, must have marked them wrong. Installed the correct rod on the left journal. No vertical play, but quite a bit of sideways rocking (not sideplay). Put the other rod on the right side. Tough getting the rod cap on, had to tap it with a plastic mallet and it started binding before I even got it snug. What the hell??????
Took them both back off and for the hell of it put them on the wrong journals. Right side binding and left not quite right either. Frustration setting in. Both back off and measured the journals. Nicely matched and no measureable out-of round with a caliper. I'll recheck with a mic tomorrow. Assembled rods/bearings/caps off the crank and again measuring with calipers, right one seems out of round. Put it all back on the shelf and beadblasted some Triumph cases instead. (oh sorry, I used the "T" word)
I have what appears to be a set of reconditioned rods with brand new bearings and bolts. Not labeled, but assembled as above they seem to be .020" smaller than my crank journals, so I suppose I could have the crank ground but that seems a waste of a lot of crank life. Wondering if I could have damaged the rods. Or maybe the bearing shells. Think I'll leave it on the shelf and work on something else while I think about it. Trying to do a low budget build but it's got to be right. Sometimes those two things aren't compatible.