Doing a ring job on this engine. Checked end play on crank - about .035". Not sure how to check cam without special tool, but I put two long screwdrivers down lifter bores to pry against sides of lobes - had enough play to feel but very small compared to crank. My guess is I don't need to worry about the cam? I see the Kohler manual says there's a shim to adjust crankshaft end play. I found no shim on crank or cam. I don't think I could possibly have missed or lost something like that. I'm not experienced on these Kohlers, so I need someone who is. Help! Thanks.