pginter96 Posted March 17, 2015 Share Posted March 17, 2015 (edited) Just a few quick things, -1997 -Shim over bucket are these hydraulic, or are the HLAs a different valvetrain style? Measured excessive valve clearance on both an intake (.009 in) and exhaust (.010) on the same cylinder. How do I adjust valve clearance? Do I have to get a shim kit, and where could I find one? Also, is there anything I should know about break-in for this motor? are shim-on-bucket motors similar to flat tappet cam motors in break-in procedure? Thanks all! Edited March 17, 2015 by pginter96 Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted March 17, 2015 Share Posted March 17, 2015 No hydraulic adjusters on that engine that I'm aware of. Lash clearance is adjusted by removing shims from the bucket. It's usually best to check the clearance, the if that valve needs adjustment remove the shim and measure the thickness (or look to see if there is a size etched or stamped on the bottom), add or subtract to determine the desired clearance and order a new shim to match. People have also swapped shims from one valve to another to obtain correct lash clearance. This saves a bit of money since buying 16 new shims can add up. Quote Link to comment Share on other sites More sharing options...
pginter96 Posted March 17, 2015 Author Share Posted March 17, 2015 Couldn't swapping the shims cause them to wear excessively? Again, similar to flat tappet lifters? Quote Link to comment Share on other sites More sharing options...
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