If you read the FSM, it will explain quite clearly that the clearances are to be checked when the bucket is at the base of the lobe. They even go as far as to prescribe what degree the timing maks should be when checking each cylinder. For the utmost in accuracy, the head should be torqued to the block. Doing it on a bench will get you 99.999999999% there.

Label the buckets for position and shim thickness. Put the buckets and cams in (use assembly lube), then turn the cams one at a time so the cylinder being checked is at the bottom of the lobe. Insert feeler gauges to measure clearance, record the result on a chart and move on. Once done, check the results and do the math to get out of spec clearances into spec. Mix shims (only) to adjust the clearances if you need to and are able to.

 

Use a feeler gauge to determine the gap beteen the base circle and the shim. The only requirement is make sure that any part of the ramp of the cam is clear of the shim.

Intake is around 0.008" and I believe exhaust is 0.013", but double check the numbers.

 

Thanks for the replies!

99.99% is where I'm trying to get. I know I'll have to check them again once the heads are back on and the timing belt. I figure it's a good idea right now if I have to make any major changes.

So as long as the "tip" of the lobe is 180 degrees from the bucket then I'm good to go if I read that correctly. I thought as much but wanted to double check.

Yeah it's suppose to be 0.008" intake and 0.010" exhaust.

Thanks again!