Jeremiah (jd) said Checking IH with a mic? Do you wear a top hot and gold chain for assembly? : D You have options. 1) Stack washers under retainer, measure washers with dial caliper or micrometer. 2) make a spacer of known length out of pipe and use valve spring shims to fine tune the measurement 3) Use a ruler or yard stick It's not a space ship. Click to expand...