so i bought new lifters as had a noisey 1 maybe 2 .previously had taken them out to get air out of them put em in oil allen key down the end etc etc. when started was still noisy.

so bought new lifters from conceptua tuning (usually pretty good from what i know ) again in oil got all air out and lifter were nice and solid put them in and put it all back together now has no compression.i did notice when looking at them side by side with my old ones the collar was about 1mm higher on my new ones.any help has anyone had this before .