07-07-08, 17:27 GMT+10#1
im getting a deep tapping noise at around 2200 RPM both when free reving and under load. the noise has only started since i have replaced the head (ported and valve grind) which has a regrind cam (wades 1104), new lifters and machined lifter boxers. i have checked bearings and are all good. on the way home tonight i was getting lifter noise very bad (ticking) and also sounded has if something was rattling or loose and then back firing (im thinking it might be valve springs binding). cheers any help would be great
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