Testing for a collapsed or bad roller lifter
Got to the bottom to see question.
Well, I'm pretty sure I have "A" collapsed lifter #8 exh. About 3 yrs ago and 30,000 miles after some burnouts/dounuts. I had a bad ticking, found a rocker arm completely loose about to fall off the valve(tightened and was fine). Then a few weeks ago a faint ticking started. I swapped in some 1.6 RR and the ticking turned to loud clanking and very poor driveablity. I put the stock ones back on and finally got the clanking to go away(about 3 times adjusting all the rockers) by tightening the #8 exh rocker down tight (I mean like at least 1-2 turns more than all the others). I didn't check to see if the stud was pulling out.
The car runs good now(quiet), but ran 1.5 miles slower (.1 sec faster et though). I assume they're just a little tighter than before.
Is there anyway to physically check a roller lifter when I do a cam swap. I'm going to change out the one for sure, but I would like to "test" the others (16 in the engine and 16 from another engine) both have 100-115K miles.