You know you are into some serious car doctoring when you have to get the ice packs out. More to come on my 64 Coupe de Ville resuscitation in the next 1963/64 Cadillac Chapter Newsletter! Mades some serious headway on honing in on the valvetrain noise issue ... and it was not quite what I expected. More to come in the next newsletter!
Great to read that you got to the source of that annoying "tick" and that Dino is back on the road again. And that engine compartment looks soooo good! I never knew these cars had so much gold cadmium under the hood.
I got some interesting replies on the lifter issues. I think the point most people have missed is the fact that 7/100ths of an inch is a big visible difference. Tolerances for these parts are in the 1000ths and 10,000ths, not 100ths. I had a couple suggess the lifter just wore down that much... that would be mind bending that in 3000 miles the lifter wore down perfectly flat retaining a like new surface appearance, and the other 15 lifters were completely unaffected. I think it has got to be a miscast but I'm keeping an open mind. I did not need a caliper when I looked a the lifter sitting below the rim of the lifter bore, and defintely didn't need one when I sat it next to a good 2" tall lifter as seen below. This is one of the reasons I didn't want to try and explain it in a few sentences here and instead try to give details with pictures in the newsletter article. The only thing I might add is that perhaps and maybe more plausible it is the incorrect lifter for my engine. More could be the same but height intended for another engine? Who knows... but for now we are good... knock on a metal valve lifter.... just don't squash it down short!
So.. here again is "shorty" next to a correct height new lifter...
See ! SIZE does count ————-often !!
Especially when you are trying to "push your rod!"
That is hysterical
I just keep laughing to myself