Hey guys,
I just did a light overhaul on my 77 chevy 350, 1st I adjusted the valves by counting 3 threads from top down, the only way Ive been shown around this backyard shops is to do them by "HEARING" the valve, loosen it till it makes lil noise then tighten it 1/4 turn, what is the proper way to Gap the Valves. #2 I had the head rebuilt, i changed the rings and placed the opening of each ring in the proper place on the pisting(top ring 1030, 2nd ring 230, and the botton ones one right on top and the other one right in the bottom. the walls are good, you can still see the houning marks in them, so i did a compression test
(after i did all this)
1=120, 2= 120, 3=70,4=95,5=100,6=95, 7=90, 8=90
Im not a mechanic but I thought the compression after I did the rings and head jobs should be like at 130-150? 3rd what causes bad detonation? or something like that, ive been reading on here and it sounds like my friend my have that problem, he things its a bad rod bearing making a sound, but on here something else said could be the problem for making some kinda noise, so whats couses that detonation, and how can it be fix(FOR A 53 straight 6 chevy), thanks guys! this site has all the answers, LOL well most of them
Thanks
Eddie
I just did a light overhaul on my 77 chevy 350, 1st I adjusted the valves by counting 3 threads from top down, the only way Ive been shown around this backyard shops is to do them by "HEARING" the valve, loosen it till it makes lil noise then tighten it 1/4 turn, what is the proper way to Gap the Valves. #2 I had the head rebuilt, i changed the rings and placed the opening of each ring in the proper place on the pisting(top ring 1030, 2nd ring 230, and the botton ones one right on top and the other one right in the bottom. the walls are good, you can still see the houning marks in them, so i did a compression test
(after i did all this)
1=120, 2= 120, 3=70,4=95,5=100,6=95, 7=90, 8=90
Im not a mechanic but I thought the compression after I did the rings and head jobs should be like at 130-150? 3rd what causes bad detonation? or something like that, ive been reading on here and it sounds like my friend my have that problem, he things its a bad rod bearing making a sound, but on here something else said could be the problem for making some kinda noise, so whats couses that detonation, and how can it be fix(FOR A 53 straight 6 chevy), thanks guys! this site has all the answers, LOL well most of them
Thanks
Eddie