setting solid cam valves ??
guy down the street building a 302 chev and has roller rockers and factory replacement solid cam.
he had it going and took it for a spin and came back popping two cam locks had backed off and rockers right off. couple other loose
took a look at the valve clearance when he had it apart and said way too much .cam stated 24 intake 26 exhaust.
he got the intake off and i asked when did he adjust them. he told me when the piston would be at top dead center. i advised tooo loose as valves will be opening well before that. lifers have to be on bottom of bore when adjusting clearance.
i still think the clearance still seems excessive even at the above specs as the rockers seem really loose at the bottom of the lifter travel.
i have not dealt much with solid cams in cars but clearances shure seem to be a lot even a 24 thou and does this not cause a clatter even when hot?
someone smarter than me please explain excessive clearances on solid cams and why and does this not lead to upper valvetrain and pushrod damage ???
Something to make you go Hmmmmmm
:HMMM:
What say you are putting a solid cam motor together and the clearances state 28 E 26 I, You want to check piston to valve clearance, just to make sure that the valve wont hit the piston.
Using the plasticine impression and knife method:
Would you check this with no valve clearance as you wound the motor over,
or
Would you check it with the valve clearances mentioned above, remember, that on a SBC the rocker ratio is 1.5 to 1.
:confused: **) :D