SVTSINR
Club Member
My question is for my neighbor who has a BBC in a Monte. He tells me it's ticking so I take the valve cover off and see that the knuckle fell off one of the pushrods. I replaced the pushrod but set the rocker at 0 preload when reassembled. I estimated this from the other rockers and to be honest I wasn't even sure if it had solid lifters. This lasted a short time as another intake pushrod on the opposite bank broke a knuckle off. Again, I replaced the pushrod, verified it has oil pressure and it runs fine. What could cause these pushrods to fail?
TIA
TIA