A year ago I installed an old Clifford solid lifter cam that I bought 20+ years ago but only used for about 25K miles. The performance was no better and fuel economy was much worse (by 8 mpg) than the stock '78 smog motor cam. So I bought the special timing set from our forum host to be able to advance the cam and I had the distributor re-curved (thanks Bill). I installed the timing set last Saturday and early this morning I had a few minutes and I was going to install the rocker shaft. One of the push rods was sitting high and binding in the bore. I wiggled and twisted it a bit and lifted it up. When I lowered the push rod back into the hole in the head it dropped all the way down to the cam!
I have never had a situation where the push rod to lifter contact created such a hydraulic joint that the push rod would lift the solid lifter out of its bore. Now in damage control mode, I (rapidly) pulled the adjacent push rod out of the head to look for the missing lifter - I did it again. Now I have two lifters that are out of their bores and not visible when looking down the push rod holes in the head!! That was 2.5 hours ago and I am still mentally numb. I am so short of time and I had no intention of pulling the head until after this driving season (and only then if I was still unhappy with the Clifford cam).
Since I can not see either lifter when I look down the push rod holes in the head, I presume that I have no choice but to pull the head.
I have never had a situation where the push rod to lifter contact created such a hydraulic joint that the push rod would lift the solid lifter out of its bore. Now in damage control mode, I (rapidly) pulled the adjacent push rod out of the head to look for the missing lifter - I did it again. Now I have two lifters that are out of their bores and not visible when looking down the push rod holes in the head!! That was 2.5 hours ago and I am still mentally numb. I am so short of time and I had no intention of pulling the head until after this driving season (and only then if I was still unhappy with the Clifford cam).
Since I can not see either lifter when I look down the push rod holes in the head, I presume that I have no choice but to pull the head.