Schubeck lifters

[Mike Taylor 3601]

Originally Posted by Dan Fahey

Not it is not.
Especially with all these comments.
The Spring Rules needs to be looked at.
If no change fine...
But the current spring rule is breaking too many engines.

Seat Pressure and Open Rate can be regulated.

D

It isn't the spring pressure breaking parts,95% of valve train failures aren't from excessive spring pressure,they are caused by too low of spring pressure which lets lifter bounce and not follow cam lobe, which breaks ceramic lifters or axles out of roller lifters,pops the heads of valves,burrs keeper grooves, beats seats out wide,wears guides out, stretches timing chains, pops rocker studs and rockers in two.
Every lobe has a limit no matter how much spring you have there is a RPM which it becomes unstable and starts self destructing the valve train.

Larry may have just had lifter get fatigued or damaged some how and caused failure.
Mike Taylor 3601