Valvolean

[albanycobra]

I set my pushrod length at 50% valve lift at cam and the rocker at 90deg to the push rod for a starting point.

[LoBelly]

Originally Posted by albanycobra

I set my pushrod length at 50% valve lift at cam and the rocker at 90deg to the push rod for a starting point.

I think I must have been typing ... looks like we've both used the same

method.

LB

[Gaz64]

Just to clarify, is it not the valve head that has snapped off, which happens from piston contact.

The valve stem has snapped just under the valve collets from side loading, from the rocker arm pushing the retainer at early valve lift.

That would be a rare failure, but it shows the strength of your collets and retainer.

I would hope all of the valves were inspected for this condition.

Now this time, with the light spring fitted, every clearance needs to be checked, valve to piston clearance, retainer to rocker, rocker to stud etc, throughout the full 4 stroke cycle of the engine.

Gary

[Bernica]

I just hope you can find all those pesky little metal parts that went somewhere when it broke!