no compression after lashing valves

[ShiftTheDrift]

I'm attempting to find out why after lashing my valves, the engine has no compression.. or at least it seems.

Before lashing the valves and cranking the engine in the correct rotation, you can feel the compression.. no problem. It takes lot's of force to rotate.

However, after lashing the valves, and rotating in the normal direction of rotation, the engine spins freely. Hence, no hissing sound or resistance.

Any ideas?

 

[99FiveOh]

May be stupid, but are all the spark plugs installed?

 

[final5-0]

Any ideas?

They are lashed tight enough
to
keep them off the seat is my idea

Grady

 

[BlownFiveLiter]

I'm with Grady on this one, because I've personally lashed my valves too tight before with the same result.

 

[99FiveOh]

wow, that makes sense. Valves can't shut because the rockers are bolted down too tight. I'll have to remember this for myself.

 

[Zero Signal]

Yeah you should really measure it with a dial indicator. But that's just me, I like knowing the numbers. Also, give your lifters time to bleed down if you hadn't done that. Otherwise you're fighting the spring when you tighten it.

 

[ShiftTheDrift]

As always, you guys have come through in fine style.

The valves were not seated and therefore all the compression was flying right outta the top end.

The valves are lashed correctly now and everything is good.

Thanks a lot ppl!!