I need an opinion on these compressions numbers...

[Hoosierman]

Still trying to sort out a no start condition but I keep thinking back to the valve lash adjustment that I performed when I had everything off because of the leaking valve covers. So I did a dry compression test on all six cylinders and here is what I got:

1- 110psi
2- 140psi
3- 145psi
4- 150psi
5- 150psi
6- 140psi

I even retested #1 with an ounce of oil in the cylinder and it read 120psi thereafter. I know the 110psi is a significant drop (more than 15%) from 140. Significant enough to make a difference?

 

[alwaysFlOoReD]

That shouldn't prevent a start.

 

[Hoosierman]

Didn't think so.

About the low PSI number, should I look to adjust the valve lash anyway?

 

[Blmpkn]

Didn't think so.

About the low PSI number, should I look to adjust the valve lash anyway?

It certainly wouldn't hurt. Fingers crossed that's all it is for you

 

[Snoranger]

If you’re looking for a no start problem… you didn’t find it there. I’d leave that alone until you find and fix the no start problem.
Fix one issue before you dig into it a create another.