60psi @ ~ 44mm and 180psi ~33mm Does anybody know what the stock ecotec valve springs should be? Either my valve spring tester is way off or something is not adding up with this engine. Not with the car having 340,000km on the clock.
Hopefully we still have an engraver at work and I can number the valves there before removing.
Valve spring force as listed in the Holden publication is: @ assembled height: 316-351 N @ 43.7 mm
opened height: 970-1059 N @ 32.4 mm
Valve spring at installed height 43.19-44.19 mm.
Let's hope your beehives are be-having!
As for engraving the valves, a simpler way is to just number/ stamp the heads 1 and 2 (on the front of the respective side). Grab 2 pieces of stiff cardboard, punch 6 holes in each with a screwdriver, number them 1 and 2, mark front on each. Use the #1 for the left bank and put your valves in sequence in the cardboard as they would go in the head. Same for #2.
Yeah, normally I use a bit of 4x2 drilled to suit the valves and keep em in order that way. I'm just using the heads to hold the valves, in the parts wash I laid the valves on a tray in order.
LOL, I've got those number too but what are they in lbs?
I could tell from the original images they were in need of facing.
They aren't that expensive to get done.
Not compared to doing the job over again.
Get a back-cut done at the same time.
Closer inspection looks like that valve has already been faced. The margin is quite small.
