Valve Leakage Check?
 

Hey Everybody,

I have E-heads with swirl polished valve, solid roller springs and multi-angle seats.

I tried windshield washer fluid and the inner springs installed without the spring pocket shims - the valves wept after a couple hours and puddled in the ports overnight.

Valid test? or is there a better way to check for leaks with the heads off?

Thanks Again, Craig

Re: Valve Leakage Check?
 

I don't know what E heads are, but I use vacuum, with a gauge, to test for leaks. I check mine with the full spring on.

Re: Valve Leakage Check?
 

On the car with a leak down tester is best. Off the car your going to get mixed results. Springs should be set as per race ready pressure, use Alcohol tinted with some color. If the valve is bent it will show almost right a way.

Re: Valve Leakage Check?
 

Yeah if it poors out as you fill I'd check the valves or the angles. Once the motor fires it's gonna seal up so that seepage should not cause any sleep loss ;)

Re: Valve Leakage Check?
 

If you have them off Go ahead and face the valves. Every new set of E heads I get in the shop I face the valves. (for flow cut a small back angle on the intake) Very few of the new valves have acceptable runout. The face angles are always a little off. The seats always seem to be ok and don't need attention. If the heads are used do a good valve job on the seats. The heat cycles on new alum. heads always causes alittle movement in the seats. It is just normal and one of those things that happens to new alum heads. It is a bummer to have to face valves on brand new heads, but it is more of a bummer to put new heads on an engine that are leakers. It is just Std procedure, whether I furnish the new heads or the customer does.

Re: Valve Leakage Check?
 

Hey Everybody,

Thanks - You guys are always great and very helpful.

Take Care, Craig