CLASS RACER FORUM - Another valve setting question........curious

CLASS RACER FORUM (https://classracer.com/classforum/index.php)

- Stock and Super Stock Tech (https://classracer.com/classforum/forumdisplay.php?f=4)

- - Another valve setting question........curious (https://classracer.com/classforum/showthread.php?t=41798)

Re: Another valve setting question........curious

Mike I agree 100%. What works in 1 case may not in another. It's like saying everyone runs 90 square jets and 40 degrees of timing, works on some but not all. Joe

Re: Another valve setting question........curious

You guys need a P & G valve gapper tool, the old timers will remember

Re: Another valve setting question........curious

Quote:

Originally Posted by BlueOval Ralph (Post 335153)

You guys need a P & G valve gapper tool, the old timers will remember

Still have one.

Re: Another valve setting question........curious

Remember this? I guess when a tool came in a wooden box...it's OLD!!!

Re: Another valve setting question........curious

SAE was who came up with the "how to" on setting valves. Seems to be more accurate when you set them this way.

Watched dad win $$$ setting valves this way/

Re: Another valve setting question........curious

Quote:

Originally Posted by Jim B (Post 335196)

Remember this? I guess when a tool came in a wooden box...it's OLD!!!

Yep. Have the box and adapters.

Re: Another valve setting question........curious

Quote:

Originally Posted by 1320racer (Post 335084)

EO/IC is the method every professional engine builder and race team uses to set/check valve lash regardless of lobe or lifter type.

Go the the Pro Stock pits immmediately after a round of qualifying, walk over to your favorite Team's trailer/pit and watch them check their valve lash, one cylinder at a time, using the EO/IC method.

The object is to make sure the cam lobe is on the base circle

Setting the intake valve when the exhaust is openings assures that the cylinder is at the beginning of the exhaust stroke and it's intake lobe is closed and on the base circle.
Setting the exhaust valve when the intake is closing assures that the cylinder is at the end of the intake stroke and it's exhaust valve is closed and on the base circle.
I have found this works on every four stroke engine from a Briggs &Stratton to blown hemi.regardless of the camshaft used.
I know a lot of guys use the "Mopar hood sticker method" but Keep in mind that most modern camshafts have more duration & overlap than those 70's Mopar cams.

Re: Another valve setting question........curious

On a fresh setting I always set the intakes first by watching the ex. pushrod just start to lift. That way you are always assured that when you are watching the intake close (because it is already set) you are really watching it go to the correct part of the lobe to be in the right place to set the ex. I also follow the firing order. You only have to rotate the crank 1/4 of a turn to be in the correct place for the next, in the firing order, cylinder. The 1/4 turn works for both intake and ex.
As stated earlier, be very careful about setting valves with the lifter off or past the base circle. If you do you had better "Know Your Cam Lobe"
Ed you have a PM

Re: Another valve setting question........curious

Got two boxes the one I had and the one my partner had lot of adapters and the sleeves also both kits like new also a lot of the original paper work and catalogs

Quote:

Originally Posted by Ed Wright (Post 335214)

Yep. Have the box and adapters.