Its pretty simple. Get cylinder your working on at tdc (both valves FULLY closed). Then tighten rocker nut till theres no lash in pushrod ( twist it gently with your fingers back and forth). Once youve done that tighten an additional 360 degrees. No more or you can cause rough idle or even a no start condition. I set mine at 3/4 turn past zero lash to be safe.
how do you set valve on 1998 350 vortec
valve lash should be set at 30 thou
The valve lash settings, on your Caterpillar C9 diesel engine, should be set to .007. The valve lash may be slightly different depending upon the age and where of the valves.
There is no valve adj on a 4.0l it has hydraulic valve lifters.
2.0 dohc is set with selective shim fit
Valve clearance of Volvo f12, are set using a feeler gauge on the lash adjuster.
If it is a vortec engine, then there is no timing ajustment. It's controlled by the computer
You have to set the piston at Top Dead Center (TDC). I beleive the lash adjustment (valve clearance) is .004 to .006 in. That means thousandths. Once you have set piston at TDC (valve springs will not be compressed but extended on the compression stroke at TDC). You can now set the lash adjustment by loosening the set nut and bolt. You need a feeler gauge to do this. Set lash on both valves then recheck.
There is no setting....they are torqued to 20 foot pounds.
There is no lash adjustment on Pontiac engines. You simply torque the nuts down to 20 foot lbs.
the timing is set by the computer and cant be changed chilton dose make a repair manual for this car to tell you how to set valve lash
Intake valves are set at 4 thousandths and exhaust set at 6 thousandths.