I preset to o lash the 1/2 turn.Go back to number and its lose again.So do i set it again? Question do i sent pumped up on not.
when i start car after set its poping out the pipes.Could push rods be wrong size to?
Please help Thanks Jason/

 

No difference between how to set rollers or ball fulcrum ones. The same the same all the same.

Set them running.

Yes the push rods "could be" the wrong length. Won't have any bearing on this matter though.

 

I never set them running. They will pump up when the engine starts.

 

Engine off, set to zero lash while on base circle of cam, Turn 1/2 and you are done and move on to next one. They will feel "loose" after this which is normal.

One thing you must check is pushrod length with roller rockers. Mark the top of the valve with a sharpie and install the rocker like mentioned above. Disconnect ignition and turn the motor over with the starter. Remove the rocker and check the sweep pattern across the valve. if it is not near the center you need different length pushrods.

NOTE: You can set them with the engine running but it can be messy.

 

This is the reason i do them on the stand. Plus it is A LOT easier to do right in front of you instead of leaning over a car.

 

Hydraulic lifters need preload. Doesn't matter if they're flat tappet or roller lifters.

With the lifter on the base circle of the cam, adjust the rocker to zero lash. Wiggle the pushrod as you tighten the rocker and stop just as any looseness is gone. That's very close to zero lash. Now tighten the rocker 1/2 - 3/4 of a turn more. That sets the lifter preload. As the pressure bleeds off, the pushrod will feel loose again. This is normal. Don't tighten the rocker any more.

Roller lifters and flat tappet lifters should use the same length pushrods however with so many variables such as head gasket thickness, valve length, valve seat depth etc, a stock length pushrod may not be ideal.

It's always common to get the rocker tip sweep in the center of the valve tip but the most accurate pushrod length will give a small a sweep as possible even if it's not directly on the center of the valve tip. Idea pushrod length is measured at mid lift. The easiest way to find out what length pushrod you need is with an adjustable pushrod and one of these.

http://www.jegs.com/i/Proform/778/66789/10002/-1

If the length is correct, the tool will sit on the pushrod and on the tip of the valve. If the tool is off the valve, a shorter pushrod is required etc.

You can adjust all the valves in two rotations on the crankshaft.

Simplest way to adjust valves without having to guess if every cylinder is at TDC by doing them one at a time. If you have a standard firing order of 18436572. Bar the engine over until the timing mark lines up to TDC. This will either put #1 or #6 piston at TDC of the compression stroke. Adjust 8 of the valves then bar the engine over to TDC again and adjust the other 8 valves.

#1 TDC you can adjust
INT 1,2,5,7
EXH 1,3,4,8

#6 TDC you can adjust
INT 3,4,6,8
EXH 2,5,6,7

Without removing a spark plug, you can see if you're on #1 or #6 TDC by looking at the other valves. If you're on #1 TDC, 3,4,6,8 intake valves will be noticeably open.

 

Thank you...