any AZ members want to make some $$ helping me adjust roller rockers

[cranknut67]

just like the post says. I have never adjusted roller rockers before and I need a little help finishing up the job. I have it pretty close I think, but need a seasoned veteran to help me finish up.
pm me if interested.

thanks.

[Hotrodhenryj]

What exactly is the problem your having, are you doing it with the motor running? Rollers are no different to adjust than stock ones. Do it exactly the same way, then tighten the polylocks.

[cranknut67]

I dont know what they should feel like. I blew up my last motor so i am not sure that I am doing things right

[Hotrodhenryj]

With the motor running, loosen each rocker untill it starts knocking. Tighten it untill it quiets and then go another 1/4 to 1/2 turn. Do each one this way untill all are adjusted. I have a set of covers with the center section removed for this job. This keeps most of the oil in the motor. Good luck

[ratrod67]

adjust the preload, the lifter must be properly located on the base circle or "Heel" of the lobe. See figure below.



At this position the valve is closed and there is no lift taking place. You will need to watch the movement of the valves to determine which lifter is properly positioned for adjusting.

1. Remove the valve covers, and pick a cylinder that you are going to set the preload on.

2. Hand rotate the engine in its normal direction of rotation and watch the exhaust valve on that particular cylinder. When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm. (Why? Because when the exhaust valve is just beginning to open, the intake lifter will be on the base circle of the lobe, the correct position for adjusting the intake.)

3. Back off the intake rocker arm adjuster and remove any tension from the pushrod. Wait a minute or two for that hydraulic lifter to return to a neutral position. The spring inside the lifter will move the pushrod seat up against the retaining lock if you give it time to do so. (If you are installing brand new lifters they will be in the neutral position when they come in the box.)

4. Now spin the intake pushrod with your fingers while tightening down the rocker arm. When you feel a slight resistance to the turning of the pushrod, you are at "Zero Lash". Turn the adjusting nut down one half to one full turn from that point. Lock the adjuster into position. The intake is now adjusted properly.

5. Continue to hand turn the engine, watching that same intake. It will go to full open and then begin to close. When it is almost closed, stop and adjust the exhaust rocker arm on that particular cylinder. (Again, when we see the intake almost closed, we are sure that exhaust lifter is on the base circle of the lobe.) Loosen the exhaust rocker arm and follow the same procedure described before in steps 3 and 4 to adjust this rocker arm.

6. Both valves on this cylinder are now adjusted, and you can move on to your next cylinder and follow the same procedure again.

[ratrod67]

oops forgot.. Do it in the firing order 18436572. Make sure your dist is installed at TDC and the rotor faces the #1 plug. Then just

[cranknut67]

I just finished putting it all back together and now I have no noise coming from the valvetrain. just to be sure, monday I will take it to the mechanics I use to have them go over it real quick to make sure. I changed the oil and put about 50 miles on it today and so far I don't see any smoke or anything..
just had lingering thoughts about my combinations are right.

272 crane cam, 18-2000 stal ( can't quite remember)
and some wierd open plane intake - like a victor junior sir gap intake. - this sound like it works together?

[Bernie]

The trick that I was given and has worked well for me is as follows. Do like Hotrodhenry says and get to zero lash on all of the valves with the engine running, then switch off ond tighten down by 1/4 turn with engine off. I had to do it several times the first time I tried it before I felt confident that I had it right.

[jugernot]

Thanks for the info, I had the same question. I will give it a shot.

[redbowtie]

Originally posted by Hotrodhenryj
With the motor running, loosen each rocker untill it starts knocking. Tighten it untill it quiets and then go another 1/4 to 1/2 turn. Do each one this way untill all are adjusted. I have a set of covers with the center section removed for this job. This keeps most of the oil in the motor. Good luck

This is how I've always done it.....