[Navarro's XR-7]

hey guys its me again how do you adjust the heads, vavles, rockers? how tight should it be? almost there guys i will post pictures of the engine.i had so much problems with it. all i need to adjust the vavles.i think last time i did not adjust them and my lifter came apart so had to take off the intake again.to retrive the lifter.i have the book but it doesnt say how tight to go.

 

[dark7068]

what kind of book are you using. You have to go thru the firing order TDC and adjust the rockers until pushrods stop turning then tighten 1/4-1/2 turn more. Ill try and find a on line guide,.

Rick


http://www.compcams.com/catalog/020.html

 

[clevelandcougar]

You can adjust them with out going through the firing order, but it is easy to miss a valve or two so I wouldn't recommend doing it that way.
To do it properly...
1. take manifold and valve covers off.
2. turn crank until cylinder #1 is at TOP DEAD CENTER
- both intake and exhast valves should be closed completly.
- if you turn the crank clock wise the #1 piston will go down, and when it starts to come back up the exhast valve will open, this is how I checked to make sure each piston was @ TOP DEAD CENTER.
3. while twisting the push rod tighten down the rocker arm nut, when the push rod doesn't turn easily any more tighten the nut 1/2 turn more, and you are done with that cylinder.
4. Continue doing this by following the firing order.

Make sure to double check your work.
Do not get the rocker nuts to tight or you will create a whole slew of problems such as floating valves, possibly destroying your lifters, and maybe even wiping(flatening) a lobe on your cam.

Good luck!
Cody

 

[Navarro's XR-7]

thanks

the book i have is how to rebulid a 302 engine but what you said about twisting the push rod tighten down the rocker arm nut, when the push rod doesn't turn easily any more tighten the nut 1/2 turn more, and you are done with that cylinder. not even close to whats in the book thanks a million you guys are the best
cougars owners rule!