CYLINDER HEAD,VALVE
AND VALVE TRAIN
HEAD REMOVAL
Remove the Intake and Exhaust manifolds,spark plugs, wires,rocker arm
covers and any other things that are attached to the head. Don't forget
to mark your parts.
A word to the wise do not remove the head while the engine is hot.
Not only is it dangerous but, you could warp the head if you remove it
before it cools. I never heard of anyone doing that but, I thought mention
it.
ROCKER ARM ASSEMBLY
REMOVAL
Loosen each support bracket one after another in a row, just a couple of turns. After
there all the bolts are loose then remove them all.
If you were to take each bolt out of the rocker arm assembly before you loosened
all of them damage would result from the spring pressure.Another words you would bend the
rocker arm tube.
On engines using ball stud type rocker arms.(They have no rocker
arm tube but just a bolt through the middle of the rocker arm.)
Loosen the nut untill you can turn thr rocker arm side ways off the
valveand
pushrod.
REMOVE PUSH RODS
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Take the push rods out and place them in a marked holder. Like the one on the left
or just us a flat peice of cardboard and punch holes for the pushrods and
mark the cardboard for the front and/or left or right side.
This way you will be able to replace them in there original location. |
HEAD REMOVAL
OK, To remove the head you have to
CRACK the head bolts loose in reverse
sequence order of the tightening sequence order. Sounds like a bunch of mumbo jumbo , HUH!
Well what it means is check your manual for the HEAD BOLT TIGHTENING ORDER and loosen them
in reverse order.If you don't have a manual the picture at the right will an idea of how the tightening
sequence would be. Just do it in reverse.
- Start at outside end top or bottom
- Go to opposite end top or bottom
- Just keep going back and forth like this until you have them all loose
- After you have them all loose take them all out
- Making sure you check if the lengths are different an any of them
- If the lengths are different note where they came out of so you know where they go
when you put them when you put the head back on.
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So now all you have to do is pick the heads off the block. There a little heavy so BECAREFUL!
You can take the HEADS to a machine shop and have them rework the Heads or you can do most of it
yourself but , we'll get into that on another page.
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