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Before
beginning, Make sure the engine is cold (below 100F degrees).
Its best to just let the car that your going to be doing
this on sit over night.
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Start
by removing the valve cover by removing the 8 cap nuts and
the ground strap bolt.
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Now
remove the four remaining bolts that are under the spark
plug cover. Make sure to set aside all the bolts and washers,
most dealers will have to order these so you don't want
to loose them. Also remove the breather hose. Remove the
spark plug wires and spark plugs (removing the plugs will
make it easier to turn the engine over). Carefully, remove
the valve cover making sure not to damage the valve cover
gasket
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This
is what you now have.
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You
will now need to rotate the engine to TDC We are starting
on cylinder #1 (Closest to the cam sprockets). Do this by
using the 19mm socket on the extension. Locate the access
hole to the crank pulley in the drivers side wheel well.
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Turn
the motor over by turning counter clockwise until the "UP"
marks are facing up and TDC marks on the cam sprockets *Arrow
in the picture* are aligned with each other
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Once
everything is lined up, you can loosen the two intake and
two exhaust nuts for the first cylinder. Starting with the
exhaust valves, Insert the 0.007" feeler gauge in-between
the cam lobe and the lifter. turning the screw in the jam
nut will loosen or tighten the clearance. With the gauge
inserted, gently pull it in and out will slowly tightening
the jam nut screw until you feel a "slight drag"
This is always the hardest part of learning to adjust valves.
The best way to figure out the feel of it is to adjust it
so that the lowest tolerance will fit but the largest wont.
(Basically on this exhaust valve, the 0.007" will slide
in and out smoothly but the 0.008" will only barley
go in) Once you have it to the point where it feels right,
tighten the jam nut while holding the screw (otherwise the
screw will tighten and you will have to do it all over again)
After tightening, recheck the clearance to make sure it
didn't change. TAKE YOUR TIME! its better to redo it that
it is to replace the head! Now do the same thing for the
intake side only but use the 0.006" gauge instead.
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Now
repeat the steps for the next 3 cylinders by rotating the
crank counter-clockwise 90deg at a time. Adjust them according
to the firing order: 1-3-4-2. Once you are done will all
the cylinders, go back and check the clearances again (making
sure to rotate each cylinder to TDC in the same order)
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When
you are all done, Take some gasket maker and apply a small
pea sized dab to the valve cover gasket to each location
shown in the pic. Make sure that the gasket is seated properly.
Place the valve cover onto the head gently and seat it by
pressing downwards on it. Replace the Plugs, Plug wires,
and all the bolts MAKE SURE TO NOT OVER TIGHTEN!. Once complete,
take it for a test drive and listen for any tapping . If
you do hear tapping (more than it was before you started)
let the engine cool down again and recheck all your clearances.
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