Catalog #4730
Brochure #63-0210
Page 2 of 4
©2003 Edelbrock Corporation
Rev. 10/03
INSTALLATION PROCEDURE
1. Make sure the engine is cool and the vehicle is on level
ground. Set the parking brake. If you have an original
equipment radio with anti-theft protection, make sure to
write down the code before disconnecting the battery.
After installation, you will need this code to restore radio
operation. It is recommended to clean the valve cover, as
well as the area surrounding the valve cover, to avoid
getting dirt or debris into the engine. Disconnect the
negative cable from the battery.
2. Disconnect the PCV hose and ground wire from the valve
cover. Using a 10mm socket, remove the four cap nuts
holding the spark plug wire cover. Remove the spark
plug wire cover and remove the spark plug wire boots
from the spark plugs. Using a 5/8” spark plug socket,
remove the spark plugs. This will make turning the
engine over in step 5 easier. Using a 10mm socket,
remove the remaining eight nuts and washers holding
the valve cover, and carefully lift off the valve cover.
(Note: Inspect the valve cover gasket and rubber
seals surrounding the spark plug holes. If they are
in good condition, they may be re-used).
Set the
cover, gasket, and seals aside.
3. Loosen and remove the three distributor mounting bolts
using a 12mm socket. Remove the distributor from the
cylinder head and rest it carefully next to the head, you
do not need to unplug the distributor from the wiring
harness. Be careful not to lose the o-ring seal. Inspect
the seal for damage. If it is in good condition, it may be
re-used.
4. Remove the two bolts holding the middle timing belt
cover using a 10mm socket. Remove the middle timing
cover and set aside.
5. Turn the steering wheel so the front tires are pointing to
the left. Now you can access the crankshaft pulley bolt
through the fender liner. Rotate the engine counter-
clockwise using a 19mm socket until the no. 1 cylinder is
at top dead center (TDC) on the compression cycle. The
no. 1 cylinder is at TDC when the white TDC mark on the
crankshaft pulley is aligned with the pointer on the lower
timing belt cover.
6. Using a 14mm socket, loosen the camshaft sprocket
bolts approximately 1/2 turn. Do not remove the bolts.
Check that the no. 1 cylinder is still at TDC. If not,
continue to rotate the crankshaft pulley counter-
clockwise until the no. 1 cylinder is again at TDC.
7. Remove the timing belt tensioner access plug and loosen
the belt tensioner adjusting bolt 1/2 turn using a 14mm
socket. Push on the belt tensioner to remove tension
from the timing belt, then tighten the adjusting bolt to
hold the tensioner in place.
8. You may now slide the timing belt off of the camshaft
sprockets.
9. Remove the cam sprocket bolts and remove the cam
sprockets, being very careful not to lose the cam keys
that locate the sprockets onto the camshafts. You may
now remove the bolt holding the back timing cover using
a 10mm socket. Remove the cover and inspect the seal
between the cover and the cylinder head; if it is in good
condition, it may be re-used.
10. Using the Tappet Adjuster Wrench, loosen the tappet
adjusting screws on all rockers.
11. Loosen the bolts holding the camshaft holder plates and
camshaft holders (cam caps) using a 12mm socket on
bolts 1-10 and a 10mm socket on bolts 11-14 of each
set of camshaft holder plates
(See Fig. 1-A & 1-B)
. To
prevent any possible warpage of the plates and cam
caps, loosen each bolt 1/3 turn at a time in the sequence
shown. Repeat until all bolts are fully loosened.
Fig. 1-A - Intake Cam Plate Torque Sequence
1
3
7
14
10
6
2
4
8
12
11
9
13
5
Fig. 1-B - Exhaust Cam Plate Torque Sequence
1
3
7
14
10
6
2
4
8
12
11
9
13
5
