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Edelbrock 2122 Manual Del Usuario página 2

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VALVE SPRINGS
CAUTION: WARNINGS ABOUT YOUR WARRANTY
In order for this Performer-Plus cam and lifter kit to be covered
under ANY WARRANTY you MUST use the correct Edelbrock Sure
Seat Valve Springs or original equipment springs. Failure to install
new Edelbrock valve springs or original specification springs with
your new Performer-Plus cam could cause the cam lobes to wear
excessively and could cause additional engine damage.
1.
This camshaft is designed to function with Edelbrock Sure Seat
valve springs #5822 (standard) or #5922 (for use with valve
rotators). Do not use dual valve springs with this camshaft.
2.
Check and set spring height to factory specifications for your year
and model. If using Edelbrock #5822, set to 1.660"; for #5922, set
to 1.600". NOTE: Due to the various settings through the years,
we advise checking Mitchell, Motors, Chilton, or Ford service
manuals for correct spring height setting for your vehicle.
3.
For non-rotator engines, you may want to install Edelbrock Valve
Spring/Retainer/Lock Kit #5896.
LIFTERS
1.
New lifters must be used with new camshaft. Use only the lifters
supplied with this kit.
2.
Check to be sure that all lifters fit freely in the lifter bores.
INSTALLATION INSTRUCTIONS
1.
Coat cam lobes and bottoms of each lifter with MoS2 lube
(supplied) to prevent cam lobe and lifter wear from occurring
during initial start-up.
2.
Install new camshaft with new sprockets, timing chain and lifters.
CAUTION: Use Edelbrock Performer-Plus True Rolling Timing
Chain and Gear Set #7820 (1965-1972-1/2) or #7811 (1973-
1990). Accu-Drive gear drive set #7892 may also be used. Do not
use late model timing chain & gear sets that are designed in a
retarded position and are not recommended for this camshaft
installation. Edelbrock Timing Sets feature three keyways for
specific timing selection. Use locking compound material on the
bolt threads holding timing gear to cam.
recommendations specified in motor repair manual.
camshaft with timing marks lined up as recommended by factory
specifications. See Figure 1. When using Performer-Plus Timing
Chain and Gear Sets (7800 series) with Edelbrock cam and lifter
kits, straight up timing alignment is achieved. If any other timing
gear set is used, it is necessary to check cam position for correct
timing alignment. This requires indexing the camshaft with a
degree wheel to verify timing alignment. O.E.M. or non-Edelbrock
timing gear sets are not recommended for use with Edelbrock
camshafts.
INSTALLING PUSHRODS AND ROCKER ARMS
After the cam is installed and timed correctly (see Figure 1), it will
be necessary to check each pushrod for correct lifter pre-load.
VALVE ADJUSTMENT
1.
Turn the engine over until the No. 1 cylinder exhaust lifter starts to
move up. At this point install pushrod and adjusting nut on intake
rocker arm and adjust to zero clearance between rocker arm and
valve tip. For engines equipped with adjustable rocker arms
(1964-1969-1/2), continue tightening the adjusting nut one-half
turn. Check to make sure that the slot in the rocker arm has
clearance at the stud in the full open and closed positions. If there
is no clearance in the closed position a 0.060" longer pushrod is
©2005 Edelbrock Corporation
Rev. 3/05 - RS/mc
2.
3.
4.
5.
6.
1.
2.
3.
Torque to factory
4.
Install
5.
6.
7.
1.
IMPORTANT INSTRUCTIONS AFFECTING YOUR WARRANTY
Page 2 of 9
required (Ford # D00Z-6565-D). For engines with non-adjustable
rocker arms, continue to tighten the adjusting nut until it bottoms
out. If this adjustment is less than one-half turn, you will need to
purchase the 0.060" longer pushrods from your Ford dealer
(#D00Z-6565-D).
Turn the engine over again until the intake lifter just stops coming
down. At this point install pushrod and adjusting nut on exhaust
rocker arm and repeat the same procedure as above.
The above procedure assures correct hydraulic lifter pre-load.
Repeat this procedure for each of the other seven cylinders. For
non-adjustable rockers, torque rocker arm nuts to 20-25 ft./lbs.
Re-install front cover, fuel pump, water pump, and oil pan using
new gaskets.
Install intake manifold using new intake gasket set and torque
manifold bolts to 18-22 ft./lbs. CAUTION: Hand tighten only the
un-supported manifold end bolts on early model cylinder heads.
Install crankshaft dampener and torque to factory specification (60
ft./lbs.).
INSTALLING DISTRIBUTOR AND TIMING ENGINE
NOTE: Before installing your distributor, check the gear drive on
the distributor and oil pump for any signs of wear. If worn, be sure
to replace with new or you may wear out your camshaft
prematurely. This is especially true when rebuilding your engine
and a high performance oil system is used, which generates a
heavier load on the camshaft gear system. Edelbrock camshafts
are designed to use OEM-type gears and oil pumps only.
Turn the engine over in the direction of rotation until the No. 1
intake valve closes and continue until the pointer on the front cover
is approximately 5 degrees BTDC.
Re-install the distributor with the rotor pointing towards No. 1
terminal in the cap, and with the vacuum advance canister in its
original position.
Lightly tighten the hold-down clamp so that the distributor can still
be turned to determine final setting using a timing light with the
engine running.
Replace valve covers, carburetor linkage and remaining vacuum
and electrical connections.
Re-install air conditioner, if so equipped.
Re-install radiator, fan shroud, and belts (if removed), fill radiator
with coolant and re-connect battery.
Double check all connections, fuel lines, etc. before starting
engine.
CAMSHAFT/LIFTER RUN-IN
CAUTION: Change the engine oil and filter before start-up. Do not
allow the engine to run under 2000 rpm for the first 1/2 hour. Slow
idle speeds will result in severe cam and lifter wear.
Start the engine and bring to break-in rpm.
CAM LOBE WEAR - Cam lobe wear is almost non-existent unless
mismatched parts are used or installation of the cam and lifters is
done improperly. Most cam damage is caused by the timing gear
coming loose due to improper torque on bolt. Bolts holding gear to
camshaft should be torqued carefully and a locking compound
applied to threads of bolts.
CAUTION: Use Edelbrock Performer-Plus Timing Chain and Gear
Set #7820 (1965-1972-1/2) or #7811 (1973-1990). #7820 may
be used on later model engines by changing to the one-piece fuel
Catalog #2122

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