Edelbrock 2103 - Manual (Page 2)

15. Remove fuel pump and fuel pump pushrod. Rotate engine until timing
marks are aligned as in Figure 1.
16. Remove bolts retaining camshaft sprocket. Remove sprocket and
chain.
17. Remove crank sprocket using a gear puller.
18. Remove camshaft.
• VALVE SPRINGS
WARNING ABOUT YOUR WARRANTY:
In order for this Performer-Plus cam and lifter kit to be covered under ANY
WARRANTY you must use either the correct Edelbrock Sure Seat valve
springs or the stock original equipment valve springs. Failure to do so
could cause the cam lobes to wear excessively and could cause addi-
tional engine damage.
1. This camshaft is designed to function either with the stock springs or
with Edelbrock Sure Seat valve springs #5802 (std. retainer set), or for
use with valve rotators, use #5902.
2. For older vehicles and vehicles with high mileage we highly recom-
mend replacing the valve springs with Sure Seat Valve Springs # 5802
(std. retainer set), or for use with valve rotators, #5902.
NOTE: Sure Seat Springs #5902 not applicable to cylinder heads 1977
and later with casting #14014416. These heads must use Edelbrock
spring set #5802.
3. Check spring height and set to factory specifications for correct year
and model.
DUE TO THE MANY POSSIBLE SETTINGS OVER THE YEARS, WE
ADVISE CHECKING MOTORS, CHILTON, OR FACTORY SERVICE MANU-
ALS FOR CORRECT SPRING HEIGHT FOR YOUR VEHICLE.
• LIFTERS
1. New lifters must be used with a new camshaft. Use only the lifters sup-
plied with your kit .
2. Check to make sure all lifters fit freely in lifter bores.
• INSTALLATION INSTRUCTIONS
1. Coat cam lobes and bottom of each lifter with MOS2 lube supplied with
your kit. THIS WILL PREVENT CAM LOBE AND LIFTER WEAR FROM
OCCURRING DURING INITIAL ENGINE START UP.
2. Install new camshaft with new sprockets and timing chain.
CAUTION: When using Performer-Link True Rolling Timing Chain and
Gear Set (#7800 or #7802) with an Edelbrock cam and lifter kit,
straight up timing alignment is achieved. If any other timing gear set is
used, it is necessary to check camshaft 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. Use locking com-
pound material on bolt threads holding gear to cam. Torque to factory
recommendations specified in Motors or other repair manual.
3. Install camshaft with timing marks lined up as recommended by fac-
tory specifications. See Figure 2.
• PUSHROD AND ROCKER ARM INSTALLATION—After the cam is
installed and timed correctly (see Figure 2), install pushrods, lifters and
rocker arms.
• VALVE ADJUSTMENT
1. Turn the engine over until the No. 1 cylinder exhaust lifter starts to
move up. At this point install adjusting nut on intake rocker arm and
adjust to zero clearance between rocker arm and valve. From this point
turn adjusting nut down (clockwise) 1/2 turn more for final adjustment.
2. Turn the engine over again until the intake lifter just stops coming
down. At this point install adjusting nut on exhaust rocker arm and
adjust to zero clearance between rocker arm and valve. From this point
turn adjusting nut down (clockwise) 1/2 turn more for final adjustment.
3. The above procedure assures correct hydraulic lifter preload. Repeat
this procedure for each of the other seven cylinders.
4. Install front timing cover with new gasket.
NOTE: Install new seal between oil pan and front cover if old seal is
damaged after removal. Use RTV silicone sealant on seal to ensure
proper seal to pan.
5. Torque front timing cover bolts to 6-7 ft. lbs.
6. Install front harmonic balancer and torque to 60 ft/lbs.
7. Install fuel pump and pushrod.
8. Install water pump using new gaskets and torque to 30 ft.-lbs.
9. Install intake manifold using new intake gasket set and torque bolts to
25 ft/lbs.
• DISTRIBUTOR INSTALLATION AND ENGINE TIMING
1. Turn the engine over in direction of rotation until the No. 1 intake valve
closes and continue until the pointer on the front cover is approxi-
mately five degrees before top dead center (BTDC). See Figure 1 for fir-
ing order.
2. Re-install the distributor with the rotor pointing towards No. 1 terminal
in the cap, and with the distributor housing in its original position. If
distributor will not drop down all the way to the flange on the manifold,
it will be necessary to align the distributor shaft with the oil pump
drive. Slowly rotate the engine until the distributor drops down against
the manifold, then continue turning until two complete revolutions are
completed and the timing marks once again come to five degrees
BTDC.
3. 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.
4. Replace valve covers, carburetor linkage and remaining vacuum and
electrical connections.
5. Engine oil & filter should be changed before and after break-in.
• CAMSHAFT & LIFTER RUN-IN
IMPORTANT:DO NOT ALLOW THE ENGINE TO RUN UNDER 2000 RPM FOR
THE FIRST 1/2 HOUR. Slow idle speeds may result in severe cam and
lifter wear.
START THE ENGINE AND BRING TO BREAK-IN RPM.
• IMPORTANT NOTES AFFECTING YOUR WARRANTY
CAM LOBE WEAR— Cam lobe wear is almost non-existent unless mis-
matched parts are used or installation of the cam and lifters is done
improperly. Most cam damage is caused by the timing gear loosening
due to improper torque on bolts. Bolts holding gear to camshaft should
be torqued carefully and a locking compound applied to threads of
bolts. Before installing your new Performer-Plus camshaft, check the
gear drive on the distributor and oil pump for any signs of wear. If
worn, be sure to replace with a new gear or you may wear out your
camshaft prematurely. High-volume oil pumps are not recommended
with Performer-Plus camshafts. Edelbrock camshafts are designed to
use O.E.M. type gears only.
©2008 Edelbrock Corp. Rev. 9/08 - AJ/mc
Brochure #63-2103