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PLEASE study these instructions carefully before installing your new Tubular Exhaust System (TES). If you have any questions or problems, do not
hesitate to contact our Technical Hotline at : 1-800-416-8628.
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TUBULAR EXHAUST SYSTEM: These components are designed as a system to improve the exhaust efficiency of the GM T.P. I. (tuned port injection)
V8 engine. A performance gain can be expected by the installation of the system. This system does require welding for installation and retains
all O.E.M. emissions equipment.
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SUGGESTED TOOLS FOR INSTALLATION: This vehicle has some metric fasteners
— MIG welder (recommended) or gas welder. Professional welding is highly recommended.
— 3/8" ratchet socket set with extensions and universal 13mm and 15mm swivel socketsI
— Combination set of open-end wrenches
— Jackstands, screwdrivers, pliers, crescent wrench, hacksaw, etc.
— Liquid penetrant, (GM #1052627) anti-seize compound (GM #5613695)
— Spark plug wire crimping tool
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SPECIAL NOTICE: This Edelbrock part has received an Executive Order number (E.O. #) from the California Air Resources Board (C.A.R.B.) making
it legal for street use on pollution-controlled motor vehicles in all 50 states. To assist you with emissions equipment certification, we have included
a silver fan shroud decal to verify that this part is a legal replacement part on the vehicle for which it is cataloged. The adhesive-backed decal
should be affixed to your fan shroud next to the existing emission and engine specification decal. Do not cover your original equipment specification
decal with the Edelbrock fan shroud decal.
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WARNING: The use of "Thermal Wrap" or any aftermarket coating process will void the warranty on your Tubular Exhaust System. Those products
can cause excessive heat and moisture buildup resulting in corrosion and early failure of the system.
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NOTES: The paint used on non-coated T.E.S. is for protection during shipping and storage and will burn off soon after the engine is started. Those
who desire a longer lasting finish should sand blast the T.E.S. to remove the original paint, then apply high temperature header paint, such as VHT,
available at most auto parts stores.
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When cleaning any Edelbrock Pro-Tech coated TES, use only soap and warm water. The use of caustic solvents (Gunk, etc.) will mar or damage
the Pro-Tech coating.
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High temperature spark plug wires and boots are recommended to withstand heat from T.E.S.
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DISASSEMBLY
1.
Disconnect negative cable from battery.
2.
Raise vehicle and support with jackstands.
3.
Use penetrating oil on all nuts and bolts to be removed. This will
prevent the possibility of broken or stripped nuts and bolts.
4.
Making sure converters are cool, remove the exhaust pipe and
catalytic converter assembly. NOTE: The small A.I.R. tube connection
should be a slip joint, however, the factory clamp is usually over-
tightened until is crushes the joint. If yours is stubborn, apply heat
from a torch to help loosen it.
5.
Lower vehicle to the ground.
Clamp in vice, then bend flats approximately 10°
Figure 1—Right side A/C support rod- top view
© 1997 Edelbrock Corp.
®
page 1
TUBULAR EXHAUST SYSTEM
1989-1992 Camaro & Firebird 305 &350 c.i.d.V8
T.P.I. auto & standard transmission (dual converters)
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DISASSEMBLY LEFT SIDE
1.
Remove air cleaner system (note position of line and hose
connections).
2.
Disconnect A.I.R. (air injection reactor) hose from exhaust manifold.
3.
Remove air conditioner compressor rear support bracket. If air
conditioning compressor is mounted on right side of engine, this
bracket will require bending in a vice before re-installation (see
Figure 1).
4.
Remove power steering pump support bracket (if power steering is
applicable).
5.
Disconnect spark plug wires and remove spark plugs.
6.
Remove 0 2 sensor, being careful not to rupture or destroy the unit.
WARNING: Do not clean this unit in any cleaning solvents and do not
rupture wire.
7.
Disconnect temperature sensor wire at cylinder head.
8.
Remove temperature sensor wire support bracket from valve cover
bolt and lay wire back over engine.
9.
Remove bolts and exhaust manifold from top side.
10. Disconnect steering column connector and lower slip tube down to
steering box. CAUTION: Do not turn steering wheel or front wheels
while this system is disconnected. USE EXTREME CAUTION IF
VEHICLE IS EQUIPPED WITH AIR BAG!
CATALOG #6876/7976
INSTRUCTIONS
REV 8/97
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Summary of Contents for Edelbrock 6876
- Page 1 T.E.S. to remove the original paint, then apply high temperature header paint, such as VHT, available at most auto parts stores. • When cleaning any Edelbrock Pro-Tech coated TES, use only soap and warm water. The use of caustic solvents (Gunk, etc.) will mar or damage the Pro-Tech coating. •...
- Page 2 • DISASSEMBLY RIGHT SIDE Disconnect A.I.R. injection hose from exhaust manifold and catalytic converter tube. Disconnect electrical connector and vacuum hoses from A.I.R. diverter valve assembly (note position of hose and electrical connections). Remove A.I.R. pump feed hose from diverter valve assembly. Remove nut from diverter valve support bracket at exhaust manifold and loosen lower alternator pivot bolt, then remove diverter valve assembly.
- Page 3 Figure 3 Right Side Small Umpco clamp 10-32 Capscrew, nut, and washer Figure 2 Left Side 1.530" spacers - use if air conditioning compressor is mounted on left side of engine End of bend Cut 1-1/2" from bend A.I.R. slip connection Large Umpco clamp 720"...
- Page 4 Figure 4a After marking pipe to be cut, clamp securely, then cut with hacksaw Figure 4b Top view of cutting procedure Figure 5 Align extension pipe with T.E.S. manifold so that an even amount of the donut gasket is visible all the way around the flare before tightening bolts.