GMC SYCLONE 1992 Service Manual Supplement page 86

6A3-4 4.3 LITER V6
12. Fuel injector electrical connectors.
Fuel pipes (23 and 27) at fuel rail (21).
13.
14. Fuel rail (21) and injectors (29) by removing bolts (28).
15. A/C compressor rear brace.
16. Turbocharger coolant return line.
17. Upper radiator hose from lower intake manifold.
18. Ground strap from lower intake manifold (22).
19. Coolant sensor electrical connector.
20. Spark plug wires from distributor.
21. Distributor cap.
22. Distributor. Refer to IGNITION SYSTEM (SEC. 6D4)
in this manual.
23. Lower intake manifold bolts and studs.
24. Lower intake manifold (22) and gaskets.
7. Cable 21. Fuel Rail
Bracket 22. Lower
10. Upper Intake
Manifold
19. Bolt
20. Gasket
Figure 4 - Intake Manifolds
Clean
• Gasket and sealant surfaces on upper and lower
intake manifolds (10 and 22), throttle body (15) and
cylinder block.
EGR and coolant passages if necessary.
•
Install or Connect (Figures 1 through 6)
NOTICE: For steps 3, 12, 13, 18 and 19 see
"Notice" on page 6A3-1 of this section.
1. Gaskets on cylinder heads with port blocking plates
facing the rear.
Intake
Manifold
V1508
• Apply a 5 mm (3/16 inch) bead of RTV sealer, GM part
number 1052366 or equivalent, to the front and rear
of the cylinder block. Extend the bead 13 mm (1/2 inch)
up each cylinder head to seal and retain the gaskets.
2. Lower intake manifold (22).
3. Lower intake manifold bolts and studs.
Tighten
• Lower intake manifold bolts and studs to 47 N•m
(35 ft. Ibs.).
4. Distributor. Refer to IGNITION SYSTEM (SEC. 6D4)
in this manual.
5. Distributor cap.
6. Spark plug wires to distributor.
7. Coolant sensor electrical connector.
8. Ground strap.
9. Upper radiator hose.
10. Turbocharger coolant return line.
11. A/C compressor rear brace.
12. Fuel rail (21) and injectors (29) with bolts (28).
13. Fuel pipes (23 and 27) to fuel rail (21).
Tighten
• Fuel rail bolts (28) to 6.5 N•m (58 in. Ibs.).
• Fuel pipe fittings to 22 N•m (16 ft. lbs.).
14. Fuel injector electrical connectors.
15. Charge air cooler coolant inlet pipe (5) into position on
lower intake manifold (22).
16. Hose and clamp from radiator to charge air cooler
coolant inlet pipe (5).
17. Heater hose to lower intake manifold (22).
18. Upper intake manifold (10), gasket (20) and bolts (19).
Tighten
• Upper intake manifold bolts (19) from the two
middle bolts outward on each side to 23 N•m (17
ft. Ibs.).
19. Throttle body (15), gasket (16), bolts (18) and cable
bracket (7) to upper intake manifold (10).
Tighten
•
Throttle body bolts (18) to 23 N•m (17 ft. lbs.).
20. Upper intake manifold electrical connectors and
hoses.
21. Multi-use bracket (4).
22. Electrical connections and hoses to EVRV solenoid
(12), ignition coil and MAP sensor (11).
23. Charge air cooler lateral support with nut, finger tight.
24. Charge air cooler to supports.
• Tighten charge air cooler lateral support nut.
25. Charge air cooler hoses, ducts and clamps.
26. Negative (-) battery cable.
• Refill charge air cooler and radiator. Refer to TURBO-
CHARGER (SEC. 6J) in this manual.
• Refill engine radiator.