Intake Manifold Collector

INTAKE MANIFOLD COLLECTOR





Removal and Installation

REMOVAL

WARNING:
^ To avoid the danger of being scalded, never drain the coolant when the engine is hot.
^ Gasket for intake manifold collector (upper) is secured together with mounting bolt for intake manifold collector (lower). Thus, even when only gasket for upper side is replaced, gasket for lower side must be also replaced.





1. Remove engine cover with power tool.
2. Drain engine coolant from radiator drain plug, or when water hose is disconnected, attach plug to prevent coolant leakage.

CAUTION: Perform when engine is cold.

3. Remove air cleaner case and air duct.
4. Remove electric throttle control actuator.





^ Loosen bolts in the reverse order of that shown in the figure.

CAUTION:
^ Handle carefully to avoid any shock to the electric throttle control actuator.
^ Do not disassemble.

5. Remove fuel sub-tube mounting bolt to disconnect from rear of intake manifold collector (lower).
6. Disconnect vacuum hose and water hose from intake manifold collector.
7. Disconnect EVAP canister purge volume control solenoid valve bracket mounting bolt from intake manifold collector.





8. Loosen bolts in reverse order of illustration to remove intake manifold collector (upper) with power tool.
9. Remove PCV hose (between intake manifold collector and RH rocker cover).





10. Loosen bolts in reverse order of illustration, and remove the intake manifold collector cover, gasket, intake manifold collector (lower) and gasket with power tool.

INSPECTION AFTER REMOVAL
Surface Distortion





^ Using straightedge and feeler gauge, inspect the surface distortion of both the intake manifold collector (upper) and (lower).
Limit: 0.1 mm (0.004 inch)

INSTALLATION
^ Install in the reverse order of removal paying attention to the following.

Indication of Part Installation Direction





^ Referring to front marks, install parts shown in figure.

Installation of Intake Manifold Collector (Lower)





^ Tighten in numerical order as shown in the figure.

NOTE: Tighten mounting bolts to secure gasket (lower), intake manifold collector (lower), gasket (upper), and intake manifold collector cover.

Installation of Intake Manifold Collector (Upper)
^ If stud bolts were removed, install them and tighten to the torque specified below.
: 4.9 - 6.9 Nm (0.5 - 0.7 kg-m, 44 - 61 inch lbs.)





^ Shank length under bolt head varies with bolt location. Install bolts while referring to numbers shown below and in figure. (Bolt length does not include pilot portion.)
M6 Nut: 12, 17
M6 x 25 mm (0.98 inch): 7, 8, 10, 11, 13, 14, 15, 16, 18
M6 x 45 mm (1.77 inch): 2, 4, 5
M6 x 60 mm (2.36 inch): 1, 3, 6, 9





^ Tighten in numerical order as shown in the figure.

Installation of Water Hose
^ Insert hose by 27 to 32 mm (1.06 to 1.26 inch) from connector end.
^ Clamp hose at location of 3 to 7 mm (0.12 to 0.28 inch) from hose end.

Installation of Electric Throttle Control Actuator
^ Install gasket with three protrusions for installation check facing any direction other than upward.
^ Tighten in numerical order as shown in the figure.
^ Perform the "Throttle Valve Closed Position Learning" when harness connector of the electric throttle control actuator is disconnected.
^ Perform the "Idle Air Volume Learning" and "Throttle Valve Closed Position Learning" when the electric throttle control actuator is replaced.