Mazda CX-5 Service & Repair Manual: Exhaust Manifold
Purpose, Function
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By lengthening the exhaust passage, the transmission of exhaust pressure waves to other cylinders can be delayed, and the amount of gas exhausted from a cylinder and forced back inside the combustion chamber is reduced By reducing the residual gas, the temperature inside the combustion chamber is reduced and the occurrence of knocking even at a high compression ratio is inhibited.
Construction
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The exhaust manifold is installed to the rear of the engine. In addition, the catalytic converter (WU-TWC) is integrated (WU-TWC).
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When the No.1 cylinder is at the intake stroke, the No.3 cylinder is at the exhaust stroke. By inducing the high temperature gas exhausted from the No.3 cylinder into the No.1 cylinder, the high temperature gas in the No.1 cylinder remains. If the amount of residual gas is high, the temperature in the combustion chamber rises and knocking can easily occur. With the 4-2-1 exhaust system, the transmission of exhaust pressure waves between each cylinder is delayed by the long exhaust pipes.
Exhaust System Removal/Installation
WARNING:
A hot engine and exhaust system can cause severe burns. Turn off the engine
and wait until they are cool before removing the exhaust system.
2WD
1. Disconnect the negative b ...
Other materials:
Winter Driving
Carry emergency gear, including tire chains, window scraper, flares, a small
shovel, jumper cables, and a small bag of sand or salt.
Ask an Authorized Mazda Dealer to perform the following precautions: l Have the
proper ratio of antifreeze in the radiator.
• Inspect the battery and its cable ...
Antenna Feeder No.1 Inspection
With audio system
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. A-pillar trim (RH).
b. Decoration panel.
c. Audio unit.
3. Disconnect antenna feeder No.2.
4. Verify that the continuity between antenna feeder No.1 terminals is as indicated
in the tabl ...
Rear Drive Shaft Inspection
1. Inspect each connecting part for looseness.
Tighten or replace parts if necessary.
2. Inspect the dust boot on the drive shaft for cracks, damage, leaking grease,
and looseness in the boot band.
3. Inspect the drive shaft for bends, cracks, and wear in the joints or splines. ...
