- Loosen the sleeve nut which mounts the silencer to the top of the air suction
valve.
- Pull the silencer from the hose connecting it to the air cleaner.
NOTE: Be careful not to lose the small tapered sleeve below
the sleeve nut when lifting off the silencer.
- Installation is the reverse of removal.
On late model EA71 and EA81 engines, the air flowing to the air suction valve
passes through a secondary air cleaner instead of the carburetor air cleaner
and silencer. Do not attempt to clean the filter element. Replace the cleaner
element every 30 months or 30,000 miles (48,000 km), whichever occurs first.
| Fig. 1: Air suction system with a secondary air cleaner
|
- Remove the air silencer or secondary air cleaner.
- Remove the four bolts which run through the air suction valve, mounting
it between the two air suction manifolds.
- Pull the suction valve from between the manifolds. Take care not to damage
the reeds.
NOTE: If the gaskets on the sides of the air suction valve
are worn or damaged, replace them.
- Remove the air silencer or secondary air cleaner and the air suction valve.
- Remove the clamp which supports the right side suction manifold by loosening
the mounting bolt.
- Loosen the threaded sleeves (two on each manifold) which mount the suction
manifolds to the engine. Lift off the manifolds.
- Remember to lightly oil the threaded sleeves before mounting the suction
manifold to the engine.
| Fig. 2: Solenoid valve for the 1982–84 air
suction systems. See text for a description of which passages (A,
B, C) are open under various conditions
|
