Daihatsu F300 Service Manual page 1359

EMISSION CONTROL SYSTEM
INSPECTION OF BVSV
Checking of BVSV by blowing air into pipe
1. Drain the coolant from the radiator into a suitable container.
2. Remove the BVSV.
3. Cool the BVSV to below 45°C
4. Ensure that no air continuity exists. If air continuity exists,
replace the BVSV.
5. Heat the BVSV to above 66°C, using hot water.
6. Ensure that air continuity exists.
If no air continuity exists, replace the BVSV.
7. Apply liquid sealer to the threaded portion of the BVSV.
Reinstall the BVSV.
Tightening Torque: 24.5- 34.3 N·m (2.5- 3.5 kgf-m)
8. Fill the coolant to the radiator.
(See page C0-12.)
9. Start the engine. Check the coolant level.
If the coolant level is low, add the coolant.
10. Check the water leakage and/or air leakage.
EC-20
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