Final Gear Case Breather Circuit; Air And Gear Oil Flow In Final Gear Case; Breather Circuit - Suzuki Madura GV700GL Service Manual

4-21 SHAFT
DRIVE
FINAL GEAR CASE BREATHER CIRCUIT
AIR AND GEAR OIL FLOW IN FINAL GEAR CASE BREATHER CIRCUIT
BREATHER CIRCUIT
The GV700GL final gear case breather circuit (pas-
sage) consists of the final gear case and final gear
bearing case. Air/oil mixed gas, flows through the
following routes.
AIR PASSAGE
Breather
When the air pressure in the final gear case becomes higher than atmospheric pressure, both air and oil
flow in the following passages.
• Air flows from hole (A) to chamber (B) and passes through the hole (C) and chamber (D) to the atmos-
phere through the breather hole (E).
OIL PASSAGE
When the final gear case pressure rises abruptly or when the gear case oil level changes during cornering,
the gear oil may sometime flow out into the air passage.
• In this case, the gear oil which has traveled into hole (A) goes into chamber (B), where the oil is separa-
ted from the air.
• The air flows through the hole (C) and chamber (D), and goes out through the breather.
• The gear oil, however, flows through the passage (F) and returns to the gear case from gear oil return
port (G).