How to Change Lower Unit Gear Lube in a Mercury Outboard
Proper maintenance of your Mercury outboard motor is essential for its efficient and reliable performance. One crucial aspect of this upkeep is changing the lower unit gear lube. This process ensures that the internal components of the motor remain well-lubricated while removing any normal wear shavings that may accumulate in the oil. Additionally, inspecting the gear lube during this process can provide valuable insights into the condition of your motor’s internal parts.
Why Gear Lube Changes Are Important
- Lubrication: Ensures smooth operation of internal components.
- Wear Monitoring: Helps remove metal shavings that occur with normal usage.
- Early Detection: Observing the condition of the oil can indicate potential issues with internal parts.
Video demonstration of Different Gear Lube Change
Comprehensive video guides for gear lube changes on Mercury outboards of 20-40 Hp and 40-300 Hp.
Gear Lube Change 20-40 Hp
APPLICABLE ENGINES:
FourStroke: I-2 333cc 15hp and 20hp
ProKicker: I-2 333cc 15hp
Gear Lube Change 40- 300 HP
Verado: V-8 4.6L 250hp AMS and 300hp AMS
FourStroke: I-3 747cc 40hp; I-4 995cc 40hp CT, 50hp, 50hp CT, 60hp, 60hp CT; I-4 2.1L 75hp, 90hp, 90hp CT, 115hp and 115hp CT; I-4 3.0L 150hp; V-8 4.6L 250hp and 300hp; V-6 3.4L 175hp, 200hp and 225hp
Pro XS: I-4 2.1L 115hp and 115hp CT; I-4 3.0L 150hp; V-8 4.6L 200hp, 225hp, 250hp and 300hp; V-6 3.4L 175hp
Performing regular lower unit lube changes not only extends the lifespan of your outboard motor but also provides peace of mind when you’re out on the water.