AQ285 / 285A
- Electromechanical tilt
- Power steering
- 285A has the 290 upper gear unit
Volvo Penta Aquamatic 285
- 1979–1984
Drive specs
| Model years | 1979–1984 |
|---|---|
| Type | Sterndrive (Aquamatic) |
| Drive | AQ225, AQAD30/40 |
| Gear ratios | 1.61:1 |
|---|---|
| Upper gear unit | Upgraded upper unit (as on the 290), power steering as standard. |
| Oil type | Same oil as the engine |
| Oil capacity | 2.6 l |
| Propeller system | Single propeller |
Lower unit variants
| Variant | Gear ratio | Year | Identification | Source |
|---|---|---|---|---|
| 285 / 285A | 1.61:1 | 1979–1984 | Same lower unit as the 280 | Marine Parts Express: Volvo Penta outdrive specifications (oil, capacity, gear ratio) |
Compatible engines
Service points
- Bellows: U-joint bellows, exhaust bellows and shift cable bellows (replace at regular intervals)
- Drive oil: changing it and checking for water in the oil
- Sacrificial anodes on drive and transom assembly
Troubleshooting
Runs rough, stalls or loses power
Cooling and temperature
Electrics, alarms and fault codes
How to identify the drive
The drive has its own plate, separate from the engine's: on the upper gear housing or the transom shield. Saildrive: plate on the gear housing; read the model, product number and serial number.
Compare all drives →Official identification charts
- Volvo Penta SternDrive Models – publication 7738236-4 (12-2006)
Spare parts
| Part | Part number | Note | Source |
|---|---|---|---|
| Exhaust bellows kit | 872531 | Marine Parts Express: The One List 285A | |
| Exhaust bellows kit | 876631 | Marine Parts Express: The One List 285A | |
| U-joint bellows | 853012 | Marine Parts Express: The One List 285A | |
| Transom sacrificial anode, zinc (salt water) | 959438 | Marine Parts Express: The One List 285A | |
| Transom sacrificial anode, zinc (salt water) | 832598 | Marine Parts Express: The One List 285A | |
| Transom sacrificial anode, zinc (salt water) | 873179 | Marine Parts Express: The One List 285A | |
| Sacrificial anode, lower gear housing, zinc (salt water) | 875805 | Marine Parts Express: The One List 285A | |
| Thrust washer/line cutter | 839534 | Marine Parts Express: The One List 285A | |
| Prop cone | 850889 | Marine Parts Express: The One List 285A | |
| Prop cone | 854045 | Marine Parts Express: The One List 285A | |
| Prop cone | 850888 | From a certain serial number | Marine Parts Express: The One List 285A |
| Prop cone | 897367 | Up to a certain serial number | Marine Parts Express: The One List 285A |
| Prop cone | 854047 | Marine Parts Express: The One List 285A | |
| Seal kit, lower unit | 876268 | Marine Parts Express: The One List 285A | |
| Seal kit, upper unit | 876266 | Marine Parts Express: The One List 285A | |
| U-joint bellows/clamps | 853013 | Marine Parts Express: The One List 285A | |
| U-joint bellows/clamps | 876294 | Marine Parts Express: The One List 285A | |
| Drive water hose kit | 875822 | Marine Parts Express: The One List 285A | |
| Propeller, aluminium, short hub | 814626 | Volvo Penta Shop: 814626 aluminium propeller, short hub (200–290, SP) (external link) |
Exploded views & parts catalogs
- ShopMarine Parts Express – exploded views, Volvo Penta diesel
Parts shared with
Listings for Aquamatic 285
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Related models
Service guides
Sources
- The Volvo Penta marine engine site: Aquamatic sterndrives (external link)
- Carolina Classic Boat Owners: Volvo Penta sterndrive model history (external link)
- WSM: Clymer service manual Volvo Penta 1968–1993 (engine list and fit) (external link)
- Marine Parts Express: Volvo Penta outdrive specifications (oil, capacity, gear ratio)
- Volvo Penta – marine engines (external link)
- Volvo Penta – instruction manual (history: marine engines since 1907) (external link)
- Wikipedia: Volvo Penta (en) (external link)
- Wikipedia: Volvo Penta (sv) (external link)
- Marine Parts Express: The One List 285A
- Volvo Penta Shop: 814626 aluminium propeller, short hub (200–290, SP) (external link)
- Sawley's (Volvo Penta dealer): Sterndrive Identification Chart (external link)