What kind of MerCruiser engine do I have?
The model of Mercruiser engine can be determined by looking at the last letters of the “engine block code” that is stamped in all complete longblocks by General Motors at the time of assembly. If the serial number, and/or model decals are missing, the engine code will help to determine the engine model.
How do you read a MerCruiser serial number?
Mercruiser sterndrive engine serial numbers are formatted as follows—0W555555. The first character is the number 0, not the capital letter O. Serial numbers that do not follow this format, rather have seven numerical digits, were manufactured before 1980.
How do I know what boat engine I have?
You will find your boat engine serial number and model number on the transom mount of the engine.
- For Evinrude/Johnson, look to the left of the mount.
- For Mercury, Mariner and Force, look on the right side of the motor on the transom mount.
How do I find out what year my Mercury inboard motor is?
Every Mercury outboard has a serial number label located on the transom bracket area of the engine. The latest serial number labels display a 2-digit number in a box at the lower right portion of the label. These digits coincide with the last two digits of the year in which the outboard was manufactured.
How do I identify my MerCruiser sterndrive?
Transom plates: The serial number tag is located on the inner transom plate inside the boat; or, on the upper swivel pin. Sterndrive Serial Number (separate from engine): The serial number tag is located on the upper drive shaft housing (starboard side or on the back of the housing).
Where is my boat motor serial number?
On the side of your motor you’ll find a plate. This tells you the make, model and serial number. You’ll only need the serial number if it’s an outboard motor.
Where do you find a boat motor serial number?
Transom Plates: The serial number tag is located on the inner transon plate inside the boat; or, on the upper swivel pin. Outboard motors, have serial numbers assigned to them after production.
Does an inboard motor have a serial number?
The serial number tag is located near the starter, by the flywheel housing; or, on the rocker arm or flame arrestor cover. If the boat was registered correctly and is an Inboard or I/O drive, the registration will also include your motor serial number and drive serial number.
What is the difference between MerCruiser Alpha 1 and Gen 2?
The Alpha Gen II upper and lower housings are fastened together with two through bolts on either side of the drive along with the front and rear bolts, while the Gen 1 drives use one stud visible on either side. Alpha Ones have two studs under the ventilation plate just above the prop.
How to tell the model of a MerCruiser marine engine?
The specific model/vintage of Mercruiser Marine Engines can be determined by looking at the last letters of the engine code which is stamped in all complete Marine Longblocks by General Motors at the time of assembly. If the serial number and/or model decals are missing, the Marine Engine code will help to determine the engine model.
Where is the serial number on a MerCruiser?
Locating MerCruiser Serial Number Tags. Engine Serial Number: The serial number tag is located near the starter, by the flywheel housing; or, on the rocker arm or flame arrestor cover. Transom Plates: The serial number tag is located on the inner transon plate inside the boat; or, on the upper swivel pin.
Where are the valve covers installed on a MerCruiser?
See MerCruiser Service Bulletin # 97-1 for proper torque procedures and specification. B. The valve cover bolts are installedl in the center of the head. C. Crankshafts utilize a 1-piece rear-main seal. D. Timing covers are plastic. E. Engines are fit with electric fuel pumps.
