Engine Identification

[Procastinator]

Acquired a 68' Starcraft Imperial V I/O. Contols say MerCruiser. Instrument panel says Mercruiser Marine. I'm wondering how to identify the engine?

I'm knew to the site and find it amazingly informative. How do I find the Starcraft forum?

Mike

 

[Procastinator]

Another question is how do I winterize my I/O?

 

[Fun Times]

How do I find the Starcraft forum?

Hi, welcome to iboats, Here is a direct link to the very active Starcraft Boats for you.

If possible, finding an engine serial number and any horsepower rated numberings plus any stern drive and transom assembly type serial numbers both inside or outside of the boat might help narrow down the search for you. SERIAL NUMBER LOCATION

The Engine Serial number is located near the
starter at the Flywheel housing, the Rocker
Arm or Flame Arrestor Cover.

The Sterndrive Serial number is located on
the Upper Driveshaft housing Starboard side
or on the Back of the housing.

The Transom Serial number is located on the
Upper part of the Transom Assembly

 

[Alumarine]

Here's some more info.
http://forums.iboats.com/forum/engi...es-outdrives/295720-adults-only-no-exceptions

 

[Procastinator]

Thank you.

 

[achris]

Post up a photo or two of the engine....

Chris......

 

[Procastinator]

Thank you.

 

[Procastinator]

Thank you.

What is the difference between a marine I/O and what I might find in a car? Seems to me That they might be compatible. I still need to winterize the engine. Any one with knowledge of doing so for cold climates. I'm in the snow capital of NY.

MIke

 

[thumpar]

Boat engines are more like truck motors internally. Externally there is a lot of safety precautions like alternator, starter, fuel pump. The distibutor will have weights instead of vacuum advance. The core plugs will be copper not steel.

On that motor someone has messed with the fuel/carb. There should be a hard metal like to the carb from the pump with no filter and also a clear line to the carb for the telltale. The breather should have a 90 degree elbow and hose that goes into the carb. You should probably check that other things are marine rated also.

 

[Bondo]

What is the difference between a marine I/O and what I might find in a car? Seems to me That they might be compatible. I still need to winterize the engine. Any one with knowledge of doing so for cold climates. I'm in the snow capital of NY.

Ayuh,.... Watertown, or Buffalo,..??

That's a Chevy 250 I-6, the difference 'tween it, 'n an automotive block is some automotive blocks don't have the extra ear on the front starboard corner for the front motor mount,...

To winterize the motor, there's a block drain, portside, down low nearer the back that ya remove, 'n poke with a screw or nail to drain the block,...
Just above it, on the bottom of the manifold is another drain plug to drain the manifold just like the block,....
Then pull the Big hose off the circulatin' water pump to drain it,....
At that point, the motor is ready for any temps you'll see,...

 

[TyeeMan]

For winterizing when I know it's going to be one of the last few trips out I like to start running nonoxygenated fuel so there is no alcahol in the fuel, and treat it with a fuel stabilizer. If you can't get non- oxy fuel don't worry about it, just make sure you have fuel stabilizer in the fuel.

Change engine oil and filter, change drive oil, grease all grease fittings. Some folks say to fill the fuel tank some don't. I never do as I want as little in the tank as possible so I can start the season with fresh fuel.

MOST IMPORTANTLY - you will need to drain the water from the block and manifold. My guess is on your engine the block drain will be on the side of the block opposite that of the distributor and starter side of the engine. The drain will be down low on the block usually just above the point where the oil pan meets the block, , it might be a brass type plug.
The exhaust manifold drain will be on the bottom of the exhaust manifold, more often than not it resembles a pipe type plug. It will either be removed with a hex wrench or or a square ratchet drive. Just look for plugs that have black paint chipped off, , those are usually the drains.

Some people will also take the water supply hose (water supply from the out drive to the circulating pump) off to make sure any water is fully drained out of the circulating pump, etc.

I leave the all drain plugs out for the winter and store them in a small zip lock or other container and I place them where they are easily seen, on the dash or something like that.

 

[Procastinator]

Thank you. Great advice.