Engine Info?

[Boston Cowboy]

I just purchased a 1989 Fiesta Vee 250. I would like to find out exactly which engine I have as I have taken all kinds of information from the engine itself but can't believe how hard it has been to find it online, even on this site.

This is the info I have:
Model: MCM 5.7L
Disp 360 CID
HP 260
The cover says it is a Mercrusier Alpha One w/ Thunderbolt Ignition & Power Steering

It has an air filter FACET A175-64.
The drive serial #s are OC630506 & OC590799.
Of course, the Motor Serial # is unreadable. The previous owner put clear tape over it, I'm assuming to keep it legible, however, it melted (imagine that), got covered in grime (ditto), & won't peel off.

I need to do a tuneup on this so I need to know the oil specs, PCV valve type, carburetor model, etc.

I appreciate any help you can give me.

 

[Bondo]

Re: Engine Info?

I just purchased a 1989 Fiesta Vee 250. I would like to find out exactly which engine I have as I have taken all kinds of information from the engine itself but can't believe how hard it has been to find it online, even on this site.

This is the info I have:
Model: MCM 5.7L
Disp 360 CID
HP 260
The cover says it is a Mercrusier Alpha One w/ Thunderbolt Ignition & Power Steering

It has an air filter FACET A175-64.
The drive serial #s are OC630506 & OC590799.
Of course, the Motor Serial # is unreadable. The previous owner put clear tape over it, I'm assuming to keep it legible, however, it melted (imagine that), got covered in grime (ditto), & won't peel off.

I need to do a tuneup on this so I need to know the oil specs, PCV valve type, carburetor model, etc.

I appreciate any help you can give me.

Ayuh,.... Welcome Aboard,.... You've got a 350 Chevy based motor,....

AC Delco, MR43T are the spark plugs,...
The ignition is Merc's T-Bolt IV, so ya need the cap, rotor, 'n wires for that,...
There is no air Cleaner, nor PCV valves,... just a Flame Arrester, 'n open elbow vents,...
You can run 'bout Any oil ya want, I run 15W-40 Rotella T....

'n the Carb is a 4 bbl., probably a Qudra-jet,....
Or possibly the newer Merc/ Weber, Carter clone, which is a carbon copy of the Edlebrock 1409 carb,....

At the top of this forum is Don'S Adults Only section, it's packed Full of Great info, includin' links to the factory manuals,...
Have a look 'round,...

 

[achris]

Re: Engine Info?

The drive serial number matches the year of the boat (so it's likely the engine will too). That makes the drive an 'Alpha One'... Here are links to service-manuals to help you...

ENGINE MANUAL
DRIVE MANUAL

Download and save them....

There is another serial number location on the engine, (which would be a good thing to have)... Look for it HERE.

Chris.....