Cant ID my motor...Can anyone help?

[jamieschillin]

I have a MCM 165, serial # B578236 and can’t find a listing or parts for it any where? Can you all help? What kind of motor is it? Parts list? etc! I need valve cover gasket, bolts for valve cover and a set of plugs! Ty ahead of time
Jamie

 

[GA_Boater]

You have a Mercruiser 370. The spark plugs are on the sticker pictured and this is the parts list for the Valve Cover and bolts - http://www.iboats.com/Cylinder-Head...858712--session_id.844533192--view_id.1682157

 

[biggjimm]

Isn't that mercruiser's ugly stepchild that uses the 460 Ford head?

Bolts should be 1/4-20 x 3/4" sourced at any hardware store. Even Walmart & Meijer carry common fasteners nowadays.

You could probably get a pair of fel-pro gaskets at auto parts store for far less than oem & have a spare even.

How do you like that engine? I've heard nothing but horror stories about them but have never owned one to know for myself.
Good luck
Jim.

 

[Bt Doctur]

Properly serviced and maintained there good motors, some quirks but good motors.. charging system issues and cam seals leaking

 

[jamieschillin]

Jim, I haven?t had it in the water as of yet! Thank you for the info!
I don?t know why I asked for spark plug numbers because I already have them doh!
Thank you GA and Bt...

 

[biggjimm]

Well hopefully as BT commented yours has been properly serviced & maintained & you'll be able to enjoy your boat rather than work on it.

I picked up a project boat mid summer that I've been fixing up & I told a buddy the other day it reminds me of my drag racing days. Go play on the weekend & then work on it all week long. Lol.

 

[nola mike]

GA_Boater meant that it's a 470 (not 370). Or maybe he meant that it's 3.7L. Various names for it throughout the years. Some of us like 'em. Mercruiser aluminum block with a Ford big block head. Plenty of help available on the forums if you need it...

 

[jamieschillin]

GA_Boater meant that it's a 470 (not 370). Or maybe he meant that it's 3.7L. Various names for it throughout the years. Some of us like 'em. Mercruiser aluminum block with a Ford big block head. Plenty of help available on the forums if you need it...

I knew something was up when I couldnt find anything on a 370...No worries! We are whipping now. So if I have some problems with this motor is it better to rebuild it or replace it? In your opinion?

 

[nola mike]

I'd probably replace it (v. a full rebuild) with a 4.3L, but why do you think that needs to be done?

 

[jamieschillin]

I dont as of yet...I need to do some testing...Boat hasn't run in a year...fuel tank was disconnected to redo floor...will put everything back but try motor first!

 

[Bondo]

I dont as of yet...I need to do some testing...Boat hasn't run in a year...fuel tank was disconnected to redo floor...will put everything back but try motor first!

Ayuh,..... Don't hook it back up till ya Clean the inside of the tank,.....

Hook up a remote tank of fresh gas right to the fuel pump or fuel filter for Testin' purposes,....

 

[jamieschillin]

Gotcha Bondo TY!!!