Not sure on the year mercury 40hp

[anderso8623]

Hi Guys!

Just picked up a charmer, 16 ft StarCraft with an unknown mercury 40hp. The serial number is 3407902. I looked it up on a few sites but they all came back as not recognized. My main goal right now is to get the model number for impeller replacement kits. I'll post pics next

thanks in advance,

Jason

 

[carholme]

Re: Not sure on the year mercury 40hp

Jason;

That s/n comes up as:

40 1972 EL 3336258 - 3474577 3340783 It is a model 402

From here:

MERCURY OUTBOARD MODEL YEAR GUIDE 30 - 40 HP (2-CYL) -- Mastertech Marine

Parts List:

MERC 402 - Mercury, Mercruiser, Force, etc. Parts Lookup


Gerry

 

[MH Hawker]

Re: Not sure on the year mercury 40hp

The 402 is a good motor, I ran one for several years.

 

[anderso8623]

Re: Not sure on the year mercury 40hp

thanks for the info, good to hear it is a good motor! Last question. How do I get the top off? I have a couple things to tinker with and don't want to screw up anything.

 

[jonnyreb1968]

Re: Not sure on the year mercury 40hp

I have a 1997 merc 40 hp 2 stroke amd need to know where exactly to hook the os and neg cables from the battery. Anu help would be nice.

 

[anderso8623]

Re: Not sure on the year mercury 40hp

I have a 1997 merc 40 hp 2 stroke amd need to know where exactly to hook the os and neg cables from the battery. Anu help would be nice.

You should have an electrical harness that plugs into the motor.

 

[MH Hawker]

Re: Not sure on the year mercury 40hp

the cowl comes off in sections
it starts with the badge cover in the front it has a release at the bottom, then a wrap around cover then the top,

 

[anderso8623]

Re: Not sure on the year mercury 40hp

Motors off the boat put in on a stand and from a new angle found the bolts to get the top off. All-in-all a clean motor. new starter and coils. I have to replace a few wires and that's about it under the hood.

pulled the LU off...I have never had a LU com off that easy in my life! new pump assembly just needs an impeller.

 

[oldman570]

Re: Not sure on the year mercury 40hp

Johnyreb1968; You should have started a new thread for your question. The + battery cable should go to a post on the solenoid and the Neg. cable to a bolt on the starter mounting bracket on most motors. JMO

Anderson8623; Good that your getting things fixed as needed. The 402 are good motors and will last for some time as long as the maintance is done and they are taken care of. The fuel lines might need some repair if they have not been replaced as will the carb. The ethanol fuel tends to mess up the old rubber lines, fuel pumps, and carb rubber gaskets when used. JMO
Oldman570