Help on year without S/N

[DannyJ]

Hey everyone I originally posted this message about a mercury 900 bogging down real bad. Here<br />Well, I am at it again. I will hopefully have the results of a compression test within a couple of days, which I will post as soon as I have. So my question today is: is there any way that I can find out the year of this motor without having the S/N. The last owner stripped and painted the lower unit and forgot to put the tag back on. I have this really bad feeling that everyone is going to tell me I am up a creek, but I have to try and figure it out. I was kind of thinking maybe a part number that I could reference or something along those lines. I have numerous pictures of the motor that I will gladly send out out to anyone that is willing to help. I am sorry this is so lengthy, but appreciate any and all help.<br /><br />One other question. If we had ordered the wrong stator(wrong year), would the motor still start and run?<br /><br />Thanks,<br />Dan

 

[Nos4r2]

Re: Help on year without S/N

Do you not have a s/n on the block?<br /><br />I found out roughly what year my ex-military merc 50 was (the UK military ones have no serial number at all-not even the recessed place on the block for a plug to sit) by buying a generic seloc manual and ID'ing the wiring diagram and components. That was enough to make finding spares possible.

 

[DannyJ]

Re: Help on year without S/N

Nos4r2, The motor is a mid eighties mercury 900 with an inline 6. Where on the block would I find the serial number?<br /><br />Dan

 

[Nos4r2]

Re: Help on year without S/N

Look for a recessed round aluminium disc with numbers stamped on it. It SHOULD be on the front of the motor (as it sits on the boat)between the carbs somewhere.