Merc 40 or 402-what's the difference???

[Dmzhmdepo]

Hi everyone,<br />Am installing my lower unit and my Clymer manual keeps referencing a 40 / 402. Some settings are critical depending on which. My wrap-around cowl has a 402 on the back, but the smaller cowl arounc the drive-case says 40hp. Am not sure which I do have. Help anybody? Thanx!!!!

 

[DJ]

Re: Merc 40 or 402-what's the difference???

The 402 is a 40 hp. The "2" in 402 meant 2-cylinder.

 

[Dmzhmdepo]

Re: Merc 40 or 402-what's the difference???

Thanks djohns,<br /><br />My initial guess was your explanation. But my manual is confusing because it will give spec's for both a "40" and a "402" like they are different.... Thanx again.<br /><br />DMZ.

 

[12Footer]

Re: Merc 40 or 402-what's the difference???

The Clymer manual, right DMZ? If so, I hope you don't have carb problems MAN that manual stinkz on the carb blowups.

 

[skier]

Re: Merc 40 or 402-what's the difference???

The 402 is the older model number the 40 is the newer model number. Example, In the 1970's it was a Merc 1150, in the 80's it was a Merc 115. Same basic motor. Go with the number on the top cowling.