1983 mercury v6 150 hp

Joined
Aug 30, 2008
Messages
20
Hello all, i got an incredible deal yesterday from a guy who wanted to get some mercury motors out of his moms backyard that he had bought as projects. a 1983 mercury v6 150 hp ( that he thought was a 1977) that was missing the flywheel but had the controls and power trim setup,no other info, a 1961 merc 400 that " missed and only would run with the choke on" and a 1971 mercury 500 that "sank with his boat the first day out". i got the 150 in hopes that it would be rebuildable to replace my 1976 v1750 that has 3 holes in the block (different story, look it up in here) bought it for $75 and he through in the other 2 for free! I didnt think the cylinders would be good on the 150 but for $75 it was worth the risk:rolleyes: i put my 175's flywheel on it, took the heads off and checked the cylinders... 1,2,5,6 were great still had cross hatchings, 3 and 4 had minor scratches but what worries me it that on 3 they are at the 3 oclock position looking down the cylinder and on 4 they are at the 9 oclock position. is this something to worry about or is it normal wear. the shaft turns easily enough. doesnt seem to be bent or anything. havent checked compression yet (need to build me a stand for it) but spinning the flywheel gives me the swoosh sound when pistions clear the ports. what do you guys think?
 
Joined
Aug 30, 2008
Messages
20
Re: 1983 mercury v6 150 hp

yes other than jealousy ;) is the wear on the 2 cylinders something to worry about or to look for?
 

CharlieB

Vice Admiral
Joined
Apr 10, 2007
Messages
5,617
Re: 1983 mercury v6 150 hp

Clean the carbs and rebuild the fuel pump, just to be sure.

That center carb may have started to run a bit lean and could have been about to destroy 3 & 4. Make sure you don't let it get any worse than it is nowand you should be fine.

Ditto on the jealousy remark!
 
Joined
Aug 30, 2008
Messages
20
Re: 1983 mercury v6 150 hp

thanks guys and while you guys were probably out on the water last year i had to sit it out because i didnt have the time or money to get the boat on the water. so iam lucky but its about time.
 
Joined
Aug 30, 2008
Messages
20
Re: 1983 mercury v6 150 hp

havent had a chance to mess with it anymore but i was thinking... doesnt it have 3 double barrel carbs with seperate floats in each? whats the chances of both starting to run lean and give the same wear at the same time?
 

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: 1983 mercury v6 150 hp

havent had a chance to mess with it anymore but i was thinking... doesnt it have 3 double barrel carbs with seperate floats in each? whats the chances of both starting to run lean and give the same wear at the same time?

Good. :D

Check compression. If it's good, do the awakening a sleeping motor routine, slap it on a boat, and drive it like yer mad at it. Enjoy.
 
Top