merc 1150 wish list

[mellowyellow]

purchased this "70 1150 about 3 mo. back. it is<br />the cleanest 30yr old motor I have ever seen!<br />it is completely origional all the way down to<br />plug wires.<br />ran her for maybe 10-20hrs. so far, mostly<br />conservativly. starts,runs,idles good...no miss.<br />rectifier is bad (thanks JB) so don't know rpms,<br />but she has a problem with torque in the water.<br />it had the worst smellin' foul fuel you could find,<br />fist step new tank and sending unit, then impeller<br />now the country outboard doc. (only 1 around for 1hr)<br />has an unexpected lull and I jump at the opening.<br />he will get to her as soon as he fixes the little<br />sailboat OB that fell off when trailering <br />now i'm rambling.... if you were me, what would <br />be your wishlist of maintainence in the order you<br />think most important?<br />so far: rectifier, carbs/pumps rbld., igntn. ck,<br />compression,..... what else? <br />i'm not rich, but got a good deal on the boat/motor,<br />so I have a few bucks to give her some tlc right now. otherwise, it will be left up to me and he's<br />got 25yrs experience and I'm still trying to figure out the dang seloc manual....<br />as always, thanks in advance

 

[Bear]

Re: merc 1150 wish list

Since you already got a new impeller first thing is new oil in the lower unit. Then a new rectifier and spark plugs.<br /><br />If it ain't broken - don't fix it.<br /><br />Look for cracks in the fuel line and bulb (or was that included in the new/used fuel tank). Check all rubber hoses.<br />Make sure there is no overheating problems. <br />Check rpm @ wot as soon as possible (rectifier).

 

[mellowyellow]

Re: merc 1150 wish list

thanks Bear,<br />lower unit oil replaced when impeller changed.<br />hoses look good on outside but are 30yrs old.<br />think I'll have them changed. also thinking<br />about new plug wires, but those can be tested<br />I think? any other thoughts or tips are appreciated.<br /> <br />regards,<br />M.Y.

 

[j e hutchison1970]

Re: merc 1150 wish list

hey i got the same motor about 2 months ago, it runs very good but recently lost some power. my first trip out it was up to 42 mph at 5500rpms and sow im at 35-37 mph at 5000rpms. maybe thier just old? other than loss of power its a good ole motor.

 

[mellowyellow]

Re: merc 1150 wish list

hi Eric and welcome aboard!<br />my 1150 is in the shop having the fuel system<br />rebuilt (carbs and pumps). previous owner left<br />fuel in system for 5-6 yrs... bad! will let you <br />know how it turns out. my rectifier is bad so<br />can't tell you RPM's, but she wasn't going much<br />faster the 25-30mph. should push my 16' open bow<br />about 50 they are great old motors, commonly<br />called the "tower of power".<br />good luck and have fun....<br />M.Y.