MERCURY OVERHAUL???

[Preston]

I am curious if anyone has ever rebuilt the top end of a Mercury model 1500, 1978, 150hp??? My neighbor has one that he had apparently fired up on the lawn without a fake lake--well rest of story is probably concievable. With no H2O pump to cool, the engine ran for only a short distance after launching. I pulled the plugs and found aluminum splattered on 2 of the six plugs, as far as the other four cylinders I think that the rings probably collapsed. Is it possible to pull this power head down and do a piston and ring job by myslef???? Do the pistons push out the top or does the whole crank and rod assembly pull out the crank side of the motor??<br /><br />Any help would be appreciated<br /><br />Preston

 

[Kenny Bush]

Re: MERCURY OVERHAUL???

Preston, you are going to have to split the whole case to get to the pistons. It goes a little easier than it sounds. You will want to acid test the cylinders to see if the sleeves are worn through. If not, check Wiesco for a complete piston kit. I did one of mine a couple of years ago, for 2 piston scours, and Mercury could not sell me individual pistons and rings, I had to buy a whole set........Anyway sounds like you know what you are going to have to do.....Goodluck.....BushCat

 

[KennyKenCan]

Re: MERCURY OVERHAUL???

After you disassemble the thing, you may find that there are alot of broken parts. You may want to consider a remanufactured powerhead as an alternative, esspecially if the cylinder walls are no good. It will probably be cheaper.

 

[Waterbugtoo]

Re: MERCURY OVERHAUL???

You might or might not be interested in this....<br /><br /> Web Page

 

[Hooty]

Re: MERCURY OVERHAUL???

I thought there was some sort of rule about dealers ****ing there products on this board.<br /><br />c/6<br /><br />Hooty

 

[Backlash]

Re: MERCURY OVERHAUL???

"You might or might not be interested in this..." Doesn't sound too much like high pressure to me, just a possible option for a member to consider. JMHO.<br />Backlash

 

[Hooty]

Re: MERCURY OVERHAUL???

Not high pressure, just pi*ping.<br /><br />c/6<br /><br />Hooty