If it weren't for bad luck...

Lootas1

Petty Officer 3rd Class
Joined
Jan 30, 2006
Messages
89
You know the say. If it weren't for bad luck, I'd have no luck at all. Well, after paying $500 for an old six cylinder Merc and learning it was junk, I sold it on eBay for $35. Then I bought a Merc 650 for $500 (which I was told the lower unit from the six cylinder motor would have bolted right on.) Now I learn the seals are shot in the lower unit. (had it filled and after about 10 hours use it is pretty much all water in there.) Since I've bungled about every outboard repair job I've started, I check with a Merc shop to see what it would cost to replace the seals. I was told it would be around $600! Now I'm wondering why can't I just fill the lower unit with grease each time I use the boat and drain it when I get back? I probably won't take the boat out more than half a dozen times a year and I'm 72 so how many more years will I be running it? I know this will go against the thinking of you who like to fix old motors but for me, a poor old guy, wouldn't that be the cheapest answer?
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: If it weren't for bad luck...

Not really eccologically friendly but with limited use give it a try.As I understand it some of the old timers do it with their old motors.If it doesn't leak too bad I would refill it right after you drain it so it has fresh gear lube
coating the parts.I assume when you said grease you meant outboard gear lube.
 

JasonJ

Rear Admiral
Joined
Aug 20, 2001
Messages
4,163
Re: If it weren't for bad luck...

There is only four places the water can get in on your lower unit. The driveshaft seal, the shiftshaft seal, the propshaft seal, and the fill/drain plug seals. Usually the culprit is the driveshaft seal. Often the driveshaft develops pitting where the seal contacts the shaft. Theis can be fixed by either replacing the driveshaft or putting a Speedisleeve on it, and installing a new seal. I had your problem and that is what I had to do. It cost me around $50 to do it, but I am fairly decent at fixing things. If you were to have a shop do it, it would be much more.

You can do what you propose. Just use marine gear lube, as it withstands water better.
 

KaGee

Admiral
Joined
Aug 14, 2004
Messages
7,069
Re: If it weren't for bad luck...

Be surprised how many leaks are the result of a poor fiil/vent screw gasket. A Pressure and Vacuuum check is the only way to confirm.
 

gss036

Commander
Joined
Jan 18, 2003
Messages
2,914
Re: If it weren't for bad luck...

Jerry, sure hope you get that thing fixed w/o a lot of hassle. Give Jim'S Marine a call, get ideas/quote from him,this time of year he should be slowing down with all the fishing closed for now.
 
Joined
Nov 11, 2006
Messages
15
Re: If it weren't for bad luck...

Awsome Job !! I looked at your Pics. Thanks , Very informative !!
I studied each one, I am and have learned so much from this sight.Keep It Up !!..............................................................Pat
 
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