engine life

ortho1121

Recruit
Joined
May 28, 2011
Messages
3
When I bought my first boat with I/O the engine hours here in the Northeast were generally around 150-200 on used boats. I am now looking for a centerconsole with outboards in Florida and all the boats seem to have 400 hours or more. I guess this is due to the long season but I want to know the expected life of an outboard and time interval for major overhauls? Any help appreciated.
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: engine life

a lot of florida boats are snowbird boats. the corrosion will often kill an engine long before the hours. look at it this way. even a yugo and a chevette could go 60,000 miles with minimal maintenance. that's about 1500hours. A commercial lawn mower goes 4 hours a day, 48 weeks a year, for three years ... that's 3000 hours for a vanguard type engine.

now, do you think your $15,000 outboard is at least as well built as the $1200 kohler command that Nothern tools has on display?

corrosion. look for white residue around places where stainless bolts are exposed and/or trim sytem mounting shafts.
 
D

DJ

Guest
Re: engine life

Outboards can easily go 2000 hours+. It's all in how they were maintained, or the lack of.
 

ortho1121

Recruit
Joined
May 28, 2011
Messages
3
Re: engine life

Thanks for the info, but what is the regular maintenance schedule on outboards/ Up here we winterize every year.
 

Home Cookin'

Fleet Admiral
Joined
May 26, 2009
Messages
9,715
Re: engine life

It's a matter of preference but the books show about 100 hours/annually, suggesting that 100 hours a year is typical. Because the south doesn't require winterizing, lots of boaters don't have that annual reminder to do what needs to be done.

Outboards don't require a lot of apparent periodic maintenance like winterizing, changing oil, etc. so it's easy for owners to skip on the "runs fine" theory. So when you buy used, if you can, find out if the seller checked/changed the lower unit oil and replaced the water pump impeller often. Those are the two most important items. The others, like changing plugs and wires, is more of a performance than maintenance/care issue.

There are 2 types of aging when it comes to outboards: hours and years.
Every motor in normal storage conditions will age over the years regardless of how much it is run, especially in salt air. Rubber breaks down; impellers crumble; bolts seize and eletronic connections get funky. So a 25 year old motor is not the same as a 5 year old no matter how much or little it's run.

On the other hand, hours work both ways. Too little use is not good; they need to be run. So a 15 year old motor with 40 hours is not a good thing, unlike a collector car or bike. 500 hours a year is a lot of wear and commercial guys wear them out in 2 years, so way too much is not a good thing, either.

A hidden factor is the prop. If your motor's top RPM is 5000 and it's propped so that it runs at 6000, you are running an extra hour of life for every minute--and you get into wearing it out like a commercial user. BTDT.

Thanks for the info, but what is the regular maintenance schedule on outboards/ Up here we winterize every year.
 

Mi duckdown

Commander
Joined
Apr 14, 2007
Messages
2,575
Re: engine life

I'm Glad I live on the Great Lakes. Motors seem to last longer with out the corrosion. .02
Of course I can't catch wahoos Up here. Salmon.
 

kahuna123

Senior Chief Petty Officer
Joined
Jun 2, 2011
Messages
703
Re: engine life

there is no direct answer to your question. but down here corrosion usually takes a motor out of service long before hours due. Good luck getting a 15 year old barely used motor apart with destroying it. Main thing down here is lack of use. Its hard to run one every other month in salt, flush it and walk away and expect everything to be good 2 months from now.
"working outboards run forever compared to the one that been sitting for years.
 
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