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Art Coe
 
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Default Advice on Dormant Outboard Motor

Appreciate some thoughts on putting my outboard motor (30 hp
Mariner)back into service. I knew it would be out of operation for
awhile so I flushed it out good, ran the carb dry, changed the lower
unit oil, squirted some two stroke oil into the cylinders via the
spark plug holes and pulled the starter cord a couple of times.

Time slipped on by and the press of other things kept me away from my
boat. Now, when I'm ready to start using it again, I realize that 10
years have passed since I "serviced" it. I'm not sure how to proceed.
Do I have a piece of junk, suitable only as an anchor or scrap
aluminum? Should I simply get some fresh gas, hook up the battery and
try to fire it up? Should I tear it down and replace gaskets, pump
impeller, etc. before trying to fire it up?

Any advice appreciated.
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Short Wave Sportfishing
 
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On 15 Oct 2004 17:28:42 -0700, (Art Coe) wrote:

Appreciate some thoughts on putting my outboard motor (30 hp
Mariner)back into service. I knew it would be out of operation for
awhile so I flushed it out good, ran the carb dry, changed the lower
unit oil, squirted some two stroke oil into the cylinders via the
spark plug holes and pulled the starter cord a couple of times.

Time slipped on by and the press of other things kept me away from my
boat. Now, when I'm ready to start using it again, I realize that 10
years have passed since I "serviced" it. I'm not sure how to proceed.
Do I have a piece of junk, suitable only as an anchor or scrap
aluminum? Should I simply get some fresh gas, hook up the battery and
try to fire it up? Should I tear it down and replace gaskets, pump
impeller, etc. before trying to fire it up?

Any advice appreciated.


I can tell you what I did with an '86 Johnson 75 that I put up in
similar fashion to what you did a couple of years ago.

I pulled the plugs, shot some WD-40 (CRC will also work) into the
cylinders, pulled it through a couple of times, some more WD, pulled
it through a few times, then more WD and gave it a good eight/ten
pulls, checked the spark the old fashioned way, put it in gear and
pulled it through a time or two, put the plugs back in and got ready

I didn't quite double the recommended mixture (I can't remember if it
was 100 or 50:1), but maybe about a 1/4 or so over so it would get a
little more oil than necessary. Put a little of the mixture into a
spray bottle and shot some into the carbs, then started her up.

Nice thing, a grunt or two and wham - started, roughed it'self out a
little bit, settled down and purred right along. I didn't push it out
of idle for about five minutes, then put a little load on it, let it
idle, then shut it off, took it to the lake and ran a tank full
through it.

Worked like a charm.

All the best,

Tom
--------------

"What the hell's the deal with this newsgroup...
is there a computer terminal in the day room of
some looney bin somewhere?"

Bilgeman - circa 2004
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M-Tech
 
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I second that motion, I tear NOTHING down unless I know it's broke or HAS a
problem.

Only thing I'll add is that I prolly change the oil in the lower....and make
sure I have my cell phone with me on the first couple of uses:-)

Don

I pulled the plugs, shot some WD-40 (CRC will also work) into the
cylinders, pulled it through a couple of times, some more WD, pulled
it through a few times, then more WD and gave it a good eight/ten
pulls, checked the spark the old fashioned way, put it in gear and
pulled it through a time or two, put the plugs back in and got ready

I didn't quite double the recommended mixture (I can't remember if it
was 100 or 50:1), but maybe about a 1/4 or so over so it would get a
little more oil than necessary. Put a little of the mixture into a
spray bottle and shot some into the carbs, then started her up.

Nice thing, a grunt or two and wham - started, roughed it'self out a
little bit, settled down and purred right along. I didn't push it out
of idle for about five minutes, then put a little load on it, let it
idle, then shut it off, took it to the lake and ran a tank full
through it.

Worked like a charm.

All the best,

Tom
--------------

"What the hell's the deal with this newsgroup...
is there a computer terminal in the day room of
some looney bin somewhere?"

Bilgeman - circa 2004



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Sunny
 
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Art Coe wrote:

Appreciate some thoughts on putting my outboard motor (30 hp
Mariner)back into service. I knew it would be out of operation for
awhile so I flushed it out good, ran the carb dry, changed the lower
unit oil, squirted some two stroke oil into the cylinders via the
spark plug holes and pulled the starter cord a couple of times.

Time slipped on by and the press of other things kept me away from my
boat. Now, when I'm ready to start using it again, I realize that 10
years have passed since I "serviced" it. I'm not sure how to proceed.
Do I have a piece of junk, suitable only as an anchor or scrap
aluminum? Should I simply get some fresh gas, hook up the battery and
try to fire it up? Should I tear it down and replace gaskets, pump
impeller, etc. before trying to fire it up?

Any advice appreciated.


Couple of years ago a neighbour gave my son a '64 Evinrude 18hp which
had been "stored" (lying in the dirt) under his cottage for at least 15
years of Canadian winters.

I took the lid off and gave it a visual inspection. One of the fuel
lines was obviously unfit for service (rotted) and was replaced. Pulled
the spark plugs, they looked good and were gapped right, so back they
went. Changed the gear oil, then installed it on a 12' aluminium cartopper.

The motor started third pull and ran very nicely. My son has been
running it almost daily for the past two seasons. It broke a reed last
spring, but apart from that has been absolutely reliable.

IMHO, don't mess with it unless you know it's broken :-)

Sunny
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Clams Canino
 
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Why?

Because IF the impeller is dryrotted and breaks up, the shrapnel may well
wind up going up the pipe and into the cooling system - where is is bound
(by Murpheys Law) to find the most critical water passage and block it.

Changing the impeller is VERY trivial compared to all the alternatives.

Your sons motor is lucky is all.

-W


"Sunny" wrote in message news:kz%dd.31253

Why?

It's not a trivial job, and IME there's no evidence impellers are harmed
by dry storage.

My son's motor is 40 years old, and still has the original impeller -
despite sitting idle for 15+ years before being returned to service
three years ago.

Paul



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