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 How to unclog a salty engine		  New Topic  Topic Locked
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10timesSaltier
1st Mate

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80 Posts
Initially Posted - 09/20/2004 :  17:28:41  Show Profile
My 1979 Honda 9.9 is one salty engine. I had been neglecting it for years even sailing in the horrendously salty Great Salt Lake. Finally the water check stream looked a lot more like the water drip.

I tried making a flush out system like the one in the Tech Tips section, but it just shot water out the exhaust and couldn't really get water through the cloggled part.

Here's what worked for me: HOT WATER. Cold water doesn't seem to do much to salt build up, but hot water seems to turn it to mush. In order to get hot water into the motor, I lowered the engine into a large bucket of fresh water, turned on the motor and let it run. The motor heats up the water and returns it to the bucket, pulls it back in and heats it up more and eventually dissolves the salt. Obviously you want to be careful with this as it could overheat your engine, or run dry if the water check missed the bucket.

My old motor has got great flow back or is pissin' strong as my kids say. Two of my friends have tried it on their motors with similar results.
Brian.
Great Salt Lake (10-times saltier than the ocean)
"SAFARI", '81 C25 TR-FK #2275
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JimB517
Past Commodore

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USA
3285 Posts
Response Posted - 09/20/2004 :  23:53:18  Show Profile  Visit JimB517's Homepage
add some Salt Away or white vinegar to the bucket and you'll get even more salt out.
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 09/21/2004 :  08:35:03  Show Profile
Brian,
I agree with Jim. When my '93 sailmaster lost its flow I pumped a quart of white vinegar up through the outflow tube and let it set overnight. In the morning the flow had returned to normal. When this condition developed the motor, then 9 years old had never been flushed. It now gets flushed once a season for 1/2 hour.

Val on Calista # 3936
Patchogue,N.Y.
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/21/2004 :  09:51:33  Show Profile  Visit Frank Hopper's Homepage
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by 10timesSaltier</i>
<br />My 1979 Honda 9.9 is one salty engine. I had been neglecting it for years even sailing in the horrendously salty Great Salt Lake. <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Salt Lake to Wichita is an easy haul, I-70 to I-135. See you at the nationals, (tall rigs are in short supply).
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jwilliams
Captain

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USA
357 Posts
Response Posted - 09/21/2004 :  11:34:45  Show Profile
Well, Val, it is good to read from you! It's been a while!

Jim Williams
Hey Jude C25fk 2958
SF Bay
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 09/21/2004 :  13:56:24  Show Profile
ET TU JIM
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Sid
Navigator

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129 Posts
Response Posted - 09/22/2004 :  10:21:15  Show Profile
Val,
How did you pump the vinegar through the outflow? I have a 96 Suzuki that came with my boat that has poor water flow (used in salt water before) The outflow is only about 1/8" in diameter. If I could get it flowing stronger, I would use it on my fresh water lake. Any way to be sure it is just clogged and doesn't need a new impeller?
Thanks,
Sid
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 09/22/2004 :  12:50:06  Show Profile
Hi Sid,

I used a spray bottle that fit the, you'll pardon the expression, piss tube and pumped it full. Then I pinched off the tube and waited for the magic to happen. Anything that is easily made-up to the tube will do just fine. Turkey basters come to mind but I think you get the idea, not rocket science. I suppose now that I've bought the factory flusher($30) I could use it to do the job. But I'm one of those depression babies that would cut off his arm to save a buck, but I'm learning.

Val on Calista # 3936
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.