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best spray to prevent corrosion on new outboard

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best spray to prevent corrosion on new outboard

Old 06-02-2015, 07:32 PM
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656 under cowling and T-9 for hardware, nuts bolts, and electrical bus bars etc. I do this from new any my boats have never seen a hint of rust.


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Old 06-02-2015, 08:27 PM
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Been using white lithium grease in the aerosol can for 25+ years with great results. It dries with a waxy finish that will last a long time. Great under the cowling and on elec connections
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Old 06-02-2015, 08:28 PM
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Boeshield T-9
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Old 06-03-2015, 05:55 PM
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Thanks guys...Boeshield T-9 and 656 it is.

BTW motor came in ...I see the bolts they are talking about. I am keeping the motor inside till my garage space is setup for it, but once outside I will start spraying those bolts.

Thanks for all the ideas..
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Old 06-03-2015, 06:02 PM
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Corrosion X on O/B and any electronic components such as battery terminals.
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Old 06-03-2015, 06:13 PM
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Corrosion Block, all over it before it goes in and when it comes out. Shines like new. Eats any existing and prevents any from forming.
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Old 06-03-2015, 06:40 PM
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I'm a big fan of fluid film. I use several cases a year. But imo, it will make a greasy mess of your outboard. For an outboard, I would use Boeshield as others had mentioned.
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Old 06-03-2015, 06:59 PM
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I have always used Boesheild especially on new motors. It can take some time with the tube attached to get into every nook and cranny but it's worth it. Besides, when I buy a new motor I don't mind getting in there to get familiar with every inch of the motor.
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Old 06-03-2015, 07:38 PM
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I use Fluid Film and my motor looks new (after a year of use)
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Old 06-04-2015, 07:12 AM
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656 does the trick for me after each trip the last 4 years.
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Old 06-04-2015, 07:14 AM
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You guys should check out CRC's site, they make specific products for corrosion protection, 656 is not one of them.
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Old 06-04-2015, 07:22 AM
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I have a 1994 Johnson on one of my boats and have used WD40 from day one and the motor still look new. I spray it on maybe once a month in boating season and when its put up for the winter.
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Old 06-04-2015, 07:49 AM
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I personally like CorrosionX. Wasn't particularly fond of the waxy film that Boeshield left behind.
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Old 06-04-2015, 08:32 AM
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Corrosion X green for heavy duty film application like on trailer hubs and axles and leaf springs. Corrosion X red for motor, steering cylinder, electrical wires and connections. I also don't like the yellow/beige film left behind from the T9 Boeshield. Although it works equally well as the green can of Corrosion X.
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Old 06-04-2015, 08:35 AM
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Used Silicon spray after every wash on my OB for the last 18 years and no corrosion.
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Old 06-04-2015, 09:27 AM
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Originally Posted by MacCTD View Post
CRC Heavy Duty Corrosion Inhibitor, http://www.crcindustries.com/auto/?s=06026
656 is a lubricant.
That's what I like too. If I want one that stays liquid then I like Corrosion X
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Old 06-04-2015, 09:42 AM
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Originally Posted by GCFishin4Fun View Post
I use Fluid Film and my motor looks new (after a year of use)
I sprayed my bracket, trim motor and lift rams. Carried to shop he looked at it quickly and said my seals were gone. I told him to look again I sprayed with fluid film he had not seen anyone do that before. It does make a mess but it will protect I like it.
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Old 06-04-2015, 10:50 AM
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x5 on Corrosion X
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Old 07-11-2015, 09:15 PM
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Yamaha recommends silicon spray... what's the difference between this and other products such as CRC Heavy Duty & Corrosion X?
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Old 07-12-2015, 05:47 AM
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Was told by my Suzuki Dealer, do not spray 02 sensors.
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