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to spray or not to spray

Printed From: The Fishing Website
Category: General Forums
Forum Name: The Boat Shed
Forum Description: Discuss all things boating.
Printed Date: 19 May 2024 at 8:33am

Topic: to spray or not to spray
Posted By: Diversion
Subject: to spray or not to spray
Date Posted: 15 May 2003 at 11:11am

ok guys, answer this one.

do you spray your engine with crc/wd40 type products to ward off the dreaded corrosion?

iv'e read somewhere that you should not because the spray attracts dirt and eventually causes a short in the electrics etc,

and iff you do spray, what do you use?

your thoughts and comments

From the office of His Lordship

(Mayor of Whangapoua)

Posted By: Snapatak
Date Posted: 15 May 2003 at 11:22am

Mate I have always sprayed my out boards with a thin oil, I would take the risk in using oil as crossion is more likley to corse trouble.

At the moment I use CRC, but there are alsorts of products on the market, it depends on how much you want to spend and how fussy you are.

Posted By: smudge
Date Posted: 15 May 2003 at 11:25am
Not being an outboard mechanic ... but I am/was a sparky... I would say that it depends on whether you want your engine to stop from dirt build up or corrosion. I would go the CRC way with an annual clean up with a rag. When copper turns green it doesnt conduct so well. You dont want to needlessly unplug connections as the 'spring' pressure of the contacts weaken but I spray them once every year or so. I think there is probably a water resisting conductive paste out there just made for the job ... just for the electrical connections that is .... anyone know of one?

Posted By: Cookie
Date Posted: 15 May 2003 at 12:16pm

Its inox for me all the way, it isnt kerosine based meaning it dosent dry out. I also use it to spray my rods and reels, check out the link">

Posted By: Lethal
Date Posted: 15 May 2003 at 1:50pm

for me its WD40 all the motors (all 4) i have owed got the same treatment, every three mths i would waste a can on it, all my motors did over a 1000hrs and no trouble with corrosion..........

Cheers Lethal

Posted By: Diversion
Date Posted: 15 May 2003 at 3:00pm

thanks guys,

thats good enuff fer me! a spraying i will go!


From the office of His Lordship

(Mayor of Whangapoua)

Posted By: A C
Date Posted: 15 May 2003 at 6:37pm


               I'm of the same opinion as all of the guys above, I use CRC marine grade, you can buty it in bulk fairly cheaply at Repco, they have a 4 litre pack with a separate half liter spray bottle sold as a special together at $35. Beats the $12 spray cans by about three years !!



Posted By: NUDGER 52
Date Posted: 15 May 2003 at 10:51pm

Don`t spray round the starter, esp. the top as the drive unit on the pinion will eventually start slipping.



Posted By: Dio
Date Posted: 20 May 2003 at 11:31am


A good bit of info ray for Johnson 90 degree block owners unfotunately i found out to late about spraying the top of the drive unit on the pinion it has a clutch in there and it started sliping. You think your battery is dying.I had to pull start it in a rough sea.So beware guy's.


Posted By: tricky
Date Posted: 26 May 2003 at 4:27pm

 I am also a johnson 90hp owner,and I had problems with INOX as the plug caps had swollen and kept popping off the plugs,I secured them back with electrical ties, and went back to 4litre container of wd 40

no probs





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