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General Category >> Rubber Side Down! >> Using WD40 to keep cylinder head lubed
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Message started by paulmarshall on 11/15/14 at 23:43:50

Title: Using WD40 to keep cylinder head lubed
Post by paulmarshall on 11/15/14 at 23:43:50

During the Cafe build I have been periodically removing the spark plug, spraying WD40 into the cylinder and turning the engine over anticlockwise by placing a socket on the front sprocket nut.
Is this OK? and could I be doing more?

Title: Re: Using WD40 to keep cylinder head lubed
Post by wambr on 11/16/14 at 01:18:53

Paul, why do you do that?
in principle, the use of WD-40 any harm to the engine of your motorcycle will not bring, but for the preservation of the engine I would not advise to apply... WD-40 is a mixture of kerosene with additives. accordingly, it is not a lubricant in the usual form.
for preservation I would be better recommended by syringe to drip a little engine oil into the cylinder

Title: Re: Using WD40 to keep cylinder head lubed
Post by paulmarshall on 11/16/14 at 01:28:13

I am worried that if the engine sits for extended periods it can cause damage to the rings and cylinder wall.
Maybe I am being a little pedantic.
Drops of oil sounds like a better option.

Title: Re: Using WD40 to keep cylinder head lubed
Post by wambr on 11/16/14 at 03:08:01

of course it's better!in Russia the winter is long and because every time I do so- it's checked more than once and I can confidently advise to do so.

Title: Re: Using WD40 to keep cylinder head lubed
Post by Dave on 11/16/14 at 06:48:35

Sta-Bil makes a fogging oil that is designed to be used for engine storage, it is most likely a better product for this use than WD-40.
https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHFX_enUS580US580&ion=1&espv=2&ie=UTF-8#q=fogging+oil&tbm=shop&spd=2003321717725779474

One important thing is to make sure the engine is somewhere on the compression stroke....so that both intake and exhaust valves are closed. If you have the rear tire on - put the bike in gear and push it forward until the engine comes up on compression. If the bike is apart....take off the left timing cover and rotate the engine counterclockwise (same direction at the wheels when moving forward), until you feel the compression.