David of Essex
Well-Known Member
Is it good to apply WD40 to your engine on regular intervals or just when lying up? Any downside to using this product.
David
David
WD 40
- Thread starter David of Essex
- Start date
tinkicker0
Well-Known Member
It will make any wiring insulation and certain neoprene parts go hard and brittle over time.
That didn't stop me though.
That didn't stop me though.
B175Chris
Well-Known Member
It's WD40, well known for curing every problem ever invented!
Common Cold? Bit of WD40'll fix you up.
Common Cold? Bit of WD40'll fix you up.
Malcb
Well-Known Member
I was told that WD40 was OK on land, but shouldn't be used in a marine environment. Don't know why, but I've never had it on board, and never felt that I'd missed it. I always use proper penetrating oil for locked threads etc. and lubricants like Sailkote for the other things on board like sail slugs, squeaking stern gear, blocks etc., and as the engine is diesel, it doesn't seem to need the damp starting techniques that land based petrol angines (older type) seemed to need. Even the YC 4stoke O/Bs (for which I'm responsible) seem to work well without it.
jfm
Well-Known Member
No significant downside afaik. I spray it around generally. Good stuff. More importnat in winter, obviously.
Very surprised to hear malc's report that some say it isn't suitable for marine use - I just dont think that's correct. I'd agree with malc that proper products for the job (like penetrating oil on seized threads) can work better but where WD40 is really useful I find is simply covering metals in a fine film of oil to prevent corrosion. I see that, not lubrication, as its main purpose
Very surprised to hear malc's report that some say it isn't suitable for marine use - I just dont think that's correct. I'd agree with malc that proper products for the job (like penetrating oil on seized threads) can work better but where WD40 is really useful I find is simply covering metals in a fine film of oil to prevent corrosion. I see that, not lubrication, as its main purpose
[2068]
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It's not a smart move to use WD40 on open circuit boards, as it leaves a layer that can hold salt and conduct.
But as a general purpose way of keeping moisture off engines and out of closed connectors, it works well for me.
dv.
But as a general purpose way of keeping moisture off engines and out of closed connectors, it works well for me.
dv.
geardownthreegreens
Well-Known Member
I spray it around on a regular basis. Isn't it supposed to stop rust,well i'd have thought a cast iron block in a salt enviroment could do with all the help it can get.
I will however,avoid cables as mentioned,cant be doing with them breaking down.
I will however,avoid cables as mentioned,cant be doing with them breaking down.
Scubadoo
Well-Known Member
I use Duck Oil and in some areas also Waxoyl both much better and last, although I have run out and started using WD40 (when needed) until I get some more duck oil and Waxoyl.
Not easy to find Duck oil but can order online and some car spares places do it, and I don't remember seeing it available in halfords.
I generally use it in Winter, the best thing is waxoyl on the stern bolts and mountings BUT not on rubber hoses etc - (as stated on the tin).
Not easy to find Duck oil but can order online and some car spares places do it, and I don't remember seeing it available in halfords.
I generally use it in Winter, the best thing is waxoyl on the stern bolts and mountings BUT not on rubber hoses etc - (as stated on the tin).
Talbot
Well-Known Member
Biggest drawback with WD40 is the graphite that is in the mix. Very good at protection from water etc, but will fail the white glove test.
I came across a silicon spray that was as good at the water dispersal, but was cleaner. Trouble is I have lost the details . . . . . . /forums/images/graemlins/blush.gif
I came across a silicon spray that was as good at the water dispersal, but was cleaner. Trouble is I have lost the details . . . . . . /forums/images/graemlins/blush.gif
BobnLesley
Well-Known Member
...I was told that WD40 was OK on land, but shouldn't be used in a marine environment...
Heresey! Burn Him!
I thought everyone knew that WD40 compises 50% of the complete marine tool-kit:
If it doesn't move and should - WD40
If it moves and shouldn't - Duct Tape.
Heresey! Burn Him!
I thought everyone knew that WD40 compises 50% of the complete marine tool-kit:
If it doesn't move and should - WD40
If it moves and shouldn't - Duct Tape.
VicS
Well-Known Member
[ QUOTE ]
Biggest drawback with WD40 is the graphite that is in the mix
[/ QUOTE ] There's graphite in it?
http://en.wikipedia.org/wiki/WD-40
Biggest drawback with WD40 is the graphite that is in the mix
[/ QUOTE ] There's graphite in it?
http://en.wikipedia.org/wiki/WD-40
Talbot
Well-Known Member
You cant possibly refute an argument by quoting an article in wikipedia.
To the best of my knowledge the formulae is secret still, but will accept that graphite is not listed in the safety leaflet - but then it probably wouldnt anyway! /forums/images/graemlins/tongue.gif
To the best of my knowledge the formulae is secret still, but will accept that graphite is not listed in the safety leaflet - but then it probably wouldnt anyway! /forums/images/graemlins/tongue.gif
paulm299
Well-Known Member
If there was graphite in WD40 it would conduct electricity and therefore defeat the object of a product that displaces water on HT leads and such .
Millbay8
New Member
Don't forget that WD 40 stands for MOD Spec WD 40 ie 'Water Dispersant 40 days' and needs replenshing every 40 days!
VicS
Well-Known Member
Fair comment about Wiki articles
BUT
Since you are telling us that it contains graphite do quote the source of your information!
BUT
Since you are telling us that it contains graphite do quote the source of your information!
Major Catastrophe
Well-Known Member
[ QUOTE ]
Don't forget that WD 40 stands for MOD Spec WD 40 ie 'Water Dispersant 40 days' and needs replenshing every 40 days!
[/ QUOTE ]
No it doesn't.
Nothing to do with MOD as it is an American company.
I was always told the 40 refers to the formula number.
Don't forget that WD 40 stands for MOD Spec WD 40 ie 'Water Dispersant 40 days' and needs replenshing every 40 days!
[/ QUOTE ]
No it doesn't.
Nothing to do with MOD as it is an American company.
I was always told the 40 refers to the formula number.
VicS
Well-Known Member
I though the 40 was the 40th formulation tried
But perhaps that's a bit more nonsense I read in Wiki.
But perhaps that's a bit more nonsense I read in Wiki.
TigaWave
Well-Known Member
ACF-50 is better...
David of Essex
Well-Known Member
Thanks for the replies, some very interesting comments. Will continue to use on engine and other items that need protecting. Started to use it when a slight rust mark appeared on one of the engine mountings
David
David
alan006
Well-Known Member
I agree with Scubadoo that Duck oil is better for spraying for corrosion resistance. A person I know got a bollocking from a clock repairer for spraying the movement of a grandfather clock with WD40, although it fixed the problem at the time, the clock repairer explained that the sticky residue left trapped dirt which caused increased wear on the touching parts.
