Since I don't fix cars for a living, you're not likely to. But then I'd guess you don't fix them yourself anyway. ;-)
Can't be bothered.
I don't use WD40 for anything. It's just a heavily marketed 'fix all' product which does nothing as well as the correct product for the job.
Oh, c'mon. Penetrating oil has its place in any toolkit. Just like an adjustable spanner does...
The problem with any penetrating oils, WD40, PlusGas etc, is that they are innefective at freeing badly corroded fasteners. It just doesn't penetrate to where it's needed. The Consumer Association, 'Which' carried out some tests some years ago and came to the same conclusion. I've carried out some tests myself once. I found some heavily rusted bolts with nuts screwed on in a shed at work. I left them to soak overnight in PlusGas. Next day I tried to free the nuts. One or two I did manage to free, but noticed the threads in the nuts appeared to be dry, so I washed and dried another couple, and cut the nuts off. The threads were completely dry. Evidence that the PlusGas hadn't penetrated the rusted thread in the nut at all. It may be of some benefit if a fastener has some slight movement, as it's likely that it will then be able to get to where it can provide a little lubricant, but as far as doing what they claim it does, forget it. In a few cases it might help, so maybe because of that it's worth a try, but IMO you'd do just as well with parrafin, (kerosene) or an oil thinned out with petrol. Mike.
You are right. Those ball bearings are very expensive because they are so rare. In fact, no (modern) BMW that I am aware of has ball bearings for the wheel hub. They all have tapered roller bearings as 99.9% of all cars do.
Good for you... So how do you suppose that the brake rotor is meant to be removed from the hub? Talk to it nicely? Promise it dinner and a movie?
You are just full of all kinds of great wisdom and advice... WD40 will not damage seals or rubber. It is just a light oil for use in displacing water (actually not even a penetrating oil) and in preventing rust.
Yeahbut, WD40 is NOT a penetrating oil. Read the can, man...
From the WD40 website.
CLEANS: WD-40 gets under dirt, marks and grease making it easy to wipe away. It also dissolves adhesives, allowing easy removal of labels, tape, and stickers
PROTECTS: WD-40 protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements
LUBRICATES: WD-40's lubricating ingredients are widely dispersed and hold firmly to all moving parts
PENETRATES: WD-40 loosens rust-to-metal bonds and frees stuck, frozen or rusted metal parts
DISPLACES MOISTURE: Because WD-40 displaces moisture, it quickly dries out electrical systems to eliminate moisture-induced short circuits. Turn the power off before you spray
Mike.
But I do keep penetrating oil in my 'toolbox'
"Dean Dark" a écrit dans le message news: snipped-for-privacy@4ax.com...
and a hammer _big_ ??? ;-)))
Could be but an extractor is far more efficient !
I agree
It is just a light oil for use in
Since its very thin it may penetrate under the seals and locally dissolve the grease. Even a visual inspection can't reveal it without dismounting. Seal lips may run dry. Wd40 prevents rust as long as there is a film of wd40 in contact with the metal (metal parts inside a bag for example). Spray it on a bare metal surface and let it evaporate. It will dissolve the residual greases and leave the cleaned metal exposed to the air. I made the experience. Pistons don't like it at all.
A bimmer is far too delicate not to be pampered isn't it ?
Nonsense. If it got under the seals, the seals would be knackered anyway. In any case, the seals that matter are protected by boots.
Rubbish. I agree that as a rust protective it's pretty poor if exposed to the weather, but it doesn't disappear that quickly. Try painting a surface after it 'evaporates' You'll soon find out it's still there.
I made the experience. Pistons
Eh.Now you're fishing for reasons. What pistons? Ally engine ones, or the chromed ones in calipers?
It's not delicate in that sense at all. Suspension, and braking systems, inc calipers are designed to work in the harsh environment of being sprayed with water and road dirt etc. To suggest that a little WD-40 is going to cause problems is just not true, unless it's sprayed in quantity all over the pads and discs, and no one is suggesting that. Mike.
Is anyone saying that? I thaught we were talking about caliper seals, which are not made of rubber. Oil, including WD-40 will attack and soften rubber, but seals and boots on the calipers, and steering rack etc, and seals in the engine, are made of a neoprene which is impervious to oil. Mike.
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