Kees / Dennis,
WD40 should NOT BE USED as a preservative on parts as you describe!
As you may be aware it is a thick, sticky resinous oil that is the solute in
a thinnish evaporating petroleum based solution. Over time it evaporates to
a yellowish varnish type film over parts and sticks them together. At times
they are stuck very firmly together ! <SMILE> I have no doubt you will have
come across components stored for a couple of years stained with such a film
that needed a thinners or hot water (dishwasher - but don't let the wife
know) wash to remove it.
Away from the car side, my father-in-law has a history of electrical
engineering in the aircraft, vehicle component and machine manufacturing
industries and changed trades entirely after being made redundant, buying a
jewellers shop. He qualified in watch and clock making (he made a clock
from bare metal, turning and cutting shafts and gears - brilliant guy) and
made a reasonable side income just from cleaning WD40 from clocks that were
gummed up. A full strip down and clean in the ultrasonic bath was the
normal cure after an owner had decided to 'service' his own clock with the
thinnest oil they knew - WD40 !!
Do a Google search on engine preserving and you won't find WD40 has a
mention from the serious side.
Guy R Day
----- Original Message -----
From: "Oudesluys" <coudesluijs@chello.nl>
To: "Dennis Yeast" <yeastd@sbcglobal.net>
Cc: <healeys@Autox.Team.Net>
Sent: Tuesday, December 08, 2009 8:44 AM
Subject: Re: [Healeys] Extra engine, break it down or leave it together ?
> It is a water repellent, not water based. It is not a perfect rust
> preventive as it will wear away quickly when exposed, but in unexposed
> areas like in carbs, distributor etc. it OK for a long time.
> Kees Oudesluijs
> NL
>
> Dennis Yeast schreef:
>> I once heard but have never confirmed that WD-40 is a partially water
>> based product and not the best product for rust prevention over time.
>> Anyone know the true story?
>>
>> Dennis Yeast
>> email: yeastd@sbcglobal.net
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