I have 2 large NOS parts which are covered in cosmolene

Previously with smaller NOS parts it hasn't been a problem but with these larger parts it's a bit more difficult to get access to all nooks & crannies

Degreaser ?
Heat in an oven ?
Boil in water ?
Roll up the sleeves & pick it off by hand/WD40

Someone must know the best method

Job

email (option): Jonnyob1@googlemail.com

I always remove cosmolene by boiling the part in water and then wiping off any residue while it is still hot...Ian..

email (option): ian@wright52.plus.com

John, I have found heating it with a large flame works quickest, everything drips off, an leaves only a thin film.

Put something under the part to collect the cosmoline and keep the flame at a distance, so not to set fire to anything!

My 2p,

Lex

email (option): welbike@welbXXX.net (think about this!)

There was a time you could have got a boy scout to do it for a shilling

Degreaser doesn't work in my experience, heat can help but it depends on what the part is made of and what finish it has.

Rob

email (option): robmiller11(a)yahoo.co.uk

Yes, some caution should be exercised using a gas torch of any type to ensure heat treated components are not taken to too high a temperature...

I think it is a safer bet to boil in water which can't exceed boiling point and therefore will have no effect in the case of treated components...Ian

email (option): ian@wright52.plus.com

one of those electric paint strippers is ideal, nice and hot and no flame.
It'll melt solder so even cosmolene will submit

I agree with Ken. I've used a paint stripper hot air gun several times and it shifts almost all the cosmolene. If SWMBO is out you can put it in the oven with a suitable drip tray.

One of my old jobs was to remove grease and packaging materials from military stuff...
You need a triclorethelyne bath and a rack. The parts do not go into the liquid but instead sit above the liquid so the vapour can do its stuff. The vapour disolves the greases and preservatives. I think stubborn areas can be brushed off with the stuff but dont quote me on that.
Warning... Triclorethelyne is evil stuff so avoid breathing it in or getting it on your skin!

email (option): fozzie001@hotmail.com

Just been trying to clean a NOS piston - hot air gun definitely work.

Followed by a final clean in BRAKE CLEANER - purchased in 5L cans at a local CarShop its much cheaper than my usual paint thinners and has become my weapon on choice against oil/greases etc and engine/gearbox rebuilds.

Evaporates quickly without residue and doesn't seem to attack age-old paint - but I'd be careful on anything applied this centaury!

Its not Tric. but suspect its one of its (safe?) replacements.

email (option): ginantonik@tiscali.co.uk

oven cleaner/brake cleaner.

I had to remove cosmo from tons of firearms and I always use denatured alcohol.

email (option): mike.kaczorowski@gmail.com

Hmm, wait till her indoors is away for a few days, Steve I trust you are taking notice,!! then in the dishwasher, hardest wash, Bingo and I have got perfectly clean clutch and brake leavers two more dish washes and the smells gone,and h.i.d never knew, fingers crossed,

email (option): warbikesat geee male dot comm (you will need to think about this)