Best way to clean off baked on grease?

[Lewis Moon]

I have a set of Campy carbon cranks that have a layer of baked on grease on the inside of the spider. Best way to clean it off? OMS isn't cutting it.

[Hindmost]

Mineral spirits do not dissolve it? Are you sure it is grease, petroleum based?

Any chance it's sport drink and grime? Water soluble...

[HenryA]

Oil eater.

[Dave]

I'd try hot soapy water. It may be energy drink.

[Indy]

I have been using Lysol wipes for all kinds of grime cleanup and they seem to do wonders.

For metal, I go over it again with a slightly damp cloth to get the residue off.

[RoosterCogset]

too obvious

[.RJ]

oven cleaner will remove any anodizing thats on the cranks/spider/ring, dont do that.

[buddybikes]

Simple green aircraft cleaner.

[cinema]

kerosene maybe. goo gone also works wonders

[RoosterCogset]

Originally Posted by .RJ

oven cleaner will remove any anodizing thats on the cranks/spider/ring, dont do that.

No kidding? Hmm.. but it's specifically for baked on grease. Mind you, not sure why the OP baked his cranks in the first place?

[Doug Fattic]

I'm a frame painter so I have a convenient supply of lacquer thinner I use to clean paint out of spray guns. It works very well on greasy problems. It is a very strong petroleum based liquid. I wear nitrile gloves when using it.

There is another petroleum based cleaner I use to get rid of sanding dust and finger prints before heading into the spray booth. It is sold under various brand names and is available at auto paint stores. It is a very mild liquid by comparison and I use this on surfaces that have decals that might get melted with a stronger cleaner.

[HenryA]

I’m serious.

https://oileater.com/industrial/clea...inal-formula/]

Let it soak a few minutes, scrub with gentle scrub brush and rinse in hot water.

[klasse]

some nice hot/warm water with simple green, let her soak. I have a feeling I'm not the only one who wants to see a photo of this grease layer.

[Ozz]

Originally Posted by klasse

some nice hot/warm water with simple green, let her soak. I have a feeling I'm not the only one who wants to see a photo of this grease layer.

Remove the chainrings first if using simple green to soak...not good for aluminum

I'd be careful with soaking in solvents too, as some can soften the carbon/epoxy....some heavy duty citrus solvents can do this. Good info here.

I'd probably start with really hot water and Dawn dish soap to start....just to be safe. Use a plastic brush to loosen....

Pictures would be helpful....

[.RJ]

Originally Posted by Ozz

Remove the chainrings first if using simple green to soak...not good for aluminum

The aircraft version is safe for anodizing and aluminum