[R-390] More chemicals from the dark side

[rbethman]

The kerosene method is also highly suggested by our good friend Roger, 
AI4NI, Ruszkowski.

It's one of those good tried and proven things.  It's probably safer 
then a whole lot of other things.

Bob - N0DGN

On 2/4/2011 11:08 AM, Shoppa, Tim wrote:
> My limited experience with automotive chemicals applied to non-automotive mechanisms:
>
> * Kerosene is far and away the best parts wash solvent given some working time (e.g. overnight).
>
> * Brake cleaner is a very fast-acting degreaser/solvent. It dries skin out real fast too. Smells like cleaning fluid? It also can take off many paints and probably not good to get it on synthetic rubber. I have used it near plastics without any obvious problem.
>
> * Carb cleaner seems to have acetone and toluene in it. It doesn't dry skin out real fast like brake cleaner, but I've also seen it damage plastics.
>
> My conclusion with respect to 390/390A geartrains, with my experience rebuilding yellow stripers, is that kerosene soaking is far and away the way to go but does require tearing down/rebuilding.