For really nasty gunky parts, especially those with a
cement-like crust of road dust and dried grease,
Easy-Off Heavy-Duty Original Oven Cleaner (in the
yellow spray can) works better than anything else I
have ever tried.
On my '31 Model A, I had many engine and drivetrain
parts with that crust on them. I tried soaking some
in a kerosene-based parts cleaner for 3 months, and it
had no effect. I tried boiling some in a 50/50
water/Simple Green solution, and it had little effect.
But the oven cleaner melted the crud in a few hours.
One big catch: It WILL remove any paint.
Also, accept no substitute. I tried the supermarket
house brand, and it barely worked.
--- David Scheidt <firstname.lastname@example.org> wrote:
> They tend to need heat to work well. If you can
> keep a tank at 120F
> or so, plain old dishwasher detergent (the powered
> stuff you put in
> the machine) and water do a fine job, better than
> mineral spirits.
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