[SEL] Penetrating oil

[Tony & Jackie]

Mark,
I think naphtha would probably eat the paint too.  I think lighter 
fluid or kerosene would be a good alternative.

I've used ATF and diesel fuel as a penetrant before.  Had an old 
two-stroke Detroit Diesel that had been sitting for years with the 
piston ports uncovered and it froze up tight.  I filled the cylinders 
with the diesel ATF mix and let it sit for about a week.  Put a big 
breaker bar on the crank and she popped loose with a little effort.

-Tony



At 07:14 PM 4/9/2009, you wrote:
>Since acetone is so harsh on paint and we would not want to use the
>ATF-Acetone combination on an engine with original paint we may be
>trying to preserve,  I wonder if we substituted Naptha or lighter
>fluid for the Acetone if that would affect the penetrating rust
>breaking characteristics. It would still thin it down. The ATF would
>still have its natural tendencies to creep.  And the Naptha would
>eventually evaporate for the most part like the acetone, just not as
>quickly. And leave most paints largely unmolested.    Mark