Removing perservative film from engine

[Go Time]

I got an engine to rebuild that the previous owner sprayed with a coating to prevent water intrusion/corrosion. Its put like a wax buid-up on all the components and block. Anyone know of a solvent that breaks this stuff down. Everything I've used (parts cleaner, carb cleaner, etc.) required a lot of scrubbing and ist impossible to get off electrical connectors and stuff with crevices. This crap is a bear to get off....its gonna take a month just to clean parts :nonod:

[mn808gade]

"Superclean" cleaner-degreaser.walmart/fleet farm/most auto stores

[Go Time]

Thanks I'll try a can...is it an erosol?

[mn808gade]

spray bottle w/gallon /2.5 gallon refill. spray on, rub w/ 2" paint brush, hose off.hope this will cut it-th

[Dave Strong]

Superclean is pretty corrosive stuff.

Dave

[Go Time]

Tried the Superclean and it was less affective than the carb cleaner. This film is almost like a wax and is tuff to disolve. I guess I'm just going to have to use the elbow grease.

[mackeral5]

I had an old saltwater Yamaha that the previous owner had used a similar product on, I never found a chemical that would remove the film. It was almost like wax.....I did find that a heat gun softened it up so less elbow grease was required to remove it....

[HStream1]

Sounds like he used cosmoline to preserve it. Kerosene/diesel fuel works well on Cosmoline especially around delicate parts and areas. But lacquer thinner is the cats meow if you're not worried about ruining electrical pieces. Another method is boiling water. If you google cosmoline remover there is a specific product for it. BUT!!! IT's EXPENSIVE!!!

[pointer]

This would be "Corrosion Guard" - silicone spray?

pointer

[vnemous]

This would be "Corrosion Guard" - silicone spray?

pointer

Thats what it sounds like. Looks yellow and waxy after lots of applications. I use CRC 656 or wd

[Go Time]

Yeah, I guess the stuff works well at preventing corrosion, but it is a pain in the a$$ to get off....I don't want to use anything that will degrade the plastic electrical components. Was hoping the was a magic bullet, but I guess its gonna have to be done old school.

[XstreamVking]

Try some regular e-10 gas.

[flabum1017]

since you are going to rebuild it, take it all apart and deal withe each component separately. the block can be stripped at a machine shop, carbs and stuff can be done either with some caustic stuff like engine tuner or in a hydrosonic cleaner and the electrical can be left as is if it's all in good shape.

[2.5-21]

Try soaking it with WD-40 or CRC you would be surprised at what will actually work

[kingsbiship]

How about a power washer.... like 200 PSI?

[Todd D]

Try some regular e-10 gas.

:eek:

[Go Time]

I have been tearing the engine down and cleaning each component in the parts cleaner and with carb cleaner and a tooth brush (I'm sure the wife won't mind). It's a pain but its working. The electrical components concern me the most. I don't want any solvents to penetrate the connectors and cause problems down the road so I'm being very careful with them.

[fairwindracing]

our local speed machine shop uses dawn dish soap and elbow grease its very safe to any outher parts (seals,bushings,and hands) finish with wd40 then wipe with fogging oil