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Question- Dis i use the wrong storage oil?

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Question- Dis i use the wrong storage oil?

Old 04-12-2021, 06:56 PM
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Default Question- Dis i use the wrong storage oil?

hello. i stored approximately 35 rc engines of various manufacturers such as OS , Magnum , Saito , Thunder Tiger , Super Tiger, etc. in a dry locker for the past two years. Absolutely no moisture at all.
i stored these engines with a-lot of Marvel Mystery oil inside the carburetors and crank case. Today i took them out of storage and most all the carburetors were seized and the crank turns very gummy.
What did i do wrong?
i though Marvel (MMO) was the way to go for storage. ???
Any help would be appreciated. Thank You 😊
what is the best way to clean them up. i think i should heat up the case to about 150 degrees and let the solidified MMO run out. ??
Old 04-13-2021, 05:02 AM
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Just dribble fuel in them first. That usually works well for me. Only a couple times I used heat. Once the carb moves just a bit, it will free up quickly. Just try not to force it too hard.
Old 04-13-2021, 06:27 AM
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That is the oil I use when storing engines. I use my covering heat gun to warm the engine up to free a sticky engine.
Old 04-13-2021, 05:52 PM
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in my younger years, as he stood there showing me a set of locked-up Chevy roller rockers a machinist told me to never store bearings with MM

I use ATF, some one said it eats Orings, but I have not seen it yet

sorry for the edit

Last edited by the Wasp; 04-13-2021 at 05:56 PM.
Old 05-22-2021, 07:07 PM
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I have used air tool oil for years. The brand I use is Marvel.
Old 05-25-2021, 07:31 AM
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ATF oil !

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