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Engine basics => Engine set up tips => Topic started by: frank mccune on April 07, 2015, 06:43:18 PM

Title: What will remove old castor oil from an engine?
Post by: frank mccune on April 07, 2015, 06:43:18 PM

      Hi All:

      I need to clean some engines that have old castor oil 4 decades, on and in them.  What will remove this varnish?  How about paint stripper, oven cleaner or?????

                                                                                  Tia,

                                                                                 Frank McCune

Title: Re: What will remove old castor oil from an engine?
Post by: Bud Morrison on April 07, 2015, 06:56:53 PM

http://brodak.com/demon-clean.html

Title: Re: What will remove old castor oil from an engine?
Post by: RandySmith on April 07, 2015, 07:08:25 PM

Quote from: frank mccune on April 07, 2015, 06:43:18 PM

      Hi All:

      I need to clean some engines that have old castor oil 4 decades, on and in them.  What will remove this varnish?  How about paint stripper, oven cleaner or?????

                                                                                  Tia,

                                                                                 Frank McCune

Berrymans  Carb cleaner in the gallon dip bucket, or antifreeze in a crock pot will do the trick

Randy

Title: Re: What will remove old castor oil from an engine?
Post by: Gerald Arana on April 07, 2015, 07:49:08 PM

Whatever you do, do not use anything with ammonia in it. It will turn the engine black.........don't ask me how I know.  ::)

Crock pot is best, IMHO. (Not so humble.)  LL~ LL~ LL~

Jerry

Title: Re: What will remove old castor oil from an engine?
Post by: Brett Buck on April 07, 2015, 10:32:48 PM

Quote from: frank mccune on April 07, 2015, 06:43:18 PM

      Hi All:

      I need to clean some engines that have old castor oil 4 decades, on and in them.  What will remove this varnish?  How about paint stripper, oven cleaner or????

    No caustic chemicals!  Crock pot with plain old green Prestone anti-freeze is the gold standard. It's as close to a miracle cure as I have seen in my 40+years.

     Brett

Title: Re: What will remove old castor oil from an engine?
Post by: Gene O'Keefe on April 08, 2015, 08:08:22 AM

Sounds simple but remember to remove any plastic parts & o-rings & gaskets before the crock pot - the antifreeze will destroy them.