From: none@none.com99   
      
   On 9/30/2025 12:37 PM, Snag wrote:   
   > On 9/30/2025 12:51 PM, Bob La Londe wrote:   
   >> Good Soak For Rings In an Engine That's Been Sitting A Long Time???   
   >>   
   >> When I was a kid everybody said to dump a table spoon of Marvel   
   >> Mystery Oil down each spark plug hole amd let it set for a few days to   
   >> reduce the risk of cracking a ring when you start trying to move the   
   >> engine.   
   >>   
   >>  From what I've heard and read they changed the formula of the snake   
   >> oil and is not so good anymore. I don't know.   
   >>   
   >> Yesterday I heard a new one. Dump a mix of ATF and acetone in, and put   
   >> the spark plug back so the acetone will force the ATF through the   
   >> rings with pressure as it turns to vapor. I've never heard that one   
   >> before. I have some reservations.   
   >>   
   >> I've got a 42 GPW (that was my dads) Jeep with a newer M38 Jeep engine   
   >> that eventually I'd like to sell. Its been parked for 40 years so   
   >> there will certainly be some tendency for the rings to stick. I'd   
   >> prefer to sell as is and let somebody more expert than me deal with   
   >> it, but I see no reason not to do little things to help that happen as   
   >> time permits. Eventually being able to get compression on all   
   >> cylinders might help... unless its bad of course.   
   >>   
   >> Anyway I'd like to hear what you guys know or have heard about soaking   
   >> the rings in a sitting engine before trying to turn it over.   
   >>   
   >>   
   >>   
   >   
   >    That ATF/acetone mix is known as "Ed's Red" and it works great for   
   > rusted/stuck bolts and such - some add a bit of lanolin . Have you even   
   > tried to turn the motor over ? It might surprise you , as dry as the   
   > climate is out there I doubt rust would be a problem . If it turns you   
   > can check compression for a quick read on stuck/not stuck rings .   
      
   I've been very careful not to risk turning the motor.  Even dragging it   
   on the trailer with tires that won't turn (because they are flat and   
   hard) I took it out of gear just to be safe.  I'm not in a hurry.   
   Soaking the rings for a while is not a big deal.  I was more concerned   
   with volatiles in the ATF or acetone causing other problem.  I know the   
   old formula MM was pretty much shade tree mechanic approved, but the ATF   
   and acetone was a new one on me.   
      
      
   --   
   Bob La Londe   
   CNC Molds N Stuff   
      
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