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morton(pa) 
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Joined: 11 Sep 2009
Location: Lancaster, PA
Points: 1234
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 Topic: Stuck Engine/Acetone mixture?
Posted: 29 May 2010 at 12:58pm |
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I read on here in another thread a while back that some kind of acetone mixture will break engines loose real easily. Anyone have anymore information on it? Friend was asking me since he has an engine that is stuck so I thought I'd throw it out there and see what I get. Thanks.
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EricPA
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Joined: 13 Sep 2009
Location: Watsontown,PA.
Points: 2578
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Posted: 29 May 2010 at 1:19pm |
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I think it was acetone/ automatic transmission @ 50/50
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
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Posted: 29 May 2010 at 1:30pm |
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Yep
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DaveKamp
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Joined: 12 Apr 2010
Location: LeClaire, Ia
Points: 5816
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Posted: 29 May 2010 at 1:34pm |
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I use a 3-way mix of acetone, hydraulic fluid, and diesel fuel.
Depending on how long, and how bad it's stuck, I'll use different tactics, but it's always a safe move to pull the head, vaccum out any crud that's in there, get a good look at the situation. I have a handful of abrasive-entrained nylon brushes to which I've installed 10" extension rods... I put 'em in the cordless drill and give 'em a few spins up and down to clean the top side of the bores, then hit 'em with the shop-vac again so they'v e got a known-clean pathway.
I'll free, pull out, clean up, and lap the valves, pull 'em all shut, grease the head gasket, and put the head back on, but leave the rockers off, then take a set a' plugs, bust out the ceramic core, weld on some 1/8" pipe, then make a 4-way manifold for an air hose, and put a regulator on it... fill the cylinders, and put about 15psi on the cylinders... then come back every day-or-two and check the dipstick for the scent of acetone. Once it starts to move a little, I'll turn it 'till it stops, and resume the soaking... eventually, it'll saturate the problem area.
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Dave(inMA)
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Joined: 12 Sep 2009
Location: Grafton, MA
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Posted: 29 May 2010 at 2:47pm |
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Dave - that's quite a system! I'll have to try it one of these days.
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WC, CA, D14, WD45
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DaveKamp
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Joined: 12 Apr 2010
Location: LeClaire, Ia
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Posted: 30 May 2010 at 9:24am |
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Works well. I've only had a few that it didn't break free quickly... one was an antique outboard motor that had no head (all one piece) and was totally unobtanium, so the only option was to employ patience. It sat under pressure for better part of 9 months (it just sat on a bench in the barn, with hose on it). Every so often, I'd disconnect the line, pull the plug, dump it out, and rinse it with an aerosol tube oil. More crud would come out... when done, I'd try to work the piston/rod with my hands (no hammer!), then set it up again, and walk away for a few weeks. Eventually, the piston started to wiggle... and the Caille Liberty is running again.
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