STUCK ENGINE - WHAT TO DO |
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jeffb
Member Joined: 17 Sep. 2011 Location: South Dakota Status: Offline Points: 18 |
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Posted: 18 Sep. 2011 at 12:36pm |
Had a 48 in high school. I'm now almost 60 and finally bought another good ol Jeep - a 51. the motor is a flathead and is stuck. have the head and pan off, appears some water or condensating in the cylinders. working on getting it free. appreciate your thoughts - forget this motor or is it worth the money to have overhauled. Thank you for your thoughts jeffb
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Joe Frazer
Member Joined: 15 Mar. 2008 Location: Somerset, PA Status: Offline Points: 788 |
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If the block itself is in good shape I would think it would be a fine candidate for an overhaul. If
done correctly, a rebuilt engine will last years and provide you will excellent service and good times. I'm always amazed by the number of people that will cut corners on that part of a restoration and then must deal with letdowns and aggravations as a result! Take your time and
research engine shops in your area. Find out who works with older engines and knows them - really liking them isn't a bad plus either of course! Don't be afraid to to talk to local old car club
chapters etc. too as they know generally who is who and where best to go.
Best of luck with your new find!
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Collecting any/all Kaiser/Frazer/JEEP literature/handouts/toys etc.
46 CJ2A 50 Jeepster 51 Pick-up 54 Willys Aero Hardtop 54 Kaiser Willys Darrin 56 Wagon 56 Factory Proto-type FC 170 Truck |
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rocketeer
Member Sponsor Member Joined: 26 June 2008 Location: Lehighton, PA Status: Offline Points: 3473 |
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Carlsjeep
Member Joined: 15 Jan. 2011 Location: Taylorsville Ky Status: Offline Points: 2642 |
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Fill the cylinders with white vinegar and let it soak for a day. Then try to turn it gently a few times each day. You can use a 2x4 to tap on the top of each piston but don't get carried away with pounding on the piston. It should free up unless it is severely rusted.
If the valves are stuck they need to have vinegar also. Don't force anything.
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Oggie
Member Joined: 15 Jan. 2011 Location: McKinney, TX Status: Offline Points: 29 |
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I've heard transmission fluid will work - can anyone confirm?
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munkjeep
Member Joined: 01 July 2008 Location: Central, KY Status: Offline Points: 322 |
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I like a 50/50 mix of Automatic Transmission Fluid and Brake Fluid .
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F Bill
Member Sponsor Member x 2 Joined: 05 Dec. 2005 Location: central Texas Status: Offline Points: 7752 |
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ATF and turpentine , 50/50 has worked for me. ALso it has not worked too..lol.
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If you haven't checked out the tech FAQ section, go to:
http://www.thecj2apage.com/forums/tech-faq_forum57.html for a lot of great stuff you need to know!! |
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GaryArf
Member Sponsor Member Joined: 21 July 2005 Location: Baxter MN Status: Offline Points: 3905 |
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The best way to get these unstuck with mininal damage is to dissassemble it one componant at a time. if the piston is stuck more than likely it isn't alone. Hopefully this engine is out of the Jeep and the flywheel is removed as it's ALOT easier. Drop the pan and dissconect all the crank bearing caps and remove the crank. Remove all the valve springs and remove the valves. Now you can work with each piston/valve individually. Also work the lifters that are down to make sure they are free. if you can't turn the cam over you may have to remove the distributor...
Don't get too exited and lube everything you can. I like the brakefluid/tranny fluid idea. I had a SuperSonic that was froze up..I mean EVERY component was frozen. I beat the pistons out through the bottom with a modified 4x4. I worked at it for about a week getting everything unstuck and only broke one piston. I honed the cylinders (they were FAR from perfect) I got some used rings and a used piston out of my pile of parts and reassebled the whole engine just to see if it would run. I had that engine in my plow Jeep for two years while I rebuilt the original plow Jeeps engine, oil pressure was 60 pds cold and never went below 20 no matter how much snow I pushed. She smoked a might but DAMN, that engine ran great. It's still my spare...Come to think of it I should go out and roll it over so it doesn't freeze up again.
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CJ2A #10021 #34692 #58500
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harve
Member Joined: 02 Sep. 2011 Status: Offline Points: 63 |
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PB BLASTER AWESOME STUFF, just give it some time to work its way down.
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Jim Bow
Member Joined: 26 Sep. 2005 Location: Portland, OR Status: Offline Points: 134 |
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PB Blaster or Kroil worked for me in the past on an old Chev 6.
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all4jpn
Member Joined: 10 Sep. 2006 Location: f-burg,VA Status: Offline Points: 1778 |
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search under my posts....it'll give ya some options if you tear it down..if leaving it whole id suggest atf/acetone....and time....but if super stuck all the atf/acetone soaking will lead to hitting hammer to wood, and either it comes loose, or tear the teeth off the timing gear.(because once the bottom end is loose,,usually the cam/valves wont...but search under my posts.(electrolysis and unsticking engine threads)
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46 cj/06 lj/ and mb/2a/38 hybrid project
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R Qualls
Member Joined: 27 Feb. 2011 Location: Western NC Status: Offline Points: 447 |
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I poured marvel mystery oil in cylinders, let it sit for a day, then hooked it behind my other jeep.
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1946 cj-2A x2, 1951 M38
1954 cj-3B converted to a MB 1955 m38a1 * NRA LIFE MEMBER * |
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