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TOPIC: How to unlock a seized engine.

How to unlock a seized engine. 5 years 3 weeks ago #324395

How to unlock a seized engine without tearing it down? i heard tranny fluid in the spark plug holes is real good,what is your opinions people?
Current bike..1977 kz1000 1075cc kit,dyna everything,lotsa chrome,kerker pipe.
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How to unlock a seized engine. 5 years 3 weeks ago #324396

  • timebomb33
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i have seen people use desiel, tranny fluid kerosene that sort of thing but you will have to take it apart anyway because most times they are seized because water got in the cylinder somehow and if that has happened then the rings will be rusted into the bores so even if you get it freed up and could make it run again the cylinders and rings will have been damaged so you will end up needing a bore job at the very least.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
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How to unlock a seized engine. 5 years 3 weeks ago #324404

  • Kawickrice
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I have a complete 903cc motor that has been seized for so long I am going to use muriatic acid to help me out.
73 Kawasaki Z1
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
73 Honda Trail 90
Tampa FL
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How to unlock a seized engine. 5 years 3 weeks ago #324409

  • MFolks
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That acid and aluminum are a very bad combination!! It will rapidly attack any aluminum it comes in contact with.

PB Blaster, Marvel Mystery oil and even used Diesel engine oil will be much safer.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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How to unlock a seized engine. 5 years 3 weeks ago #324410

  • JamesD
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How it seized would influence the manner in which it is freed.

Did it rust from sitting?
Last Edit: 5 years 3 weeks ago by JamesD.
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How to unlock a seized engine. 5 years 3 weeks ago #324413

Yeah it froze from time and being under a tarp for 10 years. It's a kz1000,will be parting it out btw.
Current bike..1977 kz1000 1075cc kit,dyna everything,lotsa chrome,kerker pipe.
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How to unlock a seized engine. 5 years 3 weeks ago #324437

  • chance
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I use trans.fluid and gas mixture and let it sit a few day before attempting to turn it over .works for me everytime. but if water got in the clys is a different story as long as the motor had carbs on and exhaust you should be good...1/2 and 1/2 with the mix..
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How to unlock a seized engine. 5 years 3 weeks ago #324485

  • bountyhunter
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PB Blaster is ofen used. I use Kroil penetrating oil to free rusted things.
1979 KZ-750 Twin
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