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Allis Chalmers Discussion Forum
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Re: Allis Chalmers b please help

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Author  [Modern View]

12-19-2012 16:15:06

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One can not tell for sure that the valves are closing all the way just by looking at them. Only way to know for sure what is going on is a compression check and I'll stick to what I said you have low compression BTDT and I do many tractor that are fence row machines and bring them back to life and that is why I have had 30 plus tractors

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12-19-2012 17:52:36

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 Re: Allis Chalmers b please help in reply to old, 12-19-2012 16:15:06  
I see...good to there anything i can do to ensure they are working properly?

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12-19-2012 19:42:24

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 Re: Allis Chalmers b please help in reply to jeff-h01, 12-19-2012 17:52:36  
Remove all 4 plugs and turn the engine over with your thumb in the plug hole, 1 cylinder at a time. You should feel compression and air pushing out of each hole. If you have this, then you have some compression. Do the the Automatic tranmission luid 9ATF)thing as Old has told you. Don't rush it, it doesn't always happen over night. Squirt gas into each cylinder, reinstall the plugs and attempt to start it. To check timing, put your thumb in plug #1 hole (closest to the radiator) and crank the engine until you feel air coming out, then use a 12" long wire and put into the hole,on top of the piston, and crank until the piston comes to the top of the cylinder. Remove the 2 screws from the front of the mag and look at the position of the rotor. It should point to the timing lug at about 11:00.If it points elsewhere, your timing is off and must be reset by removing the 4 screws on the mag cover and reseting the gears. LOL Bob

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12-19-2012 18:46:47

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 Re: Allis Chalmers b please help in reply to jeff-h01, 12-19-2012 17:52:36  
A good start is doing a compression test then go from there.

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12-19-2012 20:04:04

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 Re: Allis Chalmers b please help in reply to old, 12-19-2012 18:46:47  
Ok thanks..i have a tester what should the pressure be

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12-19-2012 20:46:36

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 Re: Allis Chalmers b please help in reply to jeff-h01, 12-19-2012 20:04:04  
On most engines 90psi is bear bones min that you want

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12-20-2012 04:45:52

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 Re: Allis Chalmers b please help in reply to old, 12-19-2012 20:46:36  
Ok thanks

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