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Farmall & IHC Tractors Discussion Forum
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Motor in F12--F14

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Marvin KY

10-11-2007 14:07:56




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What are the different in the two motors? Are the heads different? Will the valves,push rods enterchange? What would happen if I put a head off a F12 on a F14 motor? Thank you.




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Andy Motteberg

10-11-2007 14:49:04




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 Re: Motor in F12--F14 in reply to Marvin KY, 10-11-2007 14:07:56  
The F-12 and F-14 heads look the same, but they have a different part number, so they must be different. The number on a F-12 head should be 3195-D. The block is the same. The F-12 & F-14 oil pump is also different, the F-14 has a float to float on top the engine oil, it takes in cleaner oil that way. The push rods and valves will work from a F-12 to a F-14. They both use the same IHC carburetor, AC fuel pump and IHC magneto. The F-14 has a tighter governor spring so the F-14 runs at a higher RPM.

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John M

10-11-2007 17:13:19




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 Re: Motor in F12--F14 in reply to Andy Motteberg, 10-11-2007 14:49:04  
Blocks are different. 14 Blocks have a threaded hole in the side for a bolt that holds the pipe from the breather.They will interchange between the two tractors, but the right valve cover must be used.Only differences in the heads Im aware of are the gas and kerosene heads, and if I recall correctly there was a high altitude head, but I dont have my parts book in front of me at the moment.(Of course the obvious difference between the Wachashau(SP) engine.)

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ejr-IA

10-11-2007 14:38:17




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 Re: Motor in F12--F14 in reply to Marvin KY, 10-11-2007 14:07:56  
The only difference is RPM between the motors



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Fawteen

10-11-2007 14:37:27




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 Re: Motor in F12--F14 in reply to Marvin KY, 10-11-2007 14:07:56  
The only significant difference between and F12 and an F14 motor is that the governor on the F14 is turned up 200 RPM over the F12 (1650 vs. 1450, IIRC)

There are some other minor differences such as the routing of the valve cover breather, but mechanically they are identical and all parts will interchange.

I believe there are some "gas only" heads out there that will give you a little better compression than the distillate heads, but I don't have any numbers handy.

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