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Case 444 Kohler K321 Engine Rebuild 

ACH Automotive
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Took the Kohler 14hp motor out of my Dad's Case 444 Tractors. Needs a rebuild. It has low compression. I did not see any major damage inside, which is good.
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#Case #Case444 #Tractors Disclaimer:
Due to factors beyond the control of ACH Automotive, I cannot guarantee against improper use or unauthorized modifications of this information. ACH Automotive assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ACH Automotive recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ACH Automotive, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ACH Automotive.

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21 фев 2011

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Комментарии : 14   
@StoneCam
@StoneCam 9 лет назад
14hp Kohler K321 engines used in the Case 444 have "ACR" which stands for automatic compression release. ACR will keep the valves opened until the engine spins up to 600rpm's before the valves will seat. ACR is used to help with making the engine easier to start. You cannot do a proper compression test because of this. I believe that a vacuum draw down test is about all you can do to check this type of engine.
@violetpoofable
@violetpoofable 12 лет назад
This motor has ACR (automatic compression release) and it needs to spin faster than 600rpm to get the full compression. Or tie back the ACR weights.
@jameslandon4126
@jameslandon4126 11 лет назад
The throttle lever was all the way down on your Case when you checked the compression. For accurate readings you should have put it at wide open throttle.
@ACHAutomotive
@ACHAutomotive 11 лет назад
Thanks for the info!
@ACHAutomotive
@ACHAutomotive 13 лет назад
@Nascar3244888 - Yea, there wasn't much oil in it when I opened it up. The guy my dad got it from said it had been smoking for a while. He told my dad it wasn't anything to worry about, but my dad and I know better. But he got it for a reasonable price, and the rest of the tractor was in good shape. What oil was in the motor, was really dirty.
@ACHAutomotive
@ACHAutomotive 13 лет назад
@Nascar3244888 - Cool. I'll have to try it out. My dad actually looked at the motor and found a lot of scoring in the piston and block, so it probably needs to be bored out... but I'll know more soon :)
@theAngelofhevn
@theAngelofhevn 10 лет назад
i had 10 pounds compression on my engine.. and it ran! but was hard to start and now waiting for a new piston and ill go 0.20 overbore :)
@ACHAutomotive
@ACHAutomotive 11 лет назад
Interesting! Thanks for the info!
@clockbuilderhg
@clockbuilderhg 11 лет назад
If you can wrap a rope around the sheave and crank the motor backwards it will bypass the ACR as well.
@berkmanyt
@berkmanyt 9 лет назад
Don't those engines have a compression release…so you CAN NOT do a valid compression check ? Right note per Michele below !
@ACHAutomotive
@ACHAutomotive 11 лет назад
Thanks! I didn't know... First Case 444 lol
@ACHAutomotive
@ACHAutomotive 13 лет назад
@djcatdog525 - Rings were OK, had a bad head gasket.
@deere3321
@deere3321 11 лет назад
Can't check it that way as mentioned earlier. Has an ACR. A kohler k series will knock for 30 years.
@Freddyhut
@Freddyhut 11 лет назад
Did you Make more videos on this engine tear down
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