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  #21  
Old 09-08-2014, 11:02 AM
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olds45512 olds45512 is offline
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Originally Posted by J-Mech View Post


NOTE: It takes more compression to start a motor, than it does to run one. If you can get them started, they will run with pretty low compression. Not well, but a motor will run.
That's why a lot of old ford tractors were converted from 6v to 12v, the engines were to wore out to start on 6v so they convert them to 12v so it builds compression faster.
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  #22  
Old 09-08-2014, 11:26 AM
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CADplans CADplans is offline
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A stuck exhaust valve that sticks due to heat usually unsticks the INSTANT the engine quits, so the symptom is not seen when cranking the starter.

On my 149, simply reducing the forward speed while plowing snow, just a little, was enough to reduce the problem so that the machine would then begin to have full power.

The spring that is trying to close the valve is VERY powerful, it does not take much to change the symptom,,,,
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  #23  
Old 09-08-2014, 11:35 AM
J-Mech J-Mech is offline
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A stuck exhaust valve that sticks due to heat usually unsticks the INSTANT the engine quits, so the symptom is not seen when cranking the starter.

On my 149, simply reducing the forward speed while plowing snow, just a little, was enough to reduce the problem so that the machine would then begin to have full power.

The spring that is trying to close the valve is VERY powerful, it does not take much to change the symptom,,,,
I agree!

Most of the time you can pull the valve, clean it and the guide well with a brass brush. Problem solved!

On the 6V-12V conversion thing, RIGHT ON, Tim!
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  #24  
Old 09-08-2014, 05:49 PM
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I agree!

Most of the time you can pull the valve, clean it and the guide well with a brass brush. Problem solved!

On the 6V-12V conversion thing, RIGHT ON, Tim!
Exactly! Clean that sucker and get back to using it! I still hold to using Low Ash oil to prevent it from happening. I tried it, and it hasn't happened since. I read an article about it in Red Power a long time ago on the Yellow and White section.
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  #25  
Old 09-08-2014, 07:48 PM
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Sorry to hear about the cub issues. Sometimes when it rains it pours. Keep trying, you'll get it going in the right direction.
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

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