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  #1  
Old 11-06-2015, 07:56 PM
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inboardnut inboardnut is offline
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Default 1772 ..New fuel pump.. hard cold start?

I just installed a new Kubota fuel pump on my 1772. Now the tractor is very hard to start when its been setting. Once it does start and warms up, you can turn it off and it will re-start easily. Before old fuel pump crapped out, it always started fine.

Any idea what is up?
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Old 11-06-2015, 08:05 PM
J-Mech J-Mech is offline
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Bad spark plugs.



Are the glow plugs working? Before you say yes, are you sure? Are they getting 12V?

Do you have a fuel restriction? Are you sure?
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  #3  
Old 11-06-2015, 08:38 PM
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Shrewcub Shrewcub is offline
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Quote:
Originally Posted by J-Mech View Post
Bad spark plugs.



Are the glow plugs working? Before you say yes, are you sure? Are they getting 12V?

Do you have a fuel restriction? Are you sure?
All possibilities, except the spark plugs! Did you bleed the injectors?
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  #4  
Old 11-06-2015, 08:50 PM
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inboardnut inboardnut is offline
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Quote:
Originally Posted by J-Mech View Post
Bad spark plugs.



Are the glow plugs working? Before you say yes, are you sure? Are they getting 12V?

Do you have a fuel restriction? Are you sure?
Wow...Thanks for the suggestion...I think I just found the problem. I had checked fuel delivery when I installed the new pump and it was good.

I did the glow plug upgrade a year or two ago. I just checked voltage and have 12.6 volts on the battery side of the solenoid, but only 4 to 5 volts on the load/glow plug side. I ran a jumper across the solenoid terminals to get the full voltage to the glow plugs and she started right up!!!

Dont think I have ever seen a low voltage situation on a solenoid. .. thought it either worked or not. Guess its time for another new solenoid.

Thanks for the info!!!
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  #5  
Old 11-06-2015, 08:53 PM
J-Mech J-Mech is offline
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Dont think I have ever seen a low voltage situation on a solenoid. .. thought it either worked or not. Guess its time for another new solenoid.

Thanks for the info!!!

There is a big contact plate in the solenoid. It can arc on it, making the contact point have a poor connection. Seen it many times. Glad you got it!!
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  #6  
Old 11-06-2015, 09:20 PM
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There is a big contact plate in the solenoid. It can arc on it, making the contact point have a poor connection. Seen it many times. Glad you got it!!

I see the "almost new" solenoid has a Made in China sticker on it....go figure...
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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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