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  #1  
Old 11-23-2014, 12:51 PM
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Tacosteelersman Tacosteelersman is offline
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Default 1512 diesel not running right. Fixed

My cub was running great but the other day.....

Symptoms.....
Bogging down, stall while operating, start right back up, stall after a few minutes of running, skip so to speak just before dieing again, any added throdle would kill it faster, inconsistent run times before stalling, sight glass fuel filter was not filling all the way.

What I did to trouble shoot.....
Pulled fuel return out of the top of the tank NO FUEL CIRCULATION. I KNOW IT IS A FUEL PROBLEM. Drained fuel tank, filled with fresh fuel. Pulled fuel line off before electric pump had good flow. Pulled fuel line off after electric pump had what I thought was weak flow replaced electric fuel pump did not fix my problem. Bled fuel lines again not it.

Fixed problem...
Removed fuel line before high pressure pump, bad fuel flow there but clean filters. Turned out the fuel shut off on the sight glass filter was not turning on all the way even though the lever was making the full quarter turn. I noticed it didn't have any resistance while turning the lever, I turned it to on and rapped on it with a wrench a few times problem solved.

I just wanted to share my story.
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Old 11-23-2014, 05:21 PM
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Nice troubleshooting Tacosteelersman
Good information to have, Thanks.
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Old 11-23-2014, 06:10 PM
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Good fix, glad it wasn't something big.
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Old 11-24-2014, 04:10 AM
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It's just one of those things that is out of the ordinary, figured why not share it.
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Old 11-24-2014, 09:40 AM
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Just goes to show that sledge hammer maintenance really does work on occasion.
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Old 11-24-2014, 11:32 AM
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Lol. That's too funny sledge hammer maintence. I am waiting on a new sight glass filter body.
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Old 12-21-2014, 05:22 PM
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Quote:
Originally Posted by Tacosteelersman View Post
It's just one of those things that is out of the ordinary, figured why not share it.
I just had this same problem and was preparing to order a new fuel pump! I had just shut off the fuel with that lever prior to the bogging and stalling. Now I have a place to look!

Thank you so much for this post!
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Old 12-21-2014, 09:26 PM
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Since this post I have installed a new sight glass filter housing, and the 1512 runs great. I would suggest to you to remove the fuel line in various spots including before your electric pump, after the pump with key forward, and after the housing. Fuel blockage can occure anywhere along the line. A dark pic for u. This is the new housing next to the old one that can be seen on the right. One of the first things I noticed about the new housing is the shut off valve is being held in place by straps. Looks like a better set up to me.
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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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