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kubota starter issues


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#1 Guest_jdecker94_*

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Posted October 23, 2011 - 08:37 PM

so recently my kubota starter spins but doesnt kick out. so i pulled it off and watched it spin, it kicks out about 1/4 of an inch or so. and not far enough to engage the flywheel. any ideas on what could be messed up? i noticed there is no spring between the gear and the end of the starter.

#2 Cvans OFFLINE  

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Posted October 23, 2011 - 08:45 PM

See if you can download a parts diagram and go from there.

#3 Guest_jdecker94_*

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Posted October 23, 2011 - 08:59 PM

where would i find one? most diesel manuals seem to cost a good amount of money.

#4 Cvans ONLINE  

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Posted October 23, 2011 - 09:52 PM

What is the model of the engine. Or do you have the part number off of the starter?

#5 HDWildBill OFFLINE  

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Posted October 24, 2011 - 06:10 AM

Google your tractor model and there are several sites that you can look at the parts break down online. eReplacement & Searsdirect are two sites that come to mind.

Check to see if you have a full charge on the battery. Then make sure you are getting about 12v at the starter if these check out then it is probably the starter.

#6 Guest_jdecker94_*

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Posted October 24, 2011 - 06:09 PM

its a z751a i did it on 3 different batteries, one of which was the rental car while my buddy floored the gas, so im definately getting juice.

#7 HDWildBill ONLINE  

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Posted October 24, 2011 - 07:25 PM

If you are sure you have 12 volts at the starter, I would think the bendix in the starter has gone bad.

#8 Guest_jdecker94_*

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Posted October 24, 2011 - 07:47 PM

ok and what is the bendix? it worked fine a little while ago when the guy started it up for me.

#9 smasher OFFLINE  

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Posted October 24, 2011 - 07:52 PM

I belive that started has an external soleniod to engage the starter pinion id say thats most likely the problem. Remove the soleniod and check the drive for free movement, then check to see if the plunger is being pulled in with significant force.

hope this helps

#10 HDWildBill OFFLINE  

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Posted October 24, 2011 - 07:56 PM

It's the spring that helps engage the gear with the fly wheel. The Bendix company use to make them for the cars so the name stuck.

In the original post it described the starter gear is not engaging the fly wheel to turn over the motor to start. If everything checks out like voltage and the wiring then I would think that would only leave the starter being bad.

#11 Guest_jdecker94_*

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Posted October 24, 2011 - 08:01 PM

it still moves a little just not enough, and considering starters are over 100 bucks ill try ANYTHING.

#12 smasher OFFLINE  

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Posted October 24, 2011 - 08:20 PM

if the started rotates and has torque its fine, you problem is with then engagement system

#13 smasher OFFLINE  

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Posted October 24, 2011 - 08:32 PM

also i believe kubota uses nippondenso starters so you can probably cross a solenoid from a toyota or a chrysler etc. that will work in your application

#14 Alc OFFLINE  

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Posted October 24, 2011 - 08:37 PM

You might find some good info about starters and drives here
http://www.venselent...es/starters.pdf

#15 Guest_jdecker94_*

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Posted October 24, 2011 - 09:36 PM

maybe ill get a new starter solenoid, considering the PO broke it and ive got it rigged that might be part of the issue.




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