Cummins N14 Starter

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mission_creek, Mar 23, 2021.

  1. mission_creek

    mission_creek Bobtail Member

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    Feb 22, 2021
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    Hello,
    Was curious if the starter holds back engine oil on these motors? The starter bolts wiggled loose and it seemed to be leaking oil from the back side of the starter where I can’t see. Tightened them back up and it still drips a little. Thanks
     
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  3. jsnell

    jsnell Light Load Member

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    Apr 12, 2016
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    No, the starter is dry. It is probably leaking from the cam followers. The rear one is on the block beside the starter.
     
  4. BoxCarKidd

    BoxCarKidd Road Train Member

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    Sometimes the bolts are just loose. On the cam followers that is.
     
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  5. mission_creek

    mission_creek Bobtail Member

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    Tightening these bolts won’t screw up the timing?
     
  6. BoxCarKidd

    BoxCarKidd Road Train Member

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    No sir. The bolts being loose might change it a little but they are supposed to be tight. The thickness of the gasket should not change.
    Older engines were mechanical and the thickness of the gaskets was very important for timing and each cam follower was normally a little different. The electronic N14 has a computer to compensate and all 3 rocker boxes normally have the same thickness single gasket. They are bad to work loose and leak oil so tighten them all. If they have been left unattended to long tend to yack part of the gasket out. Those leak a lot worse than you are talking about.
     
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  7. mission_creek

    mission_creek Bobtail Member

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    Feb 22, 2021
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    Yep the front cover is missing bottom bolt and the rear cover looks as if it’s leaking too but need to take the starter off for a better view. I can use lock washers for the new missing bolts I am replacing with no effect I’m guessing?
     
  8. BoxCarKidd

    BoxCarKidd Road Train Member

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    Thank you should be good with that but I have not touched one in several years. If you find one leaking around the head of the bolt and no where else put a copper flat washer on it.
    Do not worry about viewing it if you can tighten all the bolts. It will work or it won't.
     
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