N14 Celect fuel leak

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Aug 8, 2020.

  1. mile marker 27

    mile marker 27 Light Load Member

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    E3F118D5-90F9-4C71-9F69-9E4C1A9E793F.jpeg AE954A71-4FC1-4DE1-84F0-F677DD3E0670.jpeg Today I noticed a small drip from the fuel pump. It appears to be coming from the plate on the rear of the pump, down low. What might the issue be?
     
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  3. mile marker 27

    mile marker 27 Light Load Member

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    It drips about, 1 drip every 15 seconds.
     
  4. mile marker 27

    mile marker 27 Light Load Member

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    8891E6C4-9179-4BF5-A48F-24566040E73B.jpeg I crawled underneath and saw an Allen screw that I’m sure has a rubber or copper gasket on it. I’m thinking it’s coming from it but not sure.
     
  5. stillwurkin

    stillwurkin Road Train Member

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    My first idea is to check and see if the bolts are tight.? Has it been apart lately?..or worked on there?
     
  6. mile marker 27

    mile marker 27 Light Load Member

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    Not since I’ve owned it but that’s only been 8 months. I’ll check it though.
     
  7. mile marker 27

    mile marker 27 Light Load Member

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    Did notice it’s been a tad slower to start on initial start up. That being said, before I could just barely bump the key, in any weather and it’d start and run perfectly smooth.
     
  8. BoxCarKidd

    BoxCarKidd Road Train Member

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    That plate with four bolts around it is a pulsation damper. Probably just dried up o-rings. There is a diaphragm in there also. Easy work even if you have to pull the pump. Replace anything that could leak while you are there.
    They say the change to ultra low sulfur fuel has nothing to do with this. These type problems have been very common to me the last year.
     
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