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Cummins N14 STC, Celect, Celect Plus – Service Manual Lubricating Oil in the Fuel

Symptom Tree  t101

This is symptom tree
Cause Correction

STC oil control valve barrel o-rings are missing, hardened or cut; retaining ring is missing; barrel and plunger class fit is excessive

Remove the STC valve and inspect the barrel o-rings, check for a retaining ring, and inspect for excessive wear. Refer to Procedure 006-037 in Section 6.
 

STC oil control valve plumbing is not correct

Check the STC valve plumbing. Refer to Procedure 006-037 in Section 6.
 
Last Modified:  18-Jan-2012
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