{Stus-List} Diesel leak at secondary filter housing - 3GM30F

John and Maryann Read johnpread at comcast.net
Mon Jun 1 07:37:27 EDT 2009


David

Are you referring to the filter mounted on the engine that is hard to get at
and has several proud surfaces?

My mechanic recommended install hand tight, then a gentle tap with a hammer
to a screwdriver placed against the holding nut indentation.  Works like a
charm

John & Maryann Read

  -----Original Message-----
  From: cnc-list-bounces at cnc-list.com
[mailto:cnc-list-bounces at cnc-list.com]On Behalf Of David Blair
  Sent: Monday, June 01, 2009 12:10 AM
  To: cnc-list at cnc-list.com
  Subject: {Stus-List} Diesel leak at secondary filter housing - 3GM30F


  Has anyone experienced the tightening ring on the secondary filter housing
working itself lose after 2 or 3 hours of running time? After the first
episode(which was after a filter change and bleeding) and getting back to
the dock a qualified mechanic checked and reinstalled the filter, etc again.
Seemed good, but 3 running hours later its worked itself loose again, more
diesel in the bilge.. Threads look good (ie: don't appear stripped), Yanmar
authentic filter element carefully centred and ring threaded fully up and
hand tight, etc.

  Any suggestions?
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