Leaking CAV pump

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Capt. Rich

Newbie
Joined
Dec 2, 2012
Messages
1
Location
United States
Vessel Name
Delicate Balance
Vessel Make
Marine Trader 50ft. Widebody
I have 2 Lehman 275 SP diesels. I noticed a leak at the top of the CAV pump, where the injector tube nut is attached. It is not at this union but at the base where the ribbed fitting is. I tried tightening this ribbed fitting but it would not move. Is a gasket or seal shot?
 
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