Thread: Large bubble in fuel line. Concern?
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Old 03-08-2007, 12:11 PM
TMAllison TMAllison is offline
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
Tom - The line leading from the fuel heater/thermo to the pre-filter should drain back at shutdown. Thats normal.

If air is present while running one of those two orings or the pre-filter oring are leaking.
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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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