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2013 NAV CE bus Oil leaking out spinner filter
Posted to HD/Fleet Forum on 4/12/2021 9 Replies

4DRBUAAN9EB355883 Running under load oil leaks steadily out of the spinner filter. Bus shop overhauled the engine because of this. After overhaul still leaking oil. They converted to open crankcase breather. Still leaking. Brought it to me...Crankcase pressure... Login to read more.

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