While the filter housing is out, I'm cleaning the last of the ratnest soup out of the valley.
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OASIS 3820 1994-2003 VARIOUS VEHICLES - ENGINE - 7.3L - EXTERNAL OIL LEAK DIAGNOSIS

THE VALLEY IN THE TOP OF THE CRANKCASE HAS A DRAIN HOLE MACHINED SLIGHTLY TO THE RIGHT OF CENTER AT THE REAR. ANY LEAK IN THE "VEE" OF THE ENGINE COULD RESULT IN A DRIPPAGE DOWN THE BACK OF THE ENGINE. THIS LEAK COULD BE PERCEIVED AS AN OIL LEAK IN THE REAR OF THE ENGINE INCLUDING, BUT NOT LIMITED TO, THE REAR MAIN CRANKSHAFT SEAL AND OIL PAN GASKET. SEE TSB 02-20-04 ON OASIS AND QCDEALER.COM FOR DETAILS.

Owner caption August 2020 · Photo 97 of 196