Suzuki XL7 2007 Service Manual page 716

1E-3 Engine Lubrication System:
CAUTION
!
Special new tool EN 47971 must be used. Due
to the special size and thread pitch of the oil
filter adapter fitting ensure the proper tool is
used or component damage will result.
7. Install the EN-47971 onto the oil filter adapter.
8. Install the 1/8 NPT fitting from the J 21867 into the
port on the EN-47971.
9. Install the J 21867 flexible hose to the EN-47971.
10. Run the engine and measure the engine oil
pressure.
11. Compare the readings to "Engine Mechanical
Specifications: ".
12. If the engine oil pressure is below specifications,
inspect the engine for 1 or more of the following
conditions:
– Oil pump worn or dirty. Refer to "Oil Pump
Replacement", "Oil Pump Disassemble" and "Oil
Pump Cleaning and Inspection".
– Oil pump-to-engine block bolts loose. Refer to "Oil
Pump Replacement".
– Oil pump screen loose, plugged, or damaged.
Refer to "Oil Pump Suction Pipe and Screen
Assembly Replacement" and "Oil Pump Pipe and
Screen Cleaning and Inspection".
– Oil pump screen O-ring seal missing or damaged.
Refer to "Oil Pump Suction Pipe and Screen
Assembly Replacement" and "Oil Pump Pipe and
Screen Cleaning and Inspection".
– Oil pump pressure relief valve malfunction. Refer
to "Oil Pump Replacement".
– Engine bearing clearance excessive. Refer to
"Crankshaft and Bearings Cleaning and
Inspection: ", "Crankshaft and Bearings
Installation: " and "Piston, Connecting Rod, and
Bearing Installation: ".
– Cracked, porous, or restricted oil galleries.
– Oil gallery plugs missing or incorrectly installed.
Refer to "Engine Block Assemble: " and "Cylinder
Head Assemble: ".
– Valve lifters broken. Repair, as necessary. Refer
to "Valve Lifter Replacement - Left Side: " and/or
"Valve Lifter Replacement - Right Side: " and
"Valve Lifters Cleaning and Inspection: ".