New Special Tools Required
New rear crankshaft oil seal installer.
Scheme 99
Full pressure lubrication, through a full flow oil filter, is furnished by a gear type oil pump. The oil is drawn up through the pickup screen and the tube. The oil passes through the pump to the oil filter.
The oil filter is a full flow paper element unit. An oil filter bypass is used in order to ensure oil supply during the following conditions
- On a cold start
- If the filter is plugged
- If the filter develops excessive pressure drop
The bypass is designed to open at 69-83 kPa (10-12 psi).
A priority oil delivery system supplies oil first to the crankshaft journals. The oil from the crankshaft main bearings is supplied to the connecting rod bearings by intersecting the passages drilled in the crankshaft. The passages supply the oil to the crankshaft main bearings and the camshaft bearings through the intersecting vertical drilled holes. The oil passages from the camshaft journals supply oil to the hydraulic lifters, and the piston oil nozzles. The camshaft phaser is fed oil from the number 1 camshaft bearing journal.
The piston oil nozzles lubricate the pistons and cylinder walls. A not-serviceable check valve integrated into the nozzle prevents oil bleed down from the nozzle when the engine is not running.
The hydraulic lifters pump oil up through the pushrods to the rocker arms. The cast dams in the crankcase casting direct the oil that drains back from the rocker arms onto the camshaft lobes. The camshaft chain drive is lubricated by indirect oil splash.
Scheme 100
Scheme 101
Special Tools
Special Tools Illustration Tool Number/Description EN 46359 Puller End Protector EN 46745 Piston Pin Retainer Remover and Installer EN 47719 Tensioner Compressor EN 47823 Valve Spring Compressor Adapter J 5892-D Valve Spring Compressor J 6125-1B Slide Hammer with Adapter J 7872 Magnetic Base Dial Indicator J 8001 Dial Indicator Set J 8037 Ring Compressor J 8087 Cylinder Bore Gage J 8089 Carbon Removal Brush J 8520 Cam Lobe Lift Indicator J 9666 Valve Spring Tester J 21867-6 Oil Pressure Adapter Fitting J 22144 Oil Suction Pipe Installer J 22794 Spark Plug Port Adapter J 23498-A Driveshaft Inclinometer J 24270 Cylinder Bore Ridge Reamer J 25087-C Oil Pressure Tester and Pump Primer J 28428-E High Intensity Black Light Kit J 28467-B Universal Engine Support Fixture J 29113 Balancer and Crank Sprocket Puller J 33049 Camshaft Bearing Service Set J 34686 Rear Main Seal Installer J 35468 Cover Aligner and Seal Installer J 35667-A Cylinder Head Leakdown Tester J 37096 Flywheel Holder J 38722 Compression Tester J 39505 Torque Wrench Adapter J 41556 Connecting Rod Guide J 41816-A Crankshaft Balancer Remover J 43654 Piston Pin Clip Remover and Installer J 43690 Rod Bearing Clearance Checking Tool J 43690-100 Rod Bearing Clearance Checking Tool - Adapter Kit J 45059 Angle Meter J 45299 Engine Preluber
