Pre-oil Procedures
[ 1 ] Pre-oiling with a Pressure Pot is the preferred method.
[ 2 ] When a Pressure Pot is not available, follow this alternate method.
Alternate Pre-oiling Method Direct Drive Engines - IO-520 & TSIO-520
• Prop hazard - remain clear of Propeller
• Prepare Airplane
Brakes - On Chocks - In Place Mags - Off Throttle and Fuel - Off Engine - Installed with Propeller Dry Vacuum Pump - Remove Spark Plugs - Remove Top Row Oil - fill engine (10 Quarts ) Oil Filter - Remove
• Oil Filter Adapter

Fill cavity next to filter stud with engine oil. ( Figure 1. ) Rotate propeller by Hand - 1/3 rd revolution opposite normal rotation. Refill cavity next to filter stud. Oil Filter - Install and Safety Airplane - Prepare for motoring engineFill cavity next to filter stud with engine oil.
	Figure 1.

• Establish Oil Pressure Indication

Master Switch - On Mags, Throttle and Fuel - Off Starter - Engage [No more than 30 seconds with 3 minute cool down] Repeat as need Oil Pressure Gauge - Watch for first needle flicker indicating movement. Starter Switch - Off

• Normal Start

Prepare engine for normal start.

• Note:

Once in service, bleeding the oil line from the engine to the oil pressure gauge at the fitting will help the gauge show real time pressure much quicker. While running the engine, have an assistant catch the residual oil in a cup at the gauge end. Dispose of properly.