7505 Karl May Drive • Waco Regional Airport • P.O. Box 5219 • Waco, TX 76708
Phone: (254) 752-8381 • Fax: (254) 752-3307 • www.ramaircraft.com


ENGINES • PARTS • PROPELLERS • ACCESSORIES • STC'S
   
 
2 - PARTS CATALOG
3 - ENGINES
4 - ONE ENGINE - SHIPPED
5 - ONE ENGINE - INSTALLED
18 - CUSTOMER SERVICE
24 - CONTACT INFORMATION
25 - PRIVACY POLICY
Pre-Oil Procedures:
CMI IO-520 & TSIO-520 Direct Drive Engines

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.
 
 
 
RAM Aircraft, LP • 7505 Karl May Drive • P.O. Box 5219 • Waco, TX 76708
Phone: (254) 752-8381 • Fax: (254) 752-3307 • www.ramaircraft.com