Engine #10 - Primary Cover
Life's a bitch... Thank God there's Harleys...
On this page you will find some pictures that T made after installation of the Primary Cover on our 1973 Harley Sportster Ironhead engine. On an Ironhead Sportster Engine, the Compensating Sprocket, Primary Chain and Clutch Unit run in an oil bath. As you might already have guessed, the Primary Cover keeps that violently splashing oil inside the engine.
Sportster Ironhead Engine with Primary Cover In Place
We had our Primary Cover powder coated in this classic blue-grey colour. To offset this oldschool colour, we replaced all nuts and bolts with the more pronounced chrome cap style nuts by Colony Machine.
Those hex style chrome inspection plugs by Colony Machine are easier to install and remove than the original slotted plugs.
Ironhead Engine Assembly Steps:
- Step 1 - Engine Case Assembly
- Step 2 - Oil Pump
- Step 3 - Cam Gears and Cover
- Step 4 - Installation of Primary Chain and Sprocket Wheels
- Step 5 - Fixing of the Compensating Sprocket
- Step 6 - Clutch Unit: Parts Cleaning and Preparations
- Step 7 - Clutch Release Disc: Installation Using Spring Compression Tool
- Step 8 - Startmotor: Cleaning and Inspection
- Step 9 - Startmotor and Bendix: Install and Test
- Step 10 - Primary Cover Back in Place
- Step 11 - Main Shaft Rollerbearing
- Step 12 - Oil Seal and Sprocket