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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

Photo of primary cover installed on our 1973 Ironhead Harley engine - by Harley Oldschool Bobber. 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.


Photo of primary cover installed on our 1973 Ironhead Harley engine - by Harley Oldschool Bobber. Those hex style chrome inspection plugs by Colony Machine are easier to install and remove than the original slotted plugs.