What makes a gasket fail on a Harley 1200?
The two-piece, aluminum rocker-box cover assembly in the 1200 houses the rocker arms, valve stems and upper pushrod ends. High mileage and extreme conditions cause the gaskets in the rocker boxes to fail and create a potentially serious oil leak. Place the fire extinguisher close at hand.
How do you replace a rocker box gasket on a Harley?
Discard the used sealing washers and the rubber rocker box seal. Place the transmission in first gear with the shift lever. Rotate the rear wheel forward, by hand, until both valves on the rear cylinder are closed. Remove the two small screws on the spark plug side of the rocker box with a wrench. Remove the three bolts and washers with a wrench.
What kind of engine does a Harley Davidson Sportster 1200 have?
The latest incarnation of the Custom throws out a fairly thick front end with a 130mm front tire and 39mm fork to accompany the tried-and-true 1,202cc, air-cooled, overhead-valve Evolution engine, which put out 57.8 hp and 66.8 pound-feet of torque on our dyno last year.
How do you remove head gaskets on a Harley Davidson?
You are now stripped down to the heads. You will need a 1/2″ 12 point socket to loosen your head bolts. Break them free with one sharp motion; then continue to loosen evenly in a cross pattern. Lift off your heads and remove the old head gaskets.
You are now stripped down to the heads. You will need a 1/2″ 12 point socket to loosen your head bolts. Break them free with one sharp motion; then continue to loosen evenly in a cross pattern. Lift off your heads and remove the old head gaskets.
The two-piece, aluminum rocker-box cover assembly in the 1200 houses the rocker arms, valve stems and upper pushrod ends. High mileage and extreme conditions cause the gaskets in the rocker boxes to fail and create a potentially serious oil leak. Place the fire extinguisher close at hand.
Discard the used sealing washers and the rubber rocker box seal. Place the transmission in first gear with the shift lever. Rotate the rear wheel forward, by hand, until both valves on the rear cylinder are closed. Remove the two small screws on the spark plug side of the rocker box with a wrench. Remove the three bolts and washers with a wrench.
What’s the difference between 1986 and 1987 Sportster heads?
So you have to take a whole different approach depending on which generation of 1200 you have. And on top of that, the 1986-1987 heads are a different animal yet. By comparison, 883 heads have pretty much the same performance capability from 1986 to present.