How To Change Fluids In Twin Cam 88

How to Change the 3 Oil Compartments on the Harley Davidson Twin Cam Motorcycle

by Chris Gilliland

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As the possessor of a Twin Cam 88-powered Harley-Davidson motorcycle, information technology is your chore to ensure that the engine, primary clutch arrangement and transmission receives regular fluid changes. Different a unit of measurement-construction motorbike, which combines its engine and transmission into one assembly that uses a single type of oil, Harley's Twin Cam engine is a carve up item from the manual and clutch. Each system uses its own oil blazon that needs replacement every 2,500 miles.

Stride one

Warm up your Harley-Davidson motorcycle to bring its fluids to operating temperature. Start the motor and let information technology idle for at least 3 minutes, then turn the motorbike off. Let the oil settle for some other 5 minutes.

Step two

Unscrew the engine oil bleed plug with a v/8-inch socket and a socket wrench. On Softail models the engine oil drain plug is nether the correct side of the motorcycle's frame, virtually the rear wheel. Dyna and Touring models accept their oil drain plugs nether the transmission housing. Drain the engine oil into an oil pan. Replace the drain plug'southward O-ring, and then screw information technology into place after the oil has drained. Tighten the bleed plug to 18 human foot-pounds with a torque wrench.

Step iii

Unscrew the oil filter from the front of the engine, using an oil filter wrench. Drain whatever oil trapped within the filter housing into your oil pan. Fill a new oil filter with 20W50 motorcycle oil, then screw it onto the engine past hand until the filter's gasket is touching the filter housing. Tighten the oil filter an additional 3/4 turn past hand.

Footstep four

Unscrew the manual housing's drain plug, using a 5/viii-inch socket. On Softails, the drain plug is constitute between the rear shocks; Dyna and Touring models have drain plugs nether the left side of the engine'due south oil pan. Supervene upon the drain plug's O-ring, then screw it into place after the oil has tuckered. Tighten the drain plug to 18 foot-pounds with a torque wrench.

Stride 5

Unscrew the filler plug from the left side of the manual, using a three/8-inch Allen wrench. Fill the transmission with 24 oz. of Harley-Davidson transmission fluid, using a funnel. Spiral the filler plug into the transmission with a 3/8-inch Allen wrench. Tighten the filler plug to 50 inch-pounds with a torque wrench.

Step 6

Pull the filler cap out of the oil tank. Fill the oil tank with 3 1/2 qt. of 20W50 motorcycle oil, using a funnel. Clean upward whatsoever spilled oil with a rag, then reinsert the filler cap into the oil tank.

Footstep vii

Unscrew the chief housing's bleed plug, located beneath the circular clutch inspection cover on the left side of the engine, using a T40 Torx commuter. Drain the primary's fluid into your oil pan. Replace the bleed plug'due south O-ring, so screw the bleed plug into the primary housing with a T40 Torx driver. Tighten the drain plug to 6 foot-pounds with a torque wrench.

Unscrew all five bolts from the primary housing'due south clutch inspection encompass with a T27 Torx driver. Pull the encompass and its gasket away from the primary housing. Fill the primary housing with 32 oz. of Harley-Davidson main fluid. Reinstall the clutch inspection embrace and its gasket onto the primary housing, using a T27 Torx commuter.

References

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