Filed Under (Harley Davidson) by admin on 31-10-2010

The cylinder sleeves provided with the Wiseco V-Rod big bore kit have been finished honed to size and the piston to cylinder clearance has been set. Prior to installation, the sleeves must be washed in hot soapy water (not parts washer solvent) and dried. Coat the bore surface with motor oil and wipe it with a white towel. If the towel shows any remaining grit, repeat the hot soapy water washing process until the towel will only show clean motor oil. CAUTION: Test fit the cleaned sleeve (without O-Rings installed) into the engine block. Sleeve should drop into position. If sleeve will not easily drop into position, warm the engine block with a hair dryer until sleeve will drop into position. Remove sleeve, then continue installation procedures. From the bottom side of the sleeve, gently roll the 2-cylinder sleeve O-rings into the two grooves on each sleeve. Apply motor oil to the O-rings and gently install the sleeves into the block until bottomed. CAUTION: DO NOT ATTEMPT TO INSTALL SLEEVES WITHOUT LUBRICATING THE O-RINGS. FAILURE TO LUBRICATE O-RINGS COULD RESULT IN TORN OR DAMAGED O-RINGS THAT WOULD NOT BE EVIDENT UNTIL ENGINE WAS STARTED. INCORRECTLY INSTALLED O-RINGS CAN RESULT IN CATASTROPHIC ENGINE DAMAGE. NOTE: REFER TO THE OEM SERVICE MANUAL FOR ALL TORQUE SPECIFICATIONS PISTON RING PREPARATION Wiseco V-Rod pistons incorporate an advanced 2 ring system • The top ring is file-fit, and as such, requires that the end gap must be clearanced. The proper end gap clearance is .016-.018″ with the ring installed squarely in the bore. The top ring must be installed on the piston with the dot marking toward the top of the piston. • The oil ring is comprised of the expander and two rails. Install the expander first, and then the rails. Check to make sure the expander tips have not overlapped. It is not necessary to clearance the end gaps on the oil rails. The rails should be installed without modification. PISTON INSTALLATION The Wiseco V-Rod big bore kit is supplied with pistons that are front and rear cylinder specific. Install the front piston 4792M10795 in the front cylinder with the arrow facing the front of the engine. Install the rear piston 4793M10795 in the rear cylinder with the arrow facing the front of the engine. A piston ring compressor is required to install the pistons into the cylinders. Front of engine ➔ 4792M10795 ( Front piston) 4793M10795 ( Rear piston) FWD 4793M10795 FWD 4792M10795 For further information call the Wiseco Tech Line: