ENGINE SECTION RED PART NUMBERS INDICATE NEW PARTS 6-70 1 2 3 4 5 6 7 8 9 10 11 CONTENTS REFERENCE GENERAL EXHAUST FUEL DRIVE TRAIN ENGINE WHEEL CONTROL FRONT END FRAME ELECTRICAL Cams & Cam Chain Tensioners Description Part # 26G Grind Cams. Designed for two-up riding on heavier bikes, pulling a trailer or when using a sidecar. These cams produce 66809 much more torque and horsepower at the lower and middle RPM range. Pulls best between 1800/5500 RPM. 37G Grind Cams. Designed to produce a broad torque band with horsepower in the 80+ range, if used with low restriction 66810 exhaust and a free flow air filter. Pulls best between 2200/5800 RPM. Gasket & Bearing Kit. Required for installation of above Cams. 66019 Lobe Cam Valve TDC Lift Overlap Separation Valve Duration Lobe Grind Lift at Valve at .053” Angle Timing at .053” Centerline OEM “A” 1999 Carbureted, Listed for Reference. .473” Int .072” 02 108 INT -02/38 INT 216 INT 110 Ex .110” EX 36/04 EX 220 EX 106 OEM “B” 1999 EFI, Listed for Reference. .473” Int .087” 06 106 INT 02/34 INT 216 INT 106 Ex .110” EX 36/04 EX 220 EX 106 26G .490” Int .129” 16 106 INT 09/37 INT 226 INT 104 Ex .112” EX 43/07 EX 230 EX 108 37G .510” Int .151” 26 106 INT 14/42 INT 236 INT 104 Ex .140” EX 48/12 EX 240 EX 108 Cam Specifications with stock 1.625:1 rocker arm ratio GEAR DRIVE CAM KITS FOR TWIN CAM 1999/2006 EXCEPT 2006 DYNA • These bolt-in type cams are designed for Twin Cam engines with stock compression using hydraulic lifters. • They are compatible with carbureted or fuel injected models. Note: EFI models will require re-calibration of the ECU. • Reduced maintenance (no plastic chain guides or tension shoes to wear and contaminate your engine oil or clog oil passages). • Cam timing remains constant. All drive and cam gears utilize a light press fit (gear lash), thus eliminating any chain stretch. • Bearing loads are reduced. No spring loaded chain tensioners are used (which can rob up to 4 horsepower). • Critical sprocket alignment is unnecessary. • Can be used with the OEM non-adjustable pushrods, but to ease installation and eliminate the need to remove the fuel tank and rocker covers, we suggest using our adjustable pushrods found on 6-55/58 . • See Section 10 for the required installation tools. • Includes instructions. Cam Shafts 66019 Required Gasket and Bearing Kit CAM CHAIN TENSIONER FOR MILWAUKEE-EIGHT® MODELS 2017/LATER • Precision machined from billet aluminum. • Thicker shoe for longer wear. • Direct chain oiling. • Larger piston for more consistent pressure. • Tighter tolerance improves stability. Fits All Milwaukee-Eight® Models 2017/Later Part 66046 Shown Installed Not legal for sale or use in California See Page 6-75 For Gear Kit (Not Included)
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