Harley-Davidson Panhead 1948–1957 Service Manual OEM (P/N 9600-33)
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Harley-Davidson Models Covered & Key Technical Specifications
Models: Harley-Davidson Panhead (O.H.V. Twin), E, EL, F, FL, FLH
Sub-models / Variants: Solo, Sidecar
Trade Names: Hydra-Glide
Model Years: 1948–1957
Serial Numbers: Engine serial numbers are stamped on the left side of the engine crankcase.
Technical Data:
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Engine displacement: 61 cu. in. (E/EL) and 74 cu. in. (F/FL/FLH)
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Engine configuration: 45-degree V-type, 2-cylinder, overhead-valve (OHV)
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Compression ratio: 6.5:1 to 8:1 depending on model variant
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Transmission: Constant mesh, 4-speed (foot or hand shift), optional 3-speed with reverse
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Wheelbase: 59 1/2 in. (1948–1954 models), 60 in. (1955–1957 models)
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Horsepower: 8.77–9.44 (N.A.C.C. rating) or 55–60 HP at 5,400 RPM (FL/FLH models)
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Tire inflation: 12–26 lbs. depending on tire size and passenger load
Harley-Davidson Manual Features & Content Preview
- Covers 1948–1957 O.H.V. Twin models (E, EL, F, FL, and FLH) in both solo and sidecar setups
- Original OEM factory specifications for the classic rigid-frame production era
- Part No. 9600-33
- Features 124 exploded-view diagrams, 3 detailed wiring schematics, and extensive service data charts
What's Inside the Manual
Getting a vintage rigid-frame Panhead back on the road requires exact factory data, not guesswork. This reference delivers the exact specifications needed for maintaining and overhauling the iconic O.H.V. Twin engine series. It outlines complete system lubrication circuits alongside detailed breakdown procedures for the Hydra-Glide fork and steering head bearings. Core chapters cover routine chassis maintenance, wheel servicing, spoke alignment, and brake system overhauls. Because this manual is available as an instant download, you can immediately pull up complex oil pressure routing or electrical generator schematics right at your workbench without waiting for shipping.
Critical Shop Specifications
The data tables provide exacting tolerances for heavy engine work. Expect precise multi-stage tappet adjustment sequences essential for proper compression sealing in the O.H.V. head. The guide lists strict measurements for piston ring gaps, valve seat widths, and the required 0.004–0.006 in. clearance for exhaust valves. Torque values are clearly defined, including the 65 ft-lbs requirement for FLH head bolts, along with optimal solo rider tire pressures (12–16 lbs depending on dimensions).
Working on vintage iron carries inherent risks, so always verify chassis stability on your lift and wear appropriate protective gear before turning wrenches. Please note that this page serves solely as a contents overview to show how factory workshop documentation is structured; the provided manual itself contains the full diagnostic and step-by-step procedures.
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