Harley-Davidson WLA Service Manual 1929-1952

1929-1952 Harley-Davidson WLA Engine Overhaul Service Manual documentation with detailed engine overhaul procedures, component removal, and assembly instructions. Publication TM 9-879.

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Document Details

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Document Number / Seller:
23952 / Robert Moore
File Size:
42.24 MB
File Type:
PDF
Language:
English
Pages:
110
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Apr 12, 2025

Models Covered & Key Technical Specifications

Harley-Davidson WLA Engine Overhaul Service Manual: Harley-Davidson 1929-1952 WLA Engine Overhaul Service Manual Diagnostic-Reference Harley-Davidson WLA 45 — 1929–1952 | WLA Series Repository. Volume

  • Authorized Installation Footprint: 234 inches (59.44 mm) is specified as the engine block diameter Mapping.
  • Published Maximum Resolution: For optimal crankshaft travel, 450 W requires 3¹³⁄₁₆ inches (96.84 mm) limits the piston stroke Configuration.
  • Reference Twist Specifications: 45.12 cubic inches (739.4 cc) -- signifies the total engine volume Benchmarks.
  • Fundamental Deviation Limits: The ignition timing requires 6.05 hp at governed engine speed Range.
  • Specific Operating Temps: The N.A.C.C. rating defines the environmental limit Framework.
  • Core Gross Dimensions: The formatter board requires 5.0 to 1 for standard operation Logic.

Manual Description & Preview

Thorough Configuration Service Manual: Harley-Davidson 1929-1952 WLA Engine Overhaul Service Manual Diagnostic-Reference

Serial-Range: Harley-Davidson WLA 45 — 1929–1952 // System-Identifier: Motorcycle / Engine Logic // System-Identifier: Engine Overhaul Manual.

Identifier Technical-Path Calibration-Data
Engine Overhaul Engine Overhaul procedures 110 Pages
Component Removal Detailed removal steps TM 9-879
Component Assembly Step-by-step assembly N/A
Specifications Key engine specifications N/A
Diagrams Illustrated diagrams N/A
Troubleshooting N/A N/A

Integrated service sections encompass engine overhaul procedures, component removal, and assembly instructions. Consistently requiring accurate documentation, this manual provides comprehensive guidance. The manual details subsystem operations and includes specifications for various engine components.

Service procedures are documented for engine overhaul. Calibration requirements are specified for engine component adjustments. Electrical system documentation covers ignition and related components. Suspension service documentation covers engine mounting and related parts. Disassembly instructions are documented for complete engine breakdown. This manual documents torque specifications for critical engine components to ensure proper thermal expansion compensation.

FAQ

What model year ranges and WLA submodel variants are covered in this service manual? keyboard_arrow_down

Document covers the Harley-Davidson 45 cubic inch side valve engine models generally spanning 1929 through 1952, including specific applications for 1941 and later Servi-Car variants.

Does this manual provide detailed technical specification tables for engine components such as bore, stroke, and compression ratios? keyboard_arrow_down

Manual includes dedicated specification tables for the engine, listing data points such as the standard cylinder bore, piston stroke, compression ratio, fuel requirements, and operating weight.

Are there exploded views and reference diagrams included for the ignition system and generator wiring? keyboard_arrow_down

Document contains detailed exploded views of system components like the ignition timer and generator, as well as integrated circuit diagrams for the ignition and lighting systems to assist with identification.

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