Due to a lack of usable cores we now offer this camshaft service. Your usable core is completely restored to stock specifications and returned to you ready to install. Just click on the 'Print Service Form' icon for the form, and complete instructions.
Camshaft Specifications:
Shaft diameter: 7/8"
Bearing diameter: 1.560"
Block bore diameter: 1.561"
Bearing clearance: (MAX.) .003"
Bearing length: Front, 1-3/4"; Center, 2"; Rear, 1"; 4th (1928), 7/8"
Lift of cam: .285" (Model B: .339" exhaust; .334" intake)
Duration: 188º
Lobe center angle: 113-1/2º
End play spring tension: Approximately 35 pounds
Timing gear mounting flange: 2-5/16" diameter, 5/16" thick
Camshaft material: Special Ford carbon manganese
steel
Cam shaft gear: Bakelized material
Number of gear teeth: 50
Camshaft gear type: Spiral teeth
Gear backlash: .003" to .005"
Gear rotation speed: 1/2 of crankshaft
Camshaft straightness: .0005" to .001"
Variation in eccentricity of pitch diameter of gear teeth: .0015"
Variation in maintaining center distance of mating gears: +/- .001"
Gear tolerances in regular spacing of teeth: 0.0"
| Make | Model | Years |
| Ford | Model A | 1928 - 1931 |
