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Common Clearances

REFERENCE

Common Clearances

Detailed clearance specifications can be found online right here at Classic Mini DIY.

Engine
PartClearance/Endfloat (thou)Clearance/Endfloat (mm)
Crankshaft Thrust Washer Endfloat0.002 - 0.0030.05 - 0.07
Rocker/Valve Clearance - Stock0.0120.3
Rocker/Valve Clearance - Rollers0.014 - 0.0150.36 - 0.38
Clutch & Gearbox
PartClearance/Endfloat (thou)Clearance/Endfloat (mm)
Primary Gear Endfloat0.003 - 0.0060.075 - 0.15
Idler Gear Helical Endfloat0.002 - 0.0040.05 - 0.1
Idler Gear Straight Cut Endfloat0.004 - 0.0060.1 - 0.15
Third Motion Bearing Retainer Clearance<= .005<= 0.12
Baulk Ring Clearance0.045 - 0.0601.14 - 1.5
Laygear Endfloat0.002 - 0.0060.05 - 0.15
Differential Bearing Preload0.0040.10
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Classic Mini DIY by Cole Gentry.

The Classic Mini DIY toolbox is a passion project aligned with the Classic Mini DIY youtube channel. This is a completely free resource built to keep the Classic Mini technical knowledge base alive for years to come. Regularly updated and community fed data made to help Classic Mini owners around the world.