Workshop Walkthrough
Panhead 74"/80" top-end — animated diagram walkthrough
A step-by-step animated walkthrough of the 1948-1965 Panhead big-twin — separate engine and primary oil drain, the non-symmetrical cam-gear mark to the pinion, the 7/16" head + rocker stud two-stage torque (34 + 68-75 N.m), the cam-chain tensioner plunger (6-9 mm at rest per H-D 91810-48 shoe replacement), and the cold 0.10-0.13 mm intake / 0.13-0.15 mm exhaust clearance at TDC.
Workshop Walkthrough
Watch each step animated on-canvas, then run the numbered steps below at the bench. Tap to pause; pinch to zoom when paused.
Step 01 - Drain oil and primary-case lubricant separately -- the Pa...
Drain oil and primary-case lubricant separately -- the Panhead shares no sump between engine and primary.
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Family reference
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