A twin‑rocker shaft assembly with central pedestal block and side grease‑cup feed, matching the Lister‑type slow‑speed rocker gear used to actuate intake and exhaust valves; this complete set is built for daily greasing and continuous mill duty.
Key features:
Grease‑cup lubrication feeds a cross‑drilled rocker shaft for low‑RPM protection and simple maintenance at the head, as used on Lister CS‑type arrangements.
Forged/machined rockers with hardened tips and adjustable screws/locknuts; direct fit to standard pushrods and valves on Lister‑type heads.
Specifications:
Engine pattern: Lister‑type 10 HP, single cylinder.
Contents: 2 rocker arms, rocker shaft, center pedestal/block, bronze bushes, adjuster screws with locknuts, thrust spacers, 2 grease cups, mounting fasteners.
Materials/finish: Forged steel rockers and alloy‑steel shaft with bronze bushes; machined, oil‑coated hardware.
Setup: Install on head pedestals, grease via cups until clean purge at rocker drillings, then set valve lash per model spec after warm‑up.
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