Engine Tools for Classic British Motorcycles
An engine rebuild starts with identifying the work—and the tool made for it. The Bonneville Shop’s engine-tool selection covers vintage Triumph, Norton and BSA motorcycles, with tools for piston and cylinder work, valve service, ignition and cam timing, bearing checks, and engine disassembly. Browse the listings below, then confirm the tool’s dimensions, threads and model fitment against your motorcycle and workshop manual.
Piston Ring Compressor(s) 60mm-80mm PN# TBS-61103/04/05/10
$22.38 – $43.10Price range: $22.38 through $43.10
5/16 inch Fuel Petrol Gas Hose Assembly Crimping Tool Set PN# TBS-3001
$113.29 – $122.83Price range: $113.29 through $122.83
Choose a tool for the task
- Pistons and cylinders: Find piston-ring installation tools, ring compressors in listed size ranges and a cylinder-barrel flex-hone. Check piston diameter and the service procedure before selecting a tool.
- Cylinder head and valve work: The category includes a valve-spring compressor, valve-guide tools, tappet-adjustment tools and head-bolt torque adapters for specified models.
- Timing and gear removal: Browse crankshaft timing tools, degree wheels and camshaft-gear or crankshaft-pinion pullers. Listings include different thread specifications, so match the tool to the engine before use.
- Bearing-clearance checks: Plastigauge kits are listed in several measurement ranges. Select a range that covers the clearance specified in your manual; Plastigauge’s instructions explain how the compressed strip is read against its calibrated scale.
Prepare for the rebuild
Keep the workshop manual for your exact make, model and year beside you for procedures, measurements and torque specifications. Explore The Bonneville Shop’s books and manuals or browse Triumph manuals and Norton manuals. If the job extends beyond the engine, see primary and transmission tools and the wider service tools collection.
Ready to get started? Shop the engine tools below and check each product page for its stated application before adding it to your bench.

