Boring Fixtures
Call us for expert advice and a quotation for your engine machining requirements.
When using our BERCO AC650M the operations used for re-boring car type cylinder blocks will be the same as those for the re-boring of motorcycle cylinder barrels. However the machining of these cylinders does present a series of different problems. Most of these are associated with the setting up of the job before any machining begins.
Each of the many and varied configurations of motorcycle engine design requires a different method when setting up the job. With single cylinder, twin, triple, four and even six cylinders all being commonplace in the motorcycle world not to mention “ V “ configurations and engines with crankcases and barrels sharing a common casting we can see that a variety of approaches are required. At H T Howard we have dedicated jigs and fixtures which allow us to deal with these challenges successfully.
Once the job is set on the machine, the re-boring and honing operations are performed in exactly the same way as for car engines. Only the method for mounting the job varies.
Single Cylinder Rebores – single parallel arrangement
- Reboring a Norton single cylinder barrel mounted on single parallel with over clamps
- Reboring a Norton single cylinder barrel mounted on single parallel with over clamps
Twin Cylinder Rebores – single parallel arrangement
- Reboring Yamaha TZR Twin Cylinders mounted on single parallel with base clamps
- Reboring Yamaha TZR Twin Cylinders mounted on single parallelwith base clamps
- Reboring Yamaha TZR Twin Cylinders mounted on single parallel with base clamps.
Twin Cylinder Rebores – double parallel arrangement
- Reboring Honda CB250, 350 common block twin mounted on single double parallel
- Reboring Honda CB250, 350 common block twin mounted on double parallel
- Reboring Honda CB250, 350 common block twin mounted on double parallel
Twin Cylinder Rebores – oval fixture and parallel arrangement
- Reboring BSA A7 / A10 Twin Cylinder Barrel mounted on Oval Fixture
- Reboring BSA A7 / A10 Twin Cylinder Barrel mounted on Oval Fixture
Four Cylinder Rebores – Single parallel arrangement
- GS750, GS550 Suzuki, 4 Cyl. Re-boring using single parallel arrangement
- FJ1100 Yamaha , 4 Cyl. Re-boring using single parallel arrangement
Four Cylinder Rebores – Rollover Fixture
- Honda Fireblade 4 cylinder barrel with integral crankcase is mounted on rollover angle fixture for reboring
- Yamaha V Max V4 cylinder barrel with integral crankcase is mounted on rollover angle fixture for reboring
Dedicated Motorcycle Fixture
- Reboring a Ducati Bevel Twin 900cc cylinder barrel using our dedicated machining fixture.
- Reboring a Ducati Bevel Twin 900cc cylinder barrel rebored using our Dedicated Machining Fixture.
Call us for expert advice and a quotation for your engine machining requirements.