Re: wipac flywheel removal with oversize woodruf key
Posted: Wed Jan 06, 2016 12:56 am
If you suspend the motor by the flywheel by a fixed support, the full shock of the hammer blow is taken by the flywheel if the crankshaft doesn't get released from the taper, that's probably what happened to the flywheel in the picture I posted.
Whereas when the flywheel is held by a friend the sharp impact of the hammer is transmitted via grip of the taper into the flywheel & then into the friends arms which give with the blow reducing the shock to the flywheel.
I was taught how to remove flywheels by an ex Seagull employee who had been the manager of almost every workshop, including the rebuild shop, in the 30 plus years he worked for them, he used a small (1 to 1.5 lb) ball pain hammer & hit them several times, tap, tap, tap, tap, tap, rather like an impact driver a lot of small blows release tight nuts, try undoing the wheel nuts on your car with the wheel brace supplied.
Whereas when the flywheel is held by a friend the sharp impact of the hammer is transmitted via grip of the taper into the flywheel & then into the friends arms which give with the blow reducing the shock to the flywheel.
I was taught how to remove flywheels by an ex Seagull employee who had been the manager of almost every workshop, including the rebuild shop, in the 30 plus years he worked for them, he used a small (1 to 1.5 lb) ball pain hammer & hit them several times, tap, tap, tap, tap, tap, rather like an impact driver a lot of small blows release tight nuts, try undoing the wheel nuts on your car with the wheel brace supplied.