View Single Post
Old 05-08-2011, 03:24 PM
rohmell's Avatar
rohmell rohmell is offline
Motorized Bicycle Elite Member
Join Date: Jun 2010
Location: New York
Posts: 1,533
Default Tired of Using a Torch to Bend Cranks.

Yes, I am tired of using a torch to bend the pedal cranks out for clearance for pull-start and centrifugal clutches, so my plan is to use a rewound microwave oven transformer controlled by a variac to heat the crank to bending temperature.
To give you an idea of what I am talking about:

YouTube - High Current Microwave Oven Transformer Test

Of course, the variac will be uses to control the output so that there will be some element of repeatability and safety when using such a technique.
Anyone ever try such an approach?
Reply With Quote