I have been trying to install a new frost plug block heater in my G1900 diesel. When it gets cold enough to put the snow blower on this cold natured beaste will not start without warming it up first! After I got the old heater out and tried to put the new one in, I found that the new heater interfers with the front cylinder. After looking at the old heater again, it looks like the old one was modified by bending the element to the side and flattening the inside with a hammer! All these years I have been under the impression that these type heaters could not be treated this way with out destroying them, however this heater lasted almost 18 years. Does anyone have any information about modifying these heaters with a hammer?