<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div> I replaced the pistons and when I put the fan back on it is rubbing against </div><div id="yui_3_16_0_ym19_1_1462793993750_2609" dir="ltr"> the front half of the housing, not all the time but once or twice per revolution.</div><div id="yui_3_16_0_ym19_1_1462793993750_2610" dir="ltr"> is there a trick to putting the housing back on? thx kk</div></div></body></html>