Home › Forum › Ask A Member › Is there a manual for Merc Quicky with sleeve bearing? › Re: Is there a manual for Merc Quicky with sleeve bearing?
You may choose to use the later style 2 piece assembly, but you should not attempt to torque the nut to the factory recommended 100 ft. lbs. The case will probably crack thru the threads. That original style, sand-cast housing is 3/16 inch shorter front to back, and has about three fewer threads to engage the nut. If you must use a needle bearing cone, a KOYO (Torrington) B-98 may be substituted for the bushing. If you supply heavy grease to it AFTER every use, it will last for an appreciably longer time than the bushing. We used that arrangement for many years while racing the Stock A classes. No shaft or bearing failures. In practice, you can expect the bushings to wear out within a few minutes of initial use. They then harbor abrasive particles of prop shaft chrome plating particles and sand. That stuff wears out the shaft. I much prefer the use of the bare, usealed needle bearing over the bushing. R.T.