Where can I get a guide for rebuilding my ao smith blower motor for my furnace. 1/5hp 115 volts 1050rpm 6.5amps model#326p203

You won't find one and rebuilding a motor of that nature would be a waste. For starters, once they fail to the point you notice they need atention it is usually to late. Parts are not going to be available and the cost of the replacement is so low it just doesn't make sense to try. A replacement motor is only about $130. If you would like a formal quote or to order one, contact us at www.arrowmotor.net and include the model number (326p203) in your message.