My 91 SC has slop and noise coming out of the blower snout. I think it's probably the coupler. Can I just pull the snout off and change the coupler or do I have to take off the pulley etc. It seems that the coupler just slides onto some drive pins. Any pictures illustrations anyplace? I've searched but haven't turned up anything that allows me to understand what the assembly looks like. I think the snout bearings are OK. Thanks in advance for the help.