what if?

[newbeetech]

lets just say if my exhust motor is going out on enternal overload due to amp draw, plate reads 8 RLA motor pulling 9amps, all thing working fine and clean, the question is this can i install a new motor with a higher amp rating lets say 12 amp, inturn i may have to go with a higher horse power, this is just a question not a real scenerio,

[Dad]

Things to check

Motor clearance to hood shell for belt adjustment.

Motor mount bracket (match up)

Motor RPM, same size pulley and adjustable sheave (do not increase cage RPM over factory specs or it may fly apart)

Wiring size for increased amps

Increased external motor heater size

Correct breaker size.

Correct rotation of cage


You shouldn't have an issue with using a higher amp motor if all things above are checked. Did someone replace the OEM motor with a smaller one?


High amp draw could be due to incorrect rotation, air balance pressure, incorrect pulley or sheave size, or even motor damage but you probably already know this.

[newbeetech]

yup ,i think so , there was onather tech from onother company before me he could have installed a smaller motor with lower amp draw rating,

[gastech]

Why do you want to increase the amp draw? What is the SFA rating ? If there is one. For all you know the motor size and pulley sizes may be wrong. Voltage plays a big part as well. Wheel size dictates motor and pulley size and then there is always the CFM and SP issue. Make, M# and S# go a long ways. W/o it then you need to do a little investigating.

[hvacbear]

Lusker and gastech are right I would say that someone else changed a pulley or motor and caused your current issue (pun intended). I bet they put whatever they had on the truck in rather than the right thing.
Check with the original equipment manufacturer (OEM) and make sure the equipment matches the requirements.

If you just slap a larger motor in you may end up in a surge condition that makes a terrible noise and doubles your energy consumption.