TXT/Marathon motor interchangeability

Russell heer · 08-23-2014, 08:50 PM

So I have a 99 model DCS four passenger shuttle. The motor acts as if the "transmission" is slipping. When I give the cart throttle, the motor sounds like it is turning, but the cart is barely moving. I have trouble shot it to death using my DVM and the EZ-GO repair manual. I have also torn apart and rebuilt rear axle assembly and found good clean fluid with no metal shavings. Everything keeps pointing to the motor, but still being an amateur I thought I would post for any other ideas. So other than that, the main question is will the motor off of a marathon work in place of the bad one on the TXT/DCS?

sonnysmith · 08-23-2014, 09:32 PM

Check the rear Hubs. They strip out a lot.

mgray70 · 08-23-2014, 10:59 PM

The marathon motor is probably a series motor and will not work with you DCS. I would check the hubs also.

yurtle · 08-24-2014, 03:55 AM

Could be the brake hub is stripped. Take off the dust caps and have someone watch the center nuts to see if they are spinning faster than the wheel/tire.

Russell heer · 08-24-2014, 10:15 AM

Hubs are good so I guess I am buying another motor. Thanks

yurtle · 08-24-2014, 12:18 PM

Not so fast. There is one more thing to check. If motor is really spinning, but little output is going to the wheels, pull the motor and check the splines on it and the rear-end. One could be stripped.

Russell heer · 08-24-2014, 01:09 PM

That is the mystery, having taken the entire motor/axle assembly apart, all splines are good with no shavings present. . .yet the noise is coming from motor. I even took motor apart and nothing surprising there either. It is not a clicking or grinding, it is more like rubbing fingernail across cortoroy material, just louder with a lower tone. I know it sounds crazy, but I am stumped. Could an electric motor shop load test it and tell me for sure?

kgsc · 08-24-2014, 01:22 PM

With some help, put it on jack stands and pull the rear wheels. While holding the brake hit the gas and have someone watch the castle nuts to see if one is spinning faster than the hub. If so, bad hub..

cableguy_hd · 08-24-2014, 01:25 PM

bet yurtle nailed it. I've had this happen twice.

JohnnieB · 08-24-2014, 01:27 PM

Check the F1 & F2 cables. I don't know how they are routed in a shuttle, but they have a nasty tendency to rub on the battery frame in regular carts.

Also, you can test the motor in the cart with the rear wheels off the ground, using about 18V.

08-23-2014, 08:50 PM	#1
Russell heer Not Yet Wild Join Date: Aug 2014 Location: Thomasville, NC Posts: 4	TXT/Marathon motor interchangeability So I have a 99 model DCS four passenger shuttle. The motor acts as if the "transmission" is slipping. When I give the cart throttle, the motor sounds like it is turning, but the cart is barely moving. I have trouble shot it to death using my DVM and the EZ-GO repair manual. I have also torn apart and rebuilt rear axle assembly and found good clean fluid with no metal shavings. Everything keeps pointing to the motor, but still being an amateur I thought I would post for any other ideas. So other than that, the main question is will the motor off of a marathon work in place of the bad one on the TXT/DCS?

08-23-2014, 09:32 PM	#2
sonnysmith Gone Wild Join Date: Jan 2012 Location: Conway,Arkansas 72032 Posts: 775	Re: TXT/Marathon motor interchangeability Check the rear Hubs. They strip out a lot.

08-24-2014, 03:55 AM	#4
yurtle Gone Mad Join Date: Oct 2009 Location: Buford, GA Posts: 8,988	Re: TXT/Marathon motor interchangeability Could be the brake hub is stripped. Take off the dust caps and have someone watch the center nuts to see if they are spinning faster than the wheel/tire.

08-24-2014, 10:15 AM	#5
Russell heer Not Yet Wild Join Date: Aug 2014 Location: Thomasville, NC Posts: 4	Re: TXT/Marathon motor interchangeability Hubs are good so I guess I am buying another motor. Thanks

08-24-2014, 12:18 PM	#6
yurtle Gone Mad Join Date: Oct 2009 Location: Buford, GA Posts: 8,988	Re: TXT/Marathon motor interchangeability Not so fast. There is one more thing to check. If motor is really spinning, but little output is going to the wheels, pull the motor and check the splines on it and the rear-end. One could be stripped.

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08-23-2014, 10:59 PM	#3
mgray70 Gone Wild Join Date: Apr 2013 Location: Deep Run, NC Posts: 2,544	The marathon motor is probably a series motor and will not work with you DCS. I would check the hubs also.

08-24-2014, 01:09 PM	#7
Russell heer Not Yet Wild Join Date: Aug 2014 Location: Thomasville, NC Posts: 4	Re: TXT/Marathon motor interchangeability That is the mystery, having taken the entire motor/axle assembly apart, all splines are good with no shavings present. . .yet the noise is coming from motor. I even took motor apart and nothing surprising there either. It is not a clicking or grinding, it is more like rubbing fingernail across cortoroy material, just louder with a lower tone. I know it sounds crazy, but I am stumped. Could an electric motor shop load test it and tell me for sure?

08-24-2014, 01:22 PM	#8
kgsc Gone Wild Join Date: Dec 2009 Location: Aiken, SC Posts: 13,173	Re: TXT/Marathon motor interchangeability With some help, put it on jack stands and pull the rear wheels. While holding the brake hit the gas and have someone watch the castle nuts to see if one is spinning faster than the hub. If so, bad hub..

08-24-2014, 01:25 PM	#9
cableguy_hd Gone Wild Join Date: Nov 2011 Location: Danville,Va. Posts: 654	Re: TXT/Marathon motor interchangeability bet yurtle nailed it. I've had this happen twice.

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