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Ro646a's avatar
Ro646a
Explorer II
Mar 14, 2018

Alternator replacement on Cat C7, Freightliner XC chassis

I have a Winnebago Journey on a Freightliner XC chassis and Cat C7 with a rear radiator. The engine access is only possible from under the bed, and the the access is VERY restricted.
My alternator has not caused any problems in the 6000 miles I have owned and driven it, but it constantly overcharges. After startup, the voltage is typically 15.3 volts. On the road the voltage fluctuates between 14.6 and 15.1 volts. I'm thinking I should replace the alternator before I have a breakdown.
Can anyone offer any insight as to how difficult this job is going to be?
Class A
  • Trackrig's avatar
    Trackrig
    Explorer II
    Mar 14, 2018
    Did it on a 2005 Fleetwood Excursion with a C7. It took two people, one on top in the closet and one from underneath to get the belt around the fan blades and around all of the pulleys correctly.

    Take a white or silver marker and draw a diagram of where the belt goes around everything on the black fan shroud where it's easy to refer to from underneath.

    You might look at changing your antifreeze overflow tank if it's still original. The plastics they used on them were real **** and almost of them start leaking from heat stress cracks. This will save you from taking everything out of the closet a second time and problems out on the road.

    Bill

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