I just received my Porter Cable 7424. I detailed my BLACK 190 and it did a much better job than my old sears type random orbital, including removing sanding marks.

HOWEVER, the clutch on the thing is so weak that ANY pressure at all it stops spinning, and I mean you almost have to take some of the unit's weight off of it (hold it up a little). It is even worse when you are holding it vertical (on the side of the car).

1. Do I have a defective clutch?

2. Anyone successfully "modify" theirs to resolve this?

I KNOW it is to have some sort of a clutch, it is not a direct drive machine, but it makes it almost useless for what you really want it to do.

brookspw

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1994 C280, dark green metallic
105k miles

1991 190E 2.6, Black
191,500 miles
(sold to another forum member)

2003 Chevy Tahoe LT, Redfire Metallic
105k miles

1989 Mustang GT Cobra Convertible
43k miles