back to Lou's question tho.... i know he really needs the peace of mind on this before he takes his new benz out on a long trip.

I cant see how it really matters that little 1/8 inch gap on on the idler pully. The pully and tentioner are new and both are straight and solid. no wobble or wiggle whatsoever in the belt. just that little gap.

Is that a real problem? does he need to find something to put behind that pully to even it out?

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Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"