I have one of those coming. I'm having a problem with the oil pump, and water pump, PS pump.

I can't find any way to hold them. I have a copy of the engine OEM engine ship manual and all it says is to remove the 13mmm bolts.

I wedged in a long screwdriver to hold the pulley from turning when removing the bolts. Never had a problem with it doing it that way.

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).