Just changed the water pump on my ST Tdci and I've got a couple of questions I'm hoping someone might be able to help me with.
When I separated the power steering pump form the water pump, I noticed a small "O" ring on the pump drive shaft. This was floating on the shaft and not retained. When I fitted the new one, I pushed it over the splines and it retained itself in a groove, but the pump instructions seemed to show it floating, so I moved it out of the groove to be like the old pump.
Shall I leave it or dismantle it and put the "O" ring in the groove ?
The other question is about the correct torque for bolting the water pump to the engine. The Haynes manual says :
Water Pump :
Petrol Engines 10Nm
Diesel Engines 24Nm
Water pump housing (diesel engines) 10Nm
So I've used 10Nm but it doesn't feel tight enough and I found a website giving the torques as 24Nm.
Any advice will be gratefully received !
When I separated the power steering pump form the water pump, I noticed a small "O" ring on the pump drive shaft. This was floating on the shaft and not retained. When I fitted the new one, I pushed it over the splines and it retained itself in a groove, but the pump instructions seemed to show it floating, so I moved it out of the groove to be like the old pump.
Shall I leave it or dismantle it and put the "O" ring in the groove ?
The other question is about the correct torque for bolting the water pump to the engine. The Haynes manual says :
Water Pump :
Petrol Engines 10Nm
Diesel Engines 24Nm
Water pump housing (diesel engines) 10Nm
So I've used 10Nm but it doesn't feel tight enough and I found a website giving the torques as 24Nm.
Any advice will be gratefully received !