Inlet pipe Volvo 740 (B19E/B23E/B200E/B230E)

The group includes gaskets against the manifold flange, nipples and plugs for vacuum take-offs, nuts and screws for mounting, plus springs, levers and shutters that control the shutter's travel. Since the engine code and model year determine the flange pattern and take-offs, it is worth comparing the number of nipples and the design of the shutter parts against your own car before anything is replaced.

During a rebuild the condition of the intake gasket, the play in the throttle shaft and the tension of the return spring are typical checkpoints – a worn lever or tired spring gives a sagging shutter and an unstable idle.