Ford Workshop Service and Repair Manuals

The crankshaft timing sprocket drives the injection pump sprocket by means of a chain drive. The crankshaft timing sprocket is held in position only by the clamping pressure of the center bolt.

The crankshaft timing sprocket is located to ensure accurate positioning.

Timing belt drive

The cambelt is driven by the injection pump timing pulley and transmits the valve timing onto the overhead camshaft.

CAUTION:As a new timing belt has a strong settling effect when it is first installed, the instructions for adjustment must be observed precisely.

The tension of the timing belt drive is maintained by an automatic timing belt tensioner. The initial setting of the timing belt tension is carried out by the adjustment cam.

The camshaft timing pulley is retained on the camshaft by means of a taper. The required frictional force is applied to the camshaft by a central bolt.

Valve tappet, adjusting shims

The camshaft timing is transmitted to the valve springs by eight bucket tappets.

CAUTION:The lettering must face the tappets when the adjusting shims are installed.

Adjusting shims are available for adjusting the valve clearance. The thickness of these is indicated on the underside.

Cylinder Head

Cylinder head gaskets of various thicknesses are available. Dependent on the piston projection, a certain thickness is assigned to the engine. This is indicated by indentations on the cylinder head gasket.

CAUTION:Clean the gasket and sealing surfaces thoroughly. Do not use anything sharp for cleaning.

The cylinder head gasket is an MLS (Multi Layered Steel) gasket. The gasket consists of three steel layers. The steel layers are coated with rubber. Because of this design the service life is increased, and because the gasket does not settle when installed, the cylinder head bolts can be tightened with a lower clamping force. Because of this rubber outer coating the gasket is easily grooved, and therefore must not be cleaned with anything sharp.

Crankshaft oil seals

NOTE:The rear crankshaft oil seal is supplied with an oil seal carrier. It must be aligned using the tool shown.

CAUTION:If the support ring is removed too soon, the oil seal will be compressed and made unusable.

The front and rear oil seals are made of PTFE and must be free from oil when installed.

Both oil seals are supplied with a support ring as a spare part. This may not be removed until after assembly, or it may drop out of the oil seal of its own accord.

Crankcase ventilation

The crankcase ventilation valve is located on the top of the cylinder head cover. To ensure optimal engine performance, this valve and all PCV hoses must be free of contaminants at all times.

Oil Pan

The oil pan is made of steel. It is sealed with liquid, silicone based sealant (WSE-M4G-323-A6).

CAUTION:Do not place a workshop jack under the oil pan to raise the engine when removing the front engine mounting.

The oil pan will be pressed inwards if the engine is supported on a workshop jack. This may cause the oil flow into the oil intake pipe to stop.

The oil drain plug has an O-ring seal, which can be used many times.