If beyond the limit, replace piston. After machining the face of a cylinder head the height of the valves above or below the head face should be checked against specs and will often require lowering by cutting the valves seats further into the head. Also check these parts to make sure they are free from cracks or flaws. You need to do it by replacing the tappets between the cams and the valve cups. Install valve lifter with engine oil coated. Turn the engine in its normal direction of rotation by using a spanner or socket wrench on the crankshaft-pulley bolt until the two chosen rockers rock. Check joumal and crank pin for out-of-round and taper with a micro- meter.
There may be a self-locking adjusting screw with no locknut. If fault is beyond limit, replace. If specified distance is exceed- ed, replace valve s or valve seat s. Remove valve lifters and keep them in correct order. When installing slidíng parts such as bearings, be sure to apply engine oil on the slidíng surfaces. When the engine is running, due to the thermal expansion and contraction, if there is no gap between the rocker arm and the valve stem, rocker arm swells, the top valve open, the impact of engine power and economy. Install oil pump spindle by align- ing grooves of camshaft, oil pump, drive gear and oil pump drive shaft.
The cams actually act directly on these shims, allowing them to dictae the clearence. If it will not go in or if it goes in with room for movement, adjust the gap. If the rockers pivot on a shaft, the screw is usually at the pushrod end. Bearings are the precision type, steel-backed tri-metal shell. Remove valves, valve springs and relating parts using Tool. Check amount of projection of cyl- inder liner.
There are some engines - including the Fiesta 1. If clutch contact surface of fly- wheel is wom, damaged or roughened beyond limit, replace. There may be a slot-headed screw with a locknut. T : Main bearing cap bolt: 167 - 172 N-m 17. If beyond the limit, replace piston rings or piston.
Check amount of protrusion of combustion chamber. ® : Injection tube flare nut 29 - 34 N-m 3. The feeler gauge must be a close sliding fit - with the engine hot or cold, according to the manufacturer's instructions. Do not apply too much sealant. Turn the engine by means of a socket spanner on the crankshaft-pulley wheel, or by jacking up one of the driven wheels, engaging a high gear, and turning the wheel by hand to turn the engine. Oversize exhaust valve : eats are available as 0. Tum push rod and make sure that ít is within spherical area of valve lifter.
Remove camshaft bushing with Tool. The car handbook should tell you the clearances - if not, consult a dealer or the car service manual. If not within specification, replace with proper thrust washer. Small end bushing inside diameter Maintenance standard: 26. If not, it may refuse to enter the gap, or it may be a loose fit, in which case you can move the rocker up and down with the blade in place. Unless you have a supply of shims, this job is best left to a professional. But you can check the clearances yourself, and decide whether they need adjusting.
Care should be taken to avoid a wrong oombination including bearing. ® : Glow plug 15 - 20 N-m I1. S E I R E S ulrlnęssrïl. Keep main bearing in correct order. If wom or damaged excessevely, replace. If be- yond the limit, replace flywheel. Check valve spring for squareness using a steel square and surface plate.
Piston ring to groove clearance side clearance : Limit Ring No. Cylinder block Cylinder block alloy Cast iron Compression ratio: 20. If beyond the speciñed value, re- place or regrind crankshaft. On a pushrod engine with a rocker shaft, the adjusting screw and locknut, or the self-locking adjusting nut, are at the pushrod end of each rocker. On overhead-camshaft engines, check the clearance of each valve when the lobe of its cam is pointing directly away from it. Tag and number the ignition leads to avoid confusion when replacing them, then remove them from the plugs, pulling the plug caps, not the leads.