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Missing Graphics url(http://www.odyssey.ford.com/odyssey/graphicMultiGraphicServlet?type=jpg&res=75&id=V2102104&height=5.103&width=8.067) url(http://www.odyssey.ford.com/odyssey/graphicMultiGraphicServlet?type=jpg&res=75&id=GA3930A&height=5.103&width=8.067) url(http://www.odyssey.ford.com/odyssey/graphicMultiGraphicServlet?type=jpg&res=75&id=W1601010&height=5.103&width=8.067) 303-00-1 Engine System - General Information 303-00-1 SECTION 303-00 Engine System - General Information VEHICLE APPLICATION: 2011.50 Ranger CONTENTS PAGE GENERAL PROCEDURES Camshaft Bearing Journal Diameter Camshaft Bearing Journal Clearance Camshaft End Play Camshaft Surface Inspection Camshaft Lobe Lift Crankshaft Main Bearing Journal Clearance Crankshaft Main Bearing Journal Diameter Crankshaft End Play Cylinder Bore Taper Piston Inspection Piston Pin to Bore Diameter Piston Diameter Piston Ring End Gap Piston Ring-to-Groove Clearance Piston Pin Diameter Connecting Rod Large End Bore Valve Stem Diameter Valve Seat Inspection Flywheel Inspection Flywheel Clutch Surface Inspection Cylinder Head Distortion Cylinder Block Distortion Exhaust Manifold Cleaning and Inspection Bearing Inspection 303-00-2 303-00-3 303-00-4 303-00-5 303-00-6 303-00-7 303-00-8 303-00-9 303-00-10 303-00-11 303-00-12 303-00-13 303-00-14 303-00-15 303-00-16 303-00-17 303-00-18 303-00-19 303-00-20 303-00-21 303-00-22 303-00-23 303-00-24 303-00-25 303-00-2 Engine System - General Information 303-00-2 GENERAL PROCEDURES Camshaft Bearing Journal Diameter Determine the diameter of the camshaft journals • Using a micrometer measure the diameter at 90 degrees intervals to determine if the journals are out-of-round • Measure at two different points on the journal to determine if there is any tapering • If the measurements are out of the specified range, install a new camshaft 2011.50 Ranger G17620en 303-00-3 Engine System - General Information 303-00-3 GENERAL PROCEDURES Camshaft Bearing Journal Clearance NOTE: Make sure that the following stages are followed exactly The tappets or followers must be removed to carry out this measurement • The value that is read off is the bearing clearance NOTE: Make sure that the camshaft is to specification NOTE: The bearing caps and journals should be free from engine oil and dirt Position on a width of plastigage on the bearing cap • Insert the camshaft, without lubrication, into the cylinder head • Position a plastigage strip, which should be equal to the width of the bearing cap, on the bearing journal Following the tightening specification, install the camshaft bearing caps Refer to the corresponding Section 303-01 NOTE: Do not strike the bearing caps Remove the camshaft bearing caps, refer to the corresponding Section 303-01 Using the Plastigage, read off the measurement • Compare the width of plastigage with the plastigage scale 2011.50 Ranger G17621en 303-00-4 Engine System - General Information 303-00-4 GENERAL PROCEDURES Camshaft End Play NOTE: Make sure that the camshaft is to specification Using a Dial Indicator Gauge, measure the end play • Slide the camshaft in both directions Read and note the maximum and minimum values on the Dial Indicator Gauge • End play = maximum value minus minimum value • If the measurement is out of specification, install new components 2011.50 Ranger G17622en 303-00-5 Engine System - General Information 303-00-5 GENERAL PROCEDURES Camshaft Surface Inspection Inspect the camshaft lobes for pitting or damage in the active area Minor pitting is acceptable outside the active area 2011.50 Ranger G17623en 303-00-6 Engine System - General Information 303-00-6 GENERAL PROCEDURES Camshaft Lobe Lift Determine the cam lift • Using a micrometer measure the cam in two directions • The difference between the two measurements is the cam lift 2011.50 Ranger G17624en 303-00-7 Engine System - General Information 303-00-7 GENERAL PROCEDURES Crankshaft Main Bearing Journal Clearance Information not available at time of going to press 2011.50 Ranger G17626en 303-00-8 Engine System - General Information 303-00-8 GENERAL PROCEDURES Crankshaft Main Bearing Journal Diameter General Equipment Micrometer Measure the diameter of the main bearing journals and the big-end bearing journals • Repeat the measurement with the micrometer offset by 90°, in order to determine any eccentricity which may be present • Measure the journal at two different positions to determine any conicity which may be present 2011.50 Ranger G21023en 303-00-11 Engine System - General Information 303-00-11 GENERAL PROCEDURES Piston Inspection CAUTION: Do not use any aggressive cleaning fluid or a wire brush to clean the piston Carry out a visual inspection • Clean the piston skirt, pin bush, ring grooves and crown and check for wear or cracks • If there are signs of wear on the piston skirt, check whether the connecting rod is twisted or bent 2011.50 Ranger G17629en 303-00-12 Engine System - General Information 303-00-12 GENERAL PROCEDURES Piston Pin to Bore Diameter NOTE: The piston and piston pin form a matched pair Do not mix up the components Measure the diameter of the piston pin bore • Measure the diameter in two directions • If the values are not to specification, install both a new piston and a new piston pin 2011.50 Ranger G17630en 303-00-13 Engine System - General Information 303-00-13 GENERAL PROCEDURES Piston Diameter General Equipment Micrometer NOTE: Mark the piston to make sure the piston is installed correctly Using a Micrometer measure the piston diameter 2011.50 Ranger G17631en 303-00-14 Engine System - General Information 303-00-14 GENERAL PROCEDURES Piston Ring End Gap CAUTION: Do not mix up the piston rings Install the piston rings in the same position and location Take the piston ring and use a piston without rings to push the piston ring about 30 mm into the cylinder bore Using the Feeler Gauge, measure the piston ring gap 2011.50 Ranger G17632en 303-00-15 Engine System - General Information 303-00-15 GENERAL PROCEDURES Piston Ring-to-Groove Clearance General Equipment Feeler Gauge NOTE: The piston ring must protrude from the piston groove To determine the piston ring clearance, insert the Feeler Gauge right to the back of the groove, behind the wear ridge Using the Feeler Gauge , measure the piston ring clearance 2011.50 Ranger G17633en 303-00-16 Engine System - General Information 303-00-16 GENERAL PROCEDURES Piston Pin Diameter NOTE: The piston and piston pin are a matched pair Do not mix up the components Measure the piston pin diameter • Measure the diameter in two directions • If the values are not to specification, install a new piston and a new piston pin 2011.50 Ranger G17634en 303-00-17 Engine System - General Information 303-00-17 GENERAL PROCEDURES Connecting Rod Large End Bore Measure the bearing bore in two directions The difference is the connecting rod bore out-of-round Verify the out-of-round and the bearing bore is within specification 2011.50 Ranger G17635en 303-00-18 Engine System - General Information 303-00-18 GENERAL PROCEDURES Valve Stem Diameter Using a micrometer measure the diameter of the valve stems • If the measurements are not to specification, install a new valve 2011.50 Ranger G17636en