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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 3 (2003 release)
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 Mazda 3
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Mazda
3
Operation and maintenance of car
Engine
General description new engines models L8, LF, L3
The mechanical part of engines
Engine Model L8 or LF
Checking the contents of the CO / CH in the exhaust gas
Measurement of engine compression
Verify accessory drive belt
General information and safety when removing the power unit
Removal of sealant
Removal and installation of the power unit
Check actuator variable valve timing (L3)
Removal and installation of the actuator variable valve timing (L3)
Timing chain drive
Removal and installation of the oil control valve (OCV) (L3)
Checking the oil control valve (OCV) (L3)
By operation of the spool valve (OCV) (L3)
General repair operations on the power unit
Check the cylinder head
Check the valve guide
Measuring the length of the valve
Measure the diameter of the valve stem
Measurement of the internal diameter of the valve guide
Measuring the height of protrusion of the valve guide
Replacing the valve guide
Pressing the valve guide
Check and repair the valve seat
Check the valve spring
Checking camshaft
Measure the diameter of the neck of a cam
Measurement of radial clearance of cervical camshaft
Measuring axial clearance of cervical camshaft
Check valve tappet
Checking cylinder
Check valve nozzle maslorazbryzgivayuschego
Check the piston
Checking crankshaft
Measurement of run-out of the crankshaft
Measure the diameter of the necks of the crankshaft
Measurement of radial clearance in the crankshaft bearing
Check the connecting rod side clearance
Measurement of the radial clearance of the connecting rod
Check the bolts
Assembling the cylinder (the beginning)
Assembling the cylinder (the end)
Assembling the cylinder head
Assembling the valve timing
Appendix 1
Annex 2
Appendix 3
Engine Z6 - mechanical part
Lubrication system
Cooling system
Intake system
Fuel system
Exhaust and Emission
Ignition system
Control system
Tables
Transmission
Chassis
Steering Gear
Brakes
Onboard electric
Body
 


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Measurement of radial clearance of cervical camshaft



Remove the valve tappet.

Setting calibrated plastic wire
Fig. 2.155. Setting calibrated plastic wire


Put the pieces of the calibrated plastic wire on top of the neck of a cam-shaft, placing them along the axis (Fig. 2.155).
Install the camshaft bearing caps. (see. "Instructions for assembly of the camshaft").
Remove the camshaft bearing caps. (see. "Notes on disassembling the camshaft bearing cover").
Measure the radial clearance.
If the clearance is not correct, replace the cylinder head.
Standard clearance 0.04-0.08 mm.
Maximum gap: 0.09 mm.




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Measuring axial clearance of cervical camshaft

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