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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Nissan Maxima QX (1993 release)

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Nissan Maxima QX
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Nissan
Maxima QX
Introduction
Operating Instructions
Adjustment and routine maintenance
Engine
Engines SOHC
general information
Preparatory actions and the list of repair procedures which can be performed without removing the engine from the car
Reduction of the piston of the first cylinder in position of the top dead center (TDC)
Removal and installation of the cylinder head covers
Removal, check of a condition and installation of rocker arm assembly
Replacing valve stem seals and valve springs with plates
Removal and installation of the timing belt and timing gears
Removal and installation of camshafts and valve lifters
Removal and installation of the inlet pipeline
Removal and installation of final collectors
Removing and installing cylinder head
Removing and installing crankshaft pulley
Replacement of a forward epiploon of a cranked shaft
Removing and installing sump
Removal, check of a condition and installation of the oil pump
Removal and installation of a flywheel / drive disc
Replacing the crankshaft rear oil seal
Check and replacement of support of a suspension bracket of the power unit
Engines DOHC
Total engine overhaul
System of cooling, heating
The power supply system and release
Electric motor
Engine Control Systems
Transmission
Coupling and power shafts
Brakes
Suspension and steering
Body
Onboard electric
 


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Check and replacement of support of a suspension bracket of the power unit



Supports power train rarely need attention, but the damaged pads must be replaced without delay in order to avoid increasing loads and premature wear of the components of the transmission line.


In these models the suspension of the power unit is implemented by four rubber mounts. With the right front and rear supports of the engine block is attached to the bottom carrier paved the crossbar. The left front and rear support are fixed with gear assembly to the frame of the vehicle.

CHECK

PERFORMANCE ORDER

1. To check the engine must be lifted slightly, completely relieving support.
2. Poddomkratte car and establish it on props. Post unit on top of the winch or beam.
3. Check the pillow supports for cracks, signs of hardening of rubber and its detachment from the central metal sleeves.
4. Estimate the amount of movement between the assemblies and supports the powertrain / vehicle frame (as a lever, use a crowbar or large screwdriver). In the event of slack lower unit and tighten hardware supports.
5. Pillows in order to avoid destruction of rubber should be treated with special protective composition.

REPLACEMENT

PERFORMANCE ORDER

Disconnect the negative wire from the battery.

If installed on the car stereo is equipped with a security code before to disconnect the battery make sure that have a correct combination for audiosystem input in action! Cock a lay brake, Poddomkratte the front of the car and establish it on props. Remove protection crankcase.


The front and rear engine mounting (right)

PERFORMANCE ORDER

1. Post the unit above.

2. Remove the screws through the supports to the cross beam.

3. Turn out fixing bolts and remove the crossmember from the vehicle chassis.
4. Remove the mounting bolts through the brackets on the engine block.
5. Install in the reverse order.

Final tightening of fixture supports with demanded effort should be made only after the descent of the power unit in position. Proceed to the final stage of the tightening of procedures fasteners.


Front and back support of transmission (left)

PERFORMANCE ORDER

Transmission (left) side of the power unit is also fastened by means of two pillars - front and back.


Front left support

PERFORMANCE ORDER

1. Support the transmission jack under the dome. Remove the through-bolt support to the chassis and three bolts it to the transmission. Remove the assembly support.

2. Install in the reverse order.

Final tightening fasteners support with demanded effort should be made only after the descent of the power unit in position. Proceed to the final stage of the tightening of procedures fasteners.


Rear left support

PERFORMANCE ORDER

1. Working under the car, loosen the nut bracket support to the transmission housing.

2. Through bolt support bracket to the chassis is given from above - pre-assembly, remove the air from the inlet sleeve.

3. Lower the transmission so that the transmission arm withdrew from the stud bolts, then remove the support.
4. Install in the reverse order.

Final tightening fasteners support with demanded effort should be made only after the descent of the power unit in position. Proceed to the final stage of the tightening of procedures fasteners.


The final stage of a tightening of fixture supports

PERFORMANCE ORDER

In order to maximize the lifetime of rubber bearings and reducing noise and vibration definitive tightening of fixture supports with demanded effort should be made after the lowering of the power unit in a regular position (the car should be parked on level ground).

Threaded fasteners should be lubricated part of the special sealant to secure the threaded connections. Make sure the rubber bushings are not twisted or displaced from their seats. If replacement of more than one support, as well as the installation of the power unit supports a tightening of fixture must be performed in the following order:

a) Bolts crossbeam;
b) the right back support;
c) The left front support;
d) the right front support;
e) The left rear support.





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