Removing and checking the GAZ-3110 steering mechanism
Put the parking brake
Install rear wheel chocks.
Loosen the front left wheel mounting bolts.
Raise and support the front of the car.
Remove the bolts and remove the wheel.
From the side of the wheel niche, remove the mudguard from the mudguard of the left wheel by prying off the caps of its fastening with a screwdriver.
From the inside of the passenger compartment, unscrew the fastening nut 1, remove the wedge 2 and disconnect the worm shaft of the steering mechanism from the cardan joint 3.
Having previously marked the relative position of the shaft 1 of the bipod and bipod 2 of the steering, unscrew the fastening nut and press the bipod from the shaft.
Remove the four mounting bolts and remove the steering mechanism.
In this case, it is recommended to mark the bolts, as they are of different lengths.
Clean the steering box from dirt.
Drain the oil from the steering gear housing through the filler hole by unscrewing the plug.
It is advisable to do this immediately after the trip.
Clamp the steering gear housing in a vise by the lug to secure the housing to the body and set the roller to the middle position by turning its shaft 1.
Unscrew cap nut 2.
Remove lock washer 1 with gasket.
Remove adjusting screw 2.
Unscrew the four bolts 3 fastening and remove the side cover 4 with the bipod shaft assembly and the gasket.
Before removing the bipod shaft, carefully clean its lower end to prevent dirt from entering the crankcase.
Remove the side cover 3 from the shaft 1 of the bipod together with the bearing 2.
If necessary, press the bearing out of the side cover.
Remove four bolts 1 securing the upper 2 and lower 3 crankcase covers and remove the covers together with the shim packs.
Remove the worm together with the roller bearings from the crankcase.
Remove the oil seals from the crankcase and top cover if necessary.
Check the steering box. If cracks and chips are found, the crankcase must be replaced.
If wear is found on the bushings of the bipod shaft (the shaft has side play), it is necessary to replace the bushings or the crankcase with bushings assembly.
Check the worm and roller.
If chipping, cracks and dents are found, replace defective parts.
Bearings of the shaft of the bipod and the worm with the shaft must not have pitting, shells and visible wear on the rolling surfaces.
If traces of oil leakage were noticed during operation, it is necessary to replace the oil seals installed in the crankcase and the top cover.
The steering mechanism is assembled in the reverse order of disassembly.
Install the lock washer 1 with the protrusion into the groove adjusting screw 2, thereby fixing the screw.
The lock washer itself is fixed with pin 3. The axial play of the worm is unacceptable.
The backlash is eliminated by selecting the thickness of the package of shims under the front crankcase cover, which provides the preload of the bearings.
In this case, the moment of turning the worm shaft should be within 0.4–0.8 Nm (0.04–0.08 kgf m).
Pour 0.4 l of TM–5–18 or Omskoil Super T oil into the crankcase.
Install the steering mechanism in the reverse order of removal.
In this case, the nuts securing the mechanism to the side member are tightened with a torque of 50–60 N m (5.0–6.0 kgf m).
The bipod on the shaft must be installed in accordance with the marks.
When connecting the worm shaft to the cardan bearing, you must set the front wheels and the steering wheel to the position of driving the car in a straight line.
After installation, adjust the mechanism.
Set the steering wheel to the straight ahead position. In this case, the engine must be turned off.
Unscrew cap nut 1 and remove lock washer 2.
Slightly turn the adjusting bolt clockwise using the hexagon 1 until the steering wheel free play does not exceed 17 mm.
The amount of free play is measured on the wheel rim.
After adjustment, fill the hexagonal cavity of the adjusting bolt with Litol-24 grease.
Install the lip of the lock washer into the groove of the adjusting screw and tighten the cap nut.
Make a test drive and check the correct adjustment of the steering mechanism while driving.
If the front wheels are sluggish when exiting the turn, it is necessary to unscrew (counterclockwise) the adjusting bolt by 1-2 grooves of the lock washer and readjust the steering mechanism again.
If it is impossible to achieve the desired result, the steering mechanism must be repaired or replaced.