MG TF Series User Manual

-- -"------- ----- -- -THE STEERING GEAR J
Remove the outer ball joint on the same side as the
steering column. taking care not to lose its position
(or reassembly.
Undo the engi ne steady rod and remove its mou nti ng
bracket (rom the chassis.
Remove the three screws and nuts at the universal
joint on the steering column and then detach the
steering gearbox from the frame (four bolts and nuts).
By sliding the complete unit to one side it will be
Fig. JA.
Showing the method of with-
draWing the steering gearbox
assembly from tile front under
side of the vehicle.
·
·
·
I
:
.................. ....- _ ~-- _ _ ........
possible to pull the track-rod. from which the ball end
has been removed, through the large hole in the chassis
and
then the whole unit may be lifted away to the
front.
Replacement is a reversal of this process.
Section J.5
DISMANTLING THE STEERING
GEARBOX
Undo the dips and remove the concertina rubber
dust excluders.
Unscrew the rack damper housing cap and remove
the damper spring. The pressure pad can then be lifted
away. A number of shims will be found under che cap
(see Fig.J.S), which should be kept carefully.
Remove the pinion shaft cap bolts and cap.
Re
move the cou phng nut and slide off the cou piing.
Take off the cirdip against which the coupling
locates.
Withdraw the pinion shaft, holdl ng the gear with the
pinion upwards and leavlng behind the thrust washer.
This thrust washer is trapped behind the rack teeth.
M.G. Midget. Issue] (H & E) 892n-10lS'!
Hold the rack bar in suitable clamps In a vice, knock
back the lock washers and undo the ball Joint caps
with the special spanner. Tool No. T.I 14 (see Section
Q). The ball seat and shims should now drop out.
Screw out the ball seat housing with a special claw
spanner, Tool No. T.113 (see Section Q).
Note.-Should the ball jointcapscomeaway complete
with the ball seat housing it will be necessary to dis-
mantle with
the use of Tool No. T.122 (see Section Q).
R.emove
the rack damper and shims and withdraw
the rack bar from the housing.
Examination
Fractures in the teeth. hollows or any roughness on
the surfaces of the teeth will render the parts un-
se rvlceable.
Check the rack bar and pinion shaft in the housing
for wear or scoring.
The diameter of the rack bar is 1·121 in. to I·120 in.
(113'-17 mm. to 18·45 mrn.) and the bore of the housing
is 1·136 in. to 1·130 in. (28·85 mm. to 28·7 mm.) at the
pinion end and 1·124 in. to I·126 in. (28'55 mm. to
28-60 mm.) at the other end.
The pinion shaft is ·748 in. to ·7485 In. (19·00 rnrn. to
19·01 mm.) diameter at the top and ·624 in. to ·6235 in.
(15,85 mm.
to 15·84 mm.) at the bottom. The bore of
the housing is ·7505 in. to ·750 in. (19,06 mm. to
19·05 rnrn.] and the bore of the cap ·6255 In. to ·626 in.
(15'90 mm.
to 15·91 mm.). If a new cap is fitted this
will be found to be supplied with an undersize bore
and will need reaming in line with the housing with
a special reamer, Tool No. T.112 (see Section Q).
}.5
Wishvilles Classic
Automobile Library

MG TF Series Specifications

General

Brand	MG
Model	TF Series
Category	Automobile
Language	English