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IDROCONVERT TRANSMISSION
365
upwards) to prevent the sealing ring from becom-
ing displaced during assembly;
- as soon as the pump is
in
contact
with
the
casing
I
return the latter in its original position and
drive in two screws, together with new lock-washers,
without tightening them;
- insert service tool A. 70145
(fig.
579) to cen-
tralise the pump and
fit
the three remaining screws
with new lock washers;
- tighten the five pump body retaining screws
to 10.85 ± 1.08 ft.lbs (1.5 ±0.i5 kgrn) as shown in
diagram of fig. 681, remove service tool A. 70145
and Ie-check gear rotation (service tool A. 70144).
U the pump is perfectly centralised, fit new seal
(see page 364). Then complete assembly operation
as described below.
To Refit Torque Converter Unit to Idro-
convert Transmission Casing.
Proceed as follows:
- fit service tooi A. 70147 (i, fig. 590);
-
lift
the casing above the torque converter
unit; then, lower and turn slightly in an anti-clock-
wise direction (fig. 591); this operation must be
performed without excessive effort on the part of
the fitter; if any resistance is encountered, slightly
lift the casing and repeat the operation so that the
two converter drive teeth may correctly engage
the pump drive gear;
- check correctenss of assembly by rotating
torque converter a few times;
insert pin (5, fig. 592);
- remove service tooi A. 70147 (I, fig. 590);
- place casing nat and refit plug to guarantee seal.
The Idroconvert transmission is thus ready to be
fitted to the gearbox on the vehicle; the considerable
amount of play between torque converter and cas-
ing is quite normal.
When the transmission has
been fitted to the vehicle, fill with new oil as de-
scribed on page 354.
To Remove and Refit Valve Cover.
Removal of valve cover entails the removal of
the transmission from the vehicle; therefore, remove
gearbox from the vehicle and separate Idroconvert
transmission from the latter.
Thoroughly clean Idroconvert transmission casing
and cooling
.fins,
then:
plug oil inlet on cover;
place casing Oat with cover facing upwards;
remove cover and gasket;
withdraw the strainer: make sure that its
gasket is in good condition and check for gauze
damage • replace if necessary;
- drain oil reservoir;
- make sure that mating surfaces on cover and
casing are in perfect condition; renew cover if
distorted or in any way defective;
- check for damaged pressure regulating valve
seal and distorted support steel plate. Renew cover
if necessary;
- position return spring (4, fig. 587) onto oil
pressure regulating valve (3);
- lubricate gasket (2, fig. 586) with oil and place
it with care on the cover making sure that it is not
bent or torn;
- clean strainer (1, fig. 586), checking for damage
of the gauze and seal, and replace in its proper
position;
- insert .020" (0.5 mm) feeier gauge (i, fig. 588)
under gasket (3) to cover recess (2) to prevent the
pressure regulating valve from damaging the gasket
during assembly of cover;
- fit the cover making sure that the valve does
act on the feeler gauge, also ensuring that the
spring on the filter is properly fitted on the recess
of the cover;
- hold the cover with one hand and screw in
the retaining nuts with the other using new lock-
washers.
Do not tighten retaining nuts to avoid
damaging the gasket upon withdrawal of feeler
gauge;
- tighten the nine retaining nuts to 13
±
1.08 ft.lbs.
(1.8 ±O.15 kgrn) according to tightening reference
shown in fig. 589;
Fig. 594 - Checking pump gear rotation.
1. Service tool A. 70144 for gear rotation check. - 2. Pump body .•
3. Driven gear. - 4. Drive gear.
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