Ford Sierra

3.1.4.8. An automatic transmission

THE GENERAL DATA

Зачеканка картера hydrokinetic transfer at installation of a sealing ring

And – a core for зачеканки, In – traces of factory stamping,

With – points of stamping of a new sealing ring

Since May, 1986 the sealing ring of the oil pump is fixed by зачеканки картера hydrokinetic transfer.

Knot of a vacuum regulator of a gear change

1 – a vacuum regulator, 2 – a pusher, 3 – the valve, 4 – identification проточка the valve

Since June, 1988 the new valve of a vacuum regulator of a gear change with a designation is used: 84 GT 7D 080 BA. It can be defined on проточке in an average part (4).

Bolts of adjustment of tapes of brakes of an automatic transmission

And – a bolt of adjustment of a tape of an average brake, In – a bolt of adjustment of a tape of a forward brake

Since August, 1988 the method of adjustment of tapes of brakes of an automatic transmission is changed:
  – The bolt () adjustments of a tape of an average brake should be unscrewed (after full screwing up) on 2,5 turns;
  – The bolt () adjustments of a tape of a forward brake should be unscrewed (after full screwing up) on 2 turns.

The changed form of the oil pallet of an automatic transmission

The arrow specifies the changed form of the pallet.

From model 1989 automatic transmissions are equipped with oil pallets of the changed form and oil pumps with longer маслоприемником.

From a factory code 8 To 24 automatic transmissions have oil pallets with a magnet.

AUTOMATIC TRANSMISSION FORD A 4 LD

In April, 1989 electrohydraulic management of a transmission about blocking of hydrokinetic transfer by system of inclusion 3 and 4th transfers is entered.

Blocking of coupling of hydrokinetic transfer provides electronic actuation device EES IV. This coupling will be unblocked by each pressing a brake pedal.

Transition with 3 on 4th transfer provides the additional electromagnetic valve operated electronic actuation device EES IV.

The moment of switching with 4th on 3 transfer (a transfer reduction) is optimised on the basis of the data about speed of movement, loading on the engine and positions of a pedal of an accelerator.

After pressing of a pedal of an accelerator against the stop (kick-down) the electronic device operating automatic transfer causes:

  – Blocking of hydrokinetic transfer to movement time on 3 transfer with a speed of 130 km/h;
  – Switching of transfer with 3rd on 4th at number of turns more than 6100 rpm;
  – A reduction of transfer with 4th on 3 at number of turns of the engine less than 4200 rpm.

Adjustment of a cable of a reduction of transfers (the mechanism kick-down)

PERFORMANCE ORDER

1. To include ignition, to press against the stop a pedal of an accelerator and to keep it in this position. 2. To turn the mechanism lever kick-down an automatic transmission counter-clockwise against the stop. 3. To establish adaptation Ford 17.031 on a cable, not to admit its excessive tension. 4. To weaken bolts of fastening of the electromagnetic valve. 5. To move the electromagnetic valve in forward position at which considerable resistance is felt. The prevention If the electromagnetic valve is moved too far, the cable will be weakened. In this case it is necessary to remove the valve back and to repeat the previous operations. 6. To tighten the corresponding moment at first the bottom bolt of fastening, and then the top bolt. 7. If adjustment is spent correctly the electromagnetic valve should hold the mechanism lever kick-down on distance of 0,3-0,8 mm clockwise from extreme position. 8. If the cable is too tense, the electromagnetic valve will not reach correct position and the lever after passage through a magnet will return to the previous position. It is necessary to repeat adjustment of a tension of a cable.

Other information, concerning a technical characteristics, adjustment and repair of an automatic transmission is resulted in subsection 6.3 (transmission Ford C3) and in subsection 3.1.3.15 (transmission Ford A 4 LD).