Field Coil Renewal; Renew Gasket Kit - Aston Martin DB7 Workshop Manual

Air Conditioning Repair Procedures
Field Coil Renewal / Gasket Kit Renewal
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8.1.02.1 Field Coil Renewal
8.1.03.1 Renew Gasket Kit
Procedure
1. Open the bonnet and fit a wing cover.
2. Depressurise the air conditioning system.
3. Remove the compressor.
4. Remove the compressor drive clutch.
5. Remove the compressor pulley.
6. Slacken the field coil wire clamp screw (Fig. 1) and
release the wire from the clamp.
10.
Remove the field coil retaining snap ring and
detach the field coil.
Clean the mating face of the compressor with a
cloth moistened with an approved cleaning fluid.
Position the new field coil on the compressor and
fit the retaining snap ring.
Route the wire to the compressor and fit the wire
clamp, tighten the securing screw.
11. Fit the compressor pulley.
12. Fit the compressor drive clutch.
13. Fit the compressor.
14. Recharge the air conditioning system.
15. Remove the wing cover and close the bonnet.
Data
Torque Figures
Cylinder head bolts 29.83 to 33.9 Nm.
Procedure
1. Open the bonnet and fit a wing cover.
2. Depressurise the air conditioning system.
3. Remove the compressor.
4. Position the compressor in a vice, tighten the vice
onto the compressor body lugs.
5. Remove the outlet port blanking plate securing bolt
and detach the plate.
6. Remove and discard the ' O ' ring seals from the
outlet port.
7. Remove the compressor cylinder head securing
bolts, detach the cylinder head.
8. Detach the valve plate from the compressor.
9. Remove the gaskets from the compressor.
10. Remove all traces of gasket material from the
mating surfaces of the cylinder head, valve plate
and cylinder block.
Figure 1.
11. Position new gaskets (Fig. 1 -1 and 3) on the valve
plate (Fig. 1-2) and then place it on the cylinder
block.
8-52 May 1996