Warnings

The engine compartment contains numerous moving parts, components at high temperatures and electrical wiring with voltage. Closely observe the following precautions when carrying out operations in the engine compartment:

Switch off the engine and wait for it to cool down.

Do not smoke.

No naked flames.

Make sure that an extinguisher is at hand in the work area.

For some procedures, the use of special Fiat tools is indicated. The use of these tools is vital in order to work safely.

Follow the safety instructions in force for workshop procedures. Where necessary, the Manual contains specific warnings to prevent the risk of dangerous situations.

When using chemicals, closely follow the safety instructions given on the safety sheet which the supplier must give to the user (in Italy, in accordance with D.M. no. 47/1992).

WARNINGS

All the operations must be carried out with the utmost attention and care to avoid damaging the components.

In order to release parts which are sticking, tap lightly using an aluminium or lead hammer if iron materials are involved: use a wooden or resin hammer for light alloy parts. use a wooden or resin hammer for light alloy parts. use a wooden or resin hammer for light alloy parts.

During dismantling, check that parts which have to be marked carry reference marks.

When refitting, lubricate the parts, where necessary, to prevent sticking or seizing during the initial operating period.

During refitting, it is essential to observe the tightening torques and adjustment data.

During each refitting, replace the gaskets, oil seals, flexible washers, safety plates, self-locking nut and all components which have deteriorated.

The quick-release fittings used in the evaporation control system and fuel system are JOHN GUEST type: SL for evaporation control system pipes and GSL for fuel system pipes.

To prevent fuel vapour leaks, the quick-release fittings are fitted with an interior O-ring seal.

1. The figure shows cross-sections through both types of quick-release fitting, SL (1a) and GSL (1b).
2. SL-type quick-release fittings are fitted with a single O-ring seal (2a), while GSL fittings are fitted with two O-ring seals (2b).

To connect SL quick-release fittings, push the fitting fully home and then pull to check the pipe is secure without touching the tabs on the outer case of the female quick-release fitting.

To connect GSL quick-release fittings, push the fitting fully home and check there is no clearance between the thrust washer on the male fitting and the outer case of the female quick release fitting.

Do not use solvents and/or materials incompatible with the pipes and fittings.