Toyota Land Cruiser 100/Amazon, Lexus LX 470

since 1997 of release

Repair and car operation

Check and adjustment of turns of idling

Frequency of rotation of a cranked shaft is called as turns of idling at the released pedal of an accelerator. This parameter is among critical, defining both operation of the engine generally, and serviceability of functioning of its various subsystems.

PERFORMANCE ORDER

1. Check correctness of installation and serviceability of a condition of an air purifier and all vacuum lines. Make sure of lack of signs of leaks in an inlet air path.
2. Cock the parking brake and prop up wheels protivootkatny boots. Disconnect everything onboard consumers of the electric power and check correctness of installation of a corner of an advancing of ignition (see. Head engine Electric equipment).
3. The engine should be heated-up to normal working temperature that guarantees automatic shutdown of fast idling.
4. Make sure that transmission is established in the situation "R".
5. At check of its single turns distantly connected digital tachometer is capable to provide demanded accuracy of measurement of frequency of rotation of the engine only, connection of the device make strictly according to instructions of manufacturers.

Petrol engine

PERFORMANCE ORDER

1. Connect a tachometer. Connect a sampler of a tester of a tachometer to «IG» conclusion (-) the diagnostic socket.

Do not allow a contact of a wire of a tachometer of weight, it can cause damage of bobbin assembly.

2. Start the engine and increase frequency of rotation of a cranked shaft to 1000 rpm; supporting it about 5 seconds. Release a gas pedal.
3. Consider indications of a tachometer and compare them to requirements of Specifications. If turns of idling do not correspond to requirements of Specifications, malfunction, most likely, consists in an electronic control system of idling (ETCS). Idling turns on engines with injection of fuel (EFI) are supervised by ECM, mechanical adjustment in this system is not provided.

Diesel engine

Adjustment of the minimum turns

PERFORMANCE ORDER

1. Be convinced that at the released pedal of gas the control lever of TNVD concerns the screw of adjustment of the minimum turns of idling (address to an accompanying illustration). Otherwise adjust the drive lever.

2. Start the engine, check turns of idling compare results of check to requirements of Specifications.

3. For adjustment disconnect a drive of the TNVD lever and establish the minimum turns of idling by screw turn in the situation corresponding to the middle of the specified range (address to the accompanying illustration).

4. Tighten a lock-nut of the adjusting screw and again check idling turns.
5. Connect a drive of a control lever and if necessary adjust it.

Adjustment of the maximum turns

PERFORMANCE ORDER

1. Be convinced that at the squeezed-out pedal of gas the control lever of TNVD concerns the screw of adjustment of the maximum turns (address to an accompanying illustration). Otherwise adjust the drive lever.

2. Start the engine, completely squeeze out a gas pedal, measure the maximum turns of a cranked shaft and compare results of measurement to requirements of Specifications.

Do not allow operation of the engine on the maximum turns more than 5 seconds. Adjustment make only at the adjusted minimum turns of idling.

3. For adjustment disconnect draft of an accelerator, cut off a seal of the adjusting screw and a special key give its lock-nut. Establish the maximum turns of idling by screw turn in the situation corresponding to the middle of the specified range (address to the accompanying illustration).

4. Tighten a lock-nut of the adjusting screw, adjust the minimum turns of idling, and again check the maximum turns.
5. Connect draft of an accelerator and if necessary adjust a drive. Establish on the adjusting screw a new seal.