ra0701601f010x

0010 - Function of the injection system F. Fuel pump (note deviations for off-road vehicles) Engines 601, 602.91, 603.91

Tipo ra · tema 07.11 · versione 9605 · 1996-01-29

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Collocazione

Gruppo funzionale 1 Motore › 07 Preparazione della miscela › 07.11 Sistema di iniezione diesel pompa di iniezione in linea e regolazione meccanica (M/RSF) — Serie 601 · Serie 602 (modelli 91*)

Valido anche per motori/cambi: 603 91*

07.1-010 Function injection system

F. Fuel pump

0010 - Function of the injection system                                         
	F. Fuel pump (note deviations for off-road vehicles)                            
	Engines 601, 602.91, 603.91

The increased delivery capacity of the fuel pump ensures that the fuel system is bled automatically. The manual priming pump is no longer required.

Rate of delivery > 150 cm3/30 s, with starter speed > 150/min, in fuel return.

E Suction side

D Delivery side

0010 - Function of the injection system                                         
	F. Fuel pump (note deviations for off-road vehicles)                            
	Engines 601, 602.91, 603.91

A choke in the overflow valve on the injection pump is required for bleeding the injection pump.

Overflow valve with choke dia. 1.5 mm (arrow).

The overflow valve prevents that unfiltered fuel reaches the injection pump via the return line if the supply is clogged (e.g. filter).

0010 - Function of the injection system                                         
	F. Fuel pump (note deviations for off-road vehicles)                            
	Engines 601, 602.91, 603.91

Choke with overflow valve

a Housing

b Ball

c Spring

d Plunger

e Supply

f Choke orifice dia. 1.5 mm

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