Fuel tanks, fuel pump and fuel systems - single point injection

Single Point Injection
Single Point Injection ('SPi') is a simplified version of fuel injection using a single injector in the throttle housing or throttle body - hence the system's other name, Throttle Body Injection, or 'TBi'. It was adopted on several Rover models at the start of the 1990s, being a cost-effective means of cleaning up exhaust emissions on previously carburetter fitted vehicles. Throughout this catalogue you will see this system referred to as SPi rather than TBi, because that's the name recognised by the vast majority of customers.

The first example of fuel injection on the Mini was the SPi Cooper of 1991; the other Mayfair and Sprite models in the Mini range changed from carburetter to the Cooper's SPi system in 1994, albeit using a slightly downrated 'standard performance' form. From 1997 the Multi Point Injection (MPi) system was specified for all markets except Japan, which retained SPi through to the end of production.

Fuel Tanks
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
1	WFE106090	FUEL TANK ASS'Y, restricted filler neck, Black	1	Not Japan or Paul Smith limited edition. Not Germany, 1993-96.
	WFE106140	FUEL TANK ASS'Y, standard filler neck, Black	1	Japan. Not Paul Smith limited edition.
	WFE104530	FUEL TANK ASS'Y, restricted short filler neck, Black	1	1993-96, Germany.
	WFE106140HOQ	FUEL TANK ASS'Y, standard filler neck, Citrus Green	1	Paul Smith limited edition, 1998, Japan.
2	XNB100380	SENDER UNIT, fuel gauge, locking ring type	1
3	ARA1501	RING, locking sender unit to tank	1
4	ARA1502	SEAL, sender unit to tank	1
5	WLD100660	FILLER CAP, locking, non-ventilated, stainless finish	1
6	21A2109	SEAL, filler cap	1	Included in filler caps.
7	FAM3135	SEAL, filler neck	1
8	14A7057	GROMMET, filler neck to back panel	1	1991-93, except Germany. 1991-92, Germany.
	WGG100010	GROMMET, filler neck to back panel	1	1994-96, except Germany and Japan. 1993-96, Germany; 1994 on, Japan.
9	21A2838	STRAP, tank retaining, diagonal	1
10	SH605061	SCREW, strap to seat brace	1
11	LWZ205	WASHER, locking	1
12	13H7583	SCREW, strap to rear floor bracket	1
13	346071A	NUT RETAINER, J type	1
14	WJX10010	PROTECTOR, fuel tank	1
15	WZM10001	FASTENER, protector	2

Fuel Pump
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
16	WFX10045	FUEL PUMP ASSEMBLY, with filter	1
	WFX10045P	FUEL PUMP ASSEMBLY, without filter	1	Non-genuine.
17	EDP9317	PACKING, pump mounting	1

Fuel Systems
1991-96
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
18	WLV10007	VALVE, fuel cut off	1	1991-94.
19	WLV10009	VALVE, two way	1	1991-94.
20	WFH10067	HOSE, cut off valve to two way valve	1	1991-94.
21	WFH10044	HOSE, cut off valve to tank	1	1991-94.
22	WTH10041	HOSE, two way valve to vent pipe	1	1991-94.
23	WYC10005	CLIP, hose to valves	2	1991-94.
	WYC10006	CLIP, hose to valves	2	1991-94.
24	WFU100560	VALVES AND BRACKET ASS'Y	1	1994 on.
The 1994 on WFU100560 assembly may be used to replace all of the valves and hoses in the 1991-94 installation.

Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
25	WJP10267	VENT PIPE, valve hose to charcoal cannister	1
26	WJH10139	HOSE, tank to fuel pipe	1	Marked with orange identification bands.
27	WJP10209	FUEL PIPE ASS'Y, tank to filter	1
28	GFE7059	FILTER, fuel	1
29	WKB10019	ADAPTOR, filter inlet	1
30	WKB10018	PIPE, outlet to fuel pipe	1
31	EDP9976	O RING, adaptor and pipe	2
32	WJU10142	BRACKET, filter mounting	1
33	CRC9380	MOUNTING, rubber, bracket	2
34	CRC9389	DISTANCE PIECE, mounting	2
35	FS106165	SCREW, filter mounting, long	1
36	FS106105	SCREW, filter mounting, short	1
37	WJP10268	FUEL PIPE ASS'Y, filter to engine hose	1
38	WJH10225	HOSE, fuel pipe to throttle body feed pipe	1
39	WJW10030	PIPES ASS'Y, throttle body feed and return	1
40	WJH10260	HOSE, throttle body to return pipe	1
41	WJP10269	FUEL PIPE ASS'Y, return from engine to tank	1
42	WJH10264	HOSE, return pipe to tank	1
43	MHQ100130	SWITCH AND BRACKET ASS'Y, inertia	1
44	WQT100030	SWITCH, inertia, fuel cut off	1	Included in switch and bracket ass'y.
45	WYA10001	GROMMET, triple, fuel pipes through rear floor	1
46	WYH10004	TUBE NUT, male	A/R
47	WJC10034	CLIP, pipes to body	6
48	WJU10137	CLIP, throttle body feed and return pipes	1
49	FS106165	SCREW, clip	1
50	UKC3803	CLIP, long, hose	4
51	UKC6684	TIE WRAP, pipes	1
52	DCP7742	CLIP, short, hose	8
53	WJX10008	PROTECTOR, fuel pipes, front	1
54	EYH10001	NUT, nylon	4

Japan, 1997 On
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
55	WFU100560	VALVES AND BRACKET ASS'Y	1
56	WJP105870	VENT PIPE, valve hose to charcoal cannister	1
57	WJH10139	HOSE, tank to fuel pipe	1	Marked with orange identification bands.
58	WJP105860	FUEL PIPE ASS'Y, tank to filter	1
59	GFE7059	FILTER, fuel	1	1997-98.
	WJN101190	FILTER, fuel	1	1998 on.
60	WKB10019	ADAPTOR, filter inlet	1
61	WKB10018	PIPE, outlet to fuel pipe	1
62	EDP9976	O RING, adaptor and pipe	2
63	WJU10142	BRACKET, filter mounting	1
64	CRC9380	MOUNTING, rubber, bracket	2
65	CRC9389	DISTANCE PIECE, mounting	2
66	FS106165	SCREW, filter mounting, long	1
67	FS106105	SCREW, filter mounting, short	1
68	WJP105880	FUEL PIPE ASS'Y, filter to engine	1
69	WJH104300	PIPE ASS'Y, throttle body feed	1
70	WJH104310	PIPE ASS'Y, throttle body to return pipe	1
71	WJP105890	FUEL PIPE ASS'Y, return from engine to tank	1
72	WJH10264	HOSE, return pipe to tank	1
73	MHQ100130	SWITCH AND BRACKET ASS'Y, inertia	1
74	WQT100030	SWITCH, inertia, fuel cut off	1	Included in switch and bracket ass'y.
75	WYA10001	GROMMET, triple, fuel pipes through rear floor	1
76	WJC10034	CLIP, pipes to body	6
77	WJU10137	CLIP, throttle body feed and return pipes	1
78	FS106165	SCREW, clip	1
79	UKC3803	CLIP, hose	4
80	WJX10008	PROTECTOR, fuel pipes, front	1
81	EYH10001	NUT, nylon	4

Throttle Body
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
82	MLB10028	THROTTLE BODY ASSEMBLY	1
83	MMJ10004	HYDRAULIC ASS'Y KIT, throttle body	1	Included in throttle body assembly.
84	JZX3064	GASKET, hydraulic ass'y to throttle body	1	Included in hydraulic assembly kit.
85	JZX3062	STEPPER MOTOR (idle control valve)	1	Included in throttle body assembly.
86	MMJ10003	POTENTIOMETER KIT, throttle body	1	Included in throttle body assembly.
87	LZV1101	SPACER, throttle body to inlet manifold	1
88	FN108047	NUT, flanged, throttle body to manifold	4
89	MHU10059	BRACKET, abutment	1
90	FS106101	SCREW, bracket to manifold	2
91	WJU10137	BRACKET, fuel lines	1
92	FS106101	SCREW, bracket	1
93	WJU10136	BRACKET, relay	1
94	MED10003	HEATER, pressure temperature compensator	1
95	CR110551	CIRCLIP, heater	1
	JZX2454	ADAPTOR, stepper motor harness	1

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Fuel tanks, fuel pump and fuel systems - single point injection

STEPPER MOTOR-THROTTLE BODY, SPI

FUEL PIPE ASSY.RETURN FROM ENGINE TO TANK-MPI& SPI JAP'97 ON

SENDER UNIT-FUEL TANK-SPI AND MPI

FASTENER-FUEL TANK PROTECTOR TO TANK-'92-'00

TUBE NUT-M14 x 1.5mm-MALE-5/16'' I. D.

CLIP-HOSE

USE: 37H7615M

SWITCH-INERTIA-FUEL CUT OFF-SPI & MPI

VALVE-TWO WAY-(TOP OF TANK)-CARB.MODELS-'92-'93 & SPI-'91-94

USE: WFU100560 OR WFU100570

FUEL CAP-LOCKING-NON VENTED-STAINLESS

ADAPTOR-FUEL FILTER TO INLET PIPE, SPI & MPI TO '98

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