LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Triumph >> 1974 >> Spitfire >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up Specifications >> Tune-Up Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Tune-Up Specifications

CAR MODEL SPARK PLUGS CARBURETOR VALVE CLEARANCE DISTRIBUTOR No.
Type Gap Make Model Int. Exh. Point Gap Cam Angle
ALFA ROMEO  Lodge                
2000 HL (1) Spica Injection .020"C .022"C .018" 60° 1
AUDI  Champion                
Fox N8Y .028" Solex 32/35 TDID .008"H .016"H .016" 50±3° 2
TOOLS N7Y .035-.040" Solex 32/35 TDID .008"H .016"H .016" 50±3° 3
AUSTIN/MG  Champion                
Austin Marina N9Y .034-.036" SU H1F6 .013"C .013"C .014-.016" 60±3° 4
MG Midget N9Y .024-.026" SU HS2 .012"C .012"C .014-.016" 57-63° 5
MGB N9Y .024-.026" SU HIF4 .015"C .015"C .014-.016" 57-63° 6
BMW  Bosch                
2002 WG135T30 .028" Solex DIDTA .007"C .007"C .016" 59-65° 7
2002Tii W175T30 .024-.028" Kugel. Injection .007"C .007"C .024" 60±1° 8
Bavaria & 3.0 CS WG135T30 .028" Zenith 35/40 INAT .011"C .011"C ..... 35-41° 9
CAPRI  Auto lite                
2000 BRF-42 (1) Mocraft. 5200 .008"H .010"H .025" 35-41° 10
2800 AGR-42 (1) Mocraft. 5200 .014"H .016"H .024" 35-41° 11
COLT  Champion                
1600 N9Y .030" Solex 28/32 DIDTA .006" H .010"H .018-.022" 49-55° 12
2000 N9Y .030" Solex 30/32 DIDTA .006"H .010"H .018-.022" 49-55° 13
COURIER  Autolite                
Pickup AG32A .029-.033" Zen Strom 2-Bbl. .012"H .013"H .018-.022" 49-55° 14
DATSUN  NGK                
610 B6ES .028-.031" Hitachi DCH340 .008"C .010"C .018-.022" 49-55° 15
620 B6ES .028-.031" Hitachi DCH340 .008"C .010"C .018-.022" 49-55° 16
710 B6ES .028-.031" Hitachi DCH340 .008"C .010"C .018-.022" 49-55° 17
B210 BP5ES .031-.035" Hitachi DCH306 .014"H .014"H .018-.022" 49-55° 18
260Z BP6ES .031-.035" Hitachi HMB46W .008"C .010"C .012-.016" ..... 19
FIAT  Champion                
124 N7Y .020-.024" Weber 34DMSA1(1) .018"C .020"C .013"(2) 55±3°(3): 20
128 Sedan, Wagon N9Y .020-.024" Weber 32DMTRA .012"C .018"C .014" 55±3° 21
128 X1/9 N9Y .020-.024" Weber 32DMTRA .012"C .016"C ..... 55° 22
HONDA  NGK                
Civic ..... .027-.031" Hitachi DCG306 ..... ..... .018-.022" 49-55° 23
JAGUAR  Champion                
XJ6 N11Y .025" Zen Strom 175CD2SE .012-.014"C .013"C .015" 38±3° 24
XJ12 N10Y .025" Zen Strom 175CD2SE .012-.014"C .013"C (1) 22-27° 25
V12 "E" Type N10Y .025" Zen Strom 175CD2SE .012-.014"C .013"C (1) 22-27° 26
JENSEN  Champion                
Jensen-Healey N7Y .025" Zen Strom 175CD2SE .006"C .011"C .014-.016" 57-63° 27
Jensen Interceptor III J11Y .035" Carter Thermo Quad Hydraulic Hydraulic (2) (2) 28
LOTUS  Champion                
Twin Cam N7Y .023-.025" Zen Strom 175CD2SE .006"C .010"C .015" 60±3° 29
LUV  NGK                
Pick-jp BP6ES .030-.040" Hitachi DRJ340 .004"C .006"C .016-.024" 49-55° 30
MAZDA  NGK                
Rotary B7EMV .024-.Q28" Zen Strom 4-Bbl. ..... ..... .018" 55-61° 31
808 BP6ES .031" Zen Strom 2-Bbl. .012"H .012"H .020" 49-55° 32
Pickup ..... .029-.031" Zen Strom 2-Bbl. .012" H .012"H .018-.022" 49-55° 33
MERCEDES  Bosch                
230 W175T30 .024" Zen Strom 175CDT .003"C .008"C ..... 47±1° 34
280 & 280C W175T30 .024" Solex 4A1 .004"C .010"C ..... 34±1° 35
4.5 Liter W175T30 .024" Bosch Elec. Inj. .003"C .008"C ..... 30±1° 36
CARBURETORS: KUGEL.  - KUGELFISHER, MOCRAFT.  - MOTORCRAFT, ZEN STROM  - ZENITH STROMBERG.
VALVES: C  - SET COLD, - SET HOT. TRANSMISSIONS: M/Y  - Manual Transmission, A/T  - Automatic Transmission.
CAR MODEL SPARK PLUGS CARBURETOR VALVE CLEARANCE DISTRIBUTOR No.
Type Gap Make Model Int. Exh. Point Gap Cam Angle
OPEL  AC                
All Models 42FS .030" Solex DIDTA Hydraulic Hydraulic .018" 50±3° 37
PANTERA  Autolite       Zero Zero     38
All Models ARF-42 .035" Mocraft. 4300 Lash Lash (1).020" (2)32-35  
PEUGEOT  Champion     32 BISCA-2          
504 N-7Y .024-.028" Solex & 34 PBIC-8 .004"C .010"C .016" 55-59° 39
PORSCHE  Bosch                
911 W215P21 .022" Bosch CIS .004"C .004"C .016" 35-41°(1) 40
911S Carrera W235P21 .022" Bosch CIS .004" C .004"C .016" 35-41°(1) 41
914 1.8 Liter W175T2 .028" Bosch Elec. Inj. .006"C .006"C .016" 44-50° 42
914 2.0 Liter W175T2 .028" Bosch Elec. Inj. .006"C .008"C .016" 44-50° 43
RENAULT  Champion                
  R-12 N-5 .025-.028" Weber 32 DIR ..... ..... .016.020" 55±3° 44
  R-15 N-5 .025-.028" Weber 32 DIR ..... ..... .016-.020" 55±3° 45
  R-17TL N-5 .025-.028" Weber 32 DIR ..... ..... .016.020" 55±3° 46
  R-17G N-3 .025-.028" Bosch Elec. Inj. ..... ..... .016-.020" 57±3° 47
SAAB  Autolite                
V-4 AGR32 .025" Mocraft. 1250 1-Bbl. .014" .016" .016" 50±2° 48
99E AG22 .024-.028" Bosch Elec. Inj. .009" .017" .012-.016" 50±2° 49
SUBARU  NGK                
1400 BP6ES .032" Zen. Strom. DCJ360-5 .011-.013" .011-.013" .018-.022" 49-55° 50
TOYOTA  NGK                
3K-C BP6ES .030" Aisan 2-Bbl. .008"H .012"H .016-.020" 50-54° 51
2T-C BP6ES .030" Aisan 2-Bbl. .008"H .013"H .016.020" 50-54° 52
18R-C BP6ES .030" Aisan 2-Bbl. .008"H .014"H .016-.020" 50-54° 53
4M BP6ES .030" Aisan 2-Bbl. .007"H .010"H .016.020" 38-44° 54
F BP6ES .030" Aisan 2-Bbl. .008"H .014"H .016-.020" 38-44° 55
TRIUMPH  Champion                
Spitfire UN12Y .025" Zen. Strom. 150CDSEV .010"C .010"C .015" 38-40° 56
TR6 UN9Y .Q25" Zen. Strom. 175CDSEV .010"C .010"C .015" 34-37° 57
VOLKSWAGEN  Bosch                
Type 1 W145T1 .028" Solex 34PICT-3 .006"C .006"C .016" 44-50° 58
Type 2 W145T2 .028" Solex 34PDSIT-2, 3 .006"C .008"C .016" 44-50° 59
Type 4 W175T2 .028" Bosch Elec. Inj. .006"C .008"C .016" 44-50° 60
Type 14 W145T1 .028" Solex 34PICT-3 .006"C .006"C .016" 44-50° 61
Type 181 W145T1 .028" Solex ..... .006"C .006"C .016" 44-50° 62
Dasher W175T30 .028" Solex 32/35DIDTA .008"C .015"C .015" 47-53° 6J
VOLVO  Bosch                
B2OB(1) W200T35 .028-.032" SU HIF6 .021" .021" .014" 59-65° 64
B20F W200T35 .028-.032" Bosch CIS .017" .017" .014" 59-65° 65
B30A(1) W200T35 .028-.032" Zen. Strom. 175CD2SE .021" .021" Min.010" 40±3° 66
B30F W200T35 .028-.032" Bosch Elec. Inj. .021" .021" Min.010" 42±3° 67
CARBURETORS: KUGEL.  - KUGELFISHER, MOCRAFT.  - MOTORCRAFT, ZEN STROM  - ZENITH STROMBERG.
VALVES. C  - SET COLD, - SET HOT.
TRANSMISSIONS: M/T  - Manual Transmission, A/T  - Automatic Transmission.
No. IGNITION TIMING HOT IDLE FAST IDLE RPM EXHAUST CO READING At Idle Speed Remarks
Man. Trans. Auto. Trans.
1 2°ATDC(2) 600 (Min) ..... ..... .8-2% (1) - Surface Gap Type.
(2) - At idle.
2
3
3°ATDC
6°ATDC(2)
925 ±75
850-1000
925 ±75
850-1000
.....
.....
1.0±.6%(1)
1.5 ±.5%
(1) - W/A.I.R. disconnected, 1.5±5%.
(2) - At 900±50 RPM.
4
5
6
12°BTDC(1)
9°BTDC(1)
12°BTDC(1)
850
1000
850
850
.....
.....
1200-1300
1100-1200
1300-1400
2.0%
2.5%
2.5%
(1) - At 1500 RPM.
7
8
9
25°BTDC(1)
25°BTDC(2)
22°BTDC(3)
900±50
850-1000
900-1000
900±50
850-1000
900-1000
2000-2500
.....
1600-1700(5)
1.0-1.2%
(4)
.8-1.2%
(1) - At 1500 RPM.
(2) - At 2700 RPM.
(3) - At 1700 RPM.
(4) - Lean best idle.
(5) - Each carburetor.
10
11
(1)
(1)
750±25
750
650
650±25
(1)
(1)
(2) (3)
(2) (2)
(1) - See Tune-Up Decal.
(2) - Fed. M/T.15-.5%-Cal. 1.0-1.5%.
(3) - Fed. A/T.2-.5%-Cal..5-1.0%.
12
13
3°BTDC(1)
3°BTDC
800-900
800-900
800-900
800-900
2000
2000
.....
.....
(1) - Exc. Cal. M/T-TDC.
14 (1) (1) ..... (1) (1) (1) - See Tune-Up Decal.
15
16
17
18
19
12°BTDC(1)
12°BTDC(2)
12°BTDC(3)
5°BTDC
8°BTDC(3)
750
800
800
800
750
650
650
650
650
600
.....
.....
.....
.....
.....
3.0%(4)
1.5%
1.5%
1.5±.5%
1.0-1.6%(5)
(1) - At 750 RPM.
(2) - M/T 800 RPM; A/T 800 RPM in "D".
(3) - M/T 750 RPM; A/T 8°BTDC@600 RPM retard; 15BTDC@650 RPM advance.
(4) - A.I.R. disconnected.
(5) - M/T; A/T 6-1.2% A.I.R. disconnected.
20
21
22
TDC(4)
TDC(4)
TDC(4)
850±50
850±50
850±50
700-750(5)
.....
.....
1550-1650(6)
.....
.....
.5±.3%
1.0±.5%
1.0±.5%
(1) - St. Wgn., 32 DSMA.
(2) - Trailing set.
(3) - Leading set.
(4) - At 850 RPM.
(5) - St. Wgn.
(6) - A/T 1250-1350.
23 5°BTDC ..... ..... ..... .....  
24
25
26
TDC(2)
4°ATDC
4°ATDC(2)
.....
.....
650
750
750
750
.....
1600-1700
1600-1700
4.5%
4.5%
4.5%
(1) -.020-.022" module gap.
(2) - At idle w/vac. connected.
27
28
TDC(1)
10°BTDC±2°
950-1000
800
.....
.....
.....
1800
2.5%
.....
(1) - Vac. connected.
(2) - Electronic ignition.
29 5°BTDC 800-900 ..... ..... .....  
30 12°BTDC(1) 700(2) ..... ..... ..... (1) - At 700 RPM.
(2) - W/A.C. 90.0 RPM.
31
32
33
5°ATD(10)
8°BTDC
3°BTDC
900
(3)
800±25
750(2)
.....
.....
.....
.....
.....
.1-2.0%
.....
1.5-3.5%
(1) - Leading points; trailing points 10°ATDC.
(2) - In "D".
(3) - From 600 RPM, adjust mixture to highest RPM and lean 20 RPM.
34
35
36
10°BTDC
4°BTDC
5°BTDC
750-800
.....
.....
750-800
750-950
700-800
2600-2800
2400-2600
.....
0-1.5%
0-1.5%
.5-2%
 
No. IGNITION TIMING HOT IDLE FAST IDLE RPM EXHAUST CO READING At Idle Speed Remarks
Man. Trans. Auto. Trans.
37 TDC(1) 850-900 800-850(2) 3200-3300 1.0-2.0% (1) - At 900 RPM.
(2) - Transmission in Neutral.
38 20 BTDC (3) ..... 1300-1350 (4) (1) - Each
(2) - Combined
(3) (4) - See Tune-Up Decal
39 5 BTDC(1) 800-850 800-850 1400 (2) (1) - At 850 RPM
(2) - See Engine Tune-Up Decal
40
41
42
43
5°ATDC(2)
5°ATDC(2)
7.5° BTDC(3)
27° BTDC(4)
900±50
900±50
850±50
850±50
.....
.....
.....
.....
.....
.....
.....
.....
1.5±.5%
1.5±.5%
2.5±.5%
2.0±1.0%
(1) - Bosch; Marelli, 34-40°.
(2) - Vac. hose connected, @850-950 RPM.
(3) - Vac. hose disconnected, @800-900 RPM.
(4) - Vac. hose disconnected, @3500 RPM.
44
45
46
47
10°BTDC
10°BTDC
10°BTDC
TDC±1°
850±25
850±25
850±25
1000
650±25(1)
650±25(1)
650±25(1)
.....
.....
.....
.....
.....
4%(2)
4%(2)
4%(2)
2.5-3%
(1) - In Drive.
(2) - With Auto. Trans., 600 RPM and Air Pump disconnected. With Man. Trans., 750 RPM and Air Pump disconnected.
48
49
3°BTDC(1)
8°BTDC(1)
900(2)
850
.....
800
1900-2000
.....
.....
.....
(1) - At 800 RPM maximum.
(2) - Headlights on low beam.
50 6°BTDC(1) 700-800 700-800 ..... ..... (1) - At 700-800 RPM.
51
52
53
54
55
5°BTDC(1)
5°BTDC(2)
7°BTDC(5)
5°BTDC(5)
7°BTDC(5)
750
750(7)
650
700
650
.....
800(3)
800
750
.....
.....
.....
.....
.....
1-4%
1-4%(4)
1-4%
1-4%(6)
1-3%
(1) - At 750 RPM.
(2) - Calif. 10°BTDC. At 850 RPM.
(3) - Calif. 850 RPM.
(4) - Calif..5-3%.
(5) - At idle.
(6) - Calif. 1-2%.
56
57
2°ATDC
4°ATDC
800-850
800-850
.....
.....
1100(1)
1100(1)
2±1%
2±1%
(1) - Engine cold; 1500 RPM w/engine hot.
58
59
60
61
62
63
(1)
(2)
(3)
(1)
5°ATDC(4)
30°BTDC(5)
800-900
850-950
(6)
800-900
800-900
925±75
900-1000
900-1000
(6)
900-1000
.....
925±75
.....
.....
.....
.....
.....
.....
.....
.....
.....
.....
.....
.....
(1) - 7.5 BTDC, vac. disconnected, @ 800-900 RPM. Cal. M/T-5°ATDC, vac. connected.
(2) - M/T 10°ATDC, vac. connected @850-950; A/T 5°ATDC, vac. connected @900-1000.
(3) - 2-door 27° BTDC @3500.
(4) - At 800-900 RPM.
(5) - Vac. disconnected @3000 RPM.
(6) - 2-door 800-900 RPM; 4-door & wagon 900-1000 RPM.
64
65
66
67
10°BTDC
10°BTDC
10°BTDC
10°BTDC
800
800
800
800
700
700
700
700
.....
.....
.....
.....
2.5%
1.5%
2.5%
(2)
(1) - Canada only.
(2) - 1-1.5% M/T;.5-1.0% A/T.