|
5 September 2003 |
If you have
the engine tag still attached to the engine - just in front/below the
thermostat housing - or perhaps the original engine number in the log book then
the following should help you determine which engine you have.
For Metro
units, see 'Engine -
Metro identification data'.
Original
engine identification numbers
850cc
|
8A |
|
|
8MB |
Morris up to 25000 |
|
8AM |
Austin & Morris 25000 onwards |
|
8AH |
Austin & Morris Automatic |
|
8AJ |
Austin & Morris closed circuit breathing |
|
8AK |
|
|
8WR |
Wolseley Hornet & Riley Elf |
|
8AC |
Moke |
|
85H/101 |
All variants 1969 onwards |
Note: third suffix letter denotes
compression type, L = Low, H = High, e.g. 8AM/U/H101 denotes high compression.
998cc
|
9WR |
Wolseley Hornet & Riley Elf Mk2, pre closed circuit breathing |
|
9AD |
Austin, Wolseley Hornet & Riley Elf Mk2 with remote type gearbox and closed circuit breathing |
|
9AE |
Wolseley Hornet & Riley Elf Mk3 |
|
99H/-/101 on |
Wolseley, Riley, Mini 1000, Clubman1000 1970 onwards and Mk3 with dished piston |
|
99H/791 |
Mini 1974 onwards with dished piston |
|
99H/997 |
1980 onwards A+ block, flat top pistons, economy fitment with 2.95 final drive |
|
99H/A97P |
A+ block with dished pistons, pre-A+ gears, 3.44 final drive & 12-inch wheels |
998 A+ block
with centre locating tang in main cap, 1985 onwards
Flat top
piston with circlip wrist pin retention
|
99H/B81 |
Up to engine number 127431 |
|
99H/C20 |
Up to engine number 105023 |
|
99H/997 |
From engine number 127422 with 2.95 final drive |
|
99H/A35P |
|
Flat top
piston with press fit wrist pin
|
99H/B81 |
From engine number 127432 |
|
99H/C20 |
From engine number 105024 |
|
99H/D80 |
|
Flat top
pistons with press fit wrist pins, Lead-free cylinder head
|
99H/G30 or G32 or G33 |
|
|
99H/F15 or F16 |
|
|
99H/E20 or E21 |
|
|
99H/D81 |
|
|
LBB10089 |
|
Dished
pistons with circlip wrist pin retention
|
99H/B83P |
Up to engine number 102908 |
|
99H/B84P |
Up to engine number 100216 |
Dished
pistons with press fit wrist pin
|
99H/B83P |
From engine number 102909 |
|
99H/B84P |
From engine number 100217 |
Dished
pistons with press fit wrist pin, Lead-free
|
99H/G31 |
|
|
99H/E22 |
|
|
LBB10175 |
|
1100cc
(1098cc)
|
10AMW/Ta |
Clubman Estate and |
|
10H791 |
Clubman saloon |
|
10H/-/H |
All |
|
10GR/Ta/H |
MG1100 (ADO16 shape) |
|
10GRB/Ta/H |
MG1100 & Wolseley 1100 (ADO16) |
|
10V/Ta/H |
Vanden Plas 1100 (ADO16 shape) |
997
Cooper
|
9F/Sa/H101 to 2637 except 19201 to 20410 (became 1070S) |
998
Cooper January 1964 onwards)
|
9FA/Sa/H |
Mk1 Austin pre closed circuit breathing |
|
9FD/Sa/H |
Mk1 Morris up to engine number 1934, all Austin Mk2 closed circuit breathing and Morris Mk2 from engine number 1935-33660 with closed circuit breathing |
|
9FD/Xe/H |
4 syncro gearbox introduced |
|
99/-/H |
Last of manufacture 1969 |
Cooper S
variants
970cc
|
9F/Sa/X |
Engine numbers 29001-29003 with Tecalamit filter |
|
9FD/Sa/X |
Closed circuit breathing introduced with Tecalamit filter |
|
9FE/Sa/X |
Closed circuit breathing, oil filter with oil light switch introduced |
|
9F/Sa/X |
Engine numbers 29039-30029 Purolator oil filter with oil light switch and closed circuit breathing |
1070cc
|
9F/Sa/H |
Engine numbers 26501 to 33660 and 19201 to 20410 |
|
9FD/Sa/H |
Engine numbers 33661 to 33948 with closed circuit breathing and oil light switch in oil filter head |
1275cc
|
9F/Sa/Y |
Engine numbers 31001 to 31504 pre closed circuit breathing with Purolator oil filter |
|
9FD/Sa/Y |
Closed circuit breathing with oil light switch on filter housing after engine number |
|
|
32178 |
|
9FE/Sa/Y |
Closed circuit breathing with oil light switch on Purolator filter housing and piston |
|
|
design change |
|
9F/Sa/Y |
From engine number 32378 onwards, closed circuit breathing with Purolator filter with oil light switch, Aeg510 camshaft introduced at engine number 40006, cross- drilled EN40Bcrank at engine number 42730 and metal dipstick tube at engine number 42548 onwards |
|
12H397 |
Cooper S Mk3 with dynamo, negative earth and Tuiftrided EN16T crankshaft |
|
12H398 |
Cooper S Mk3 with alternator, negative earth and Tuftrided EN16T crankshaft |
Note: Only Cooper S engines with prefix
'9F' had EN40B forged steel, nitrided crankshafts. All other A-series engines had
EN16T steel crankshafts which were only Tuftrided on Mk3 'S' and Austin 1300GT
(ADO16) and were stamped 12G1683.
1275cc,
Solid wall block (no tappet chest covers)
|
12G/Ta/H |
ADO17 shape Wolseley, Riley, MG & Vanden Plas fitted with S rods |
|
12H379 |
1275GT with dynamo, negative earth, electric fuel pump and remote type |
|
|
gearbox |
|
12H380 |
1275GT with alternator, negative earth, electric fuel pump and remote type |
|
|
gearbox |
|
12H389 |
1275GT with dynamo, negative earth, mechanical fuel pump and remote type |
|
|
gearbox |
|
12H390 type |
1275GT with alternator, negative earth, mechanical fuel pump and remote |
|
|
gearbox |
|
12H706 change |
1275GT with alternator, negative earth, mechanical fuel pump and rod |
|
|
gearbox |
|
12H397 |
Cooper S Mk3 with dynamo and negative earth |
|
12H398 |
Cooper S Mk3 with alternator and negative earth |
|
12H/-/ |
1275 |
|
12H610/635 |
Innocenti Mini with duplex cam drive gears and 11-stud head |
|
12H719/832 |
Innocenti Mini with simplex cam drive gears and 11-stud head |
1275cc,
1990 onwards (12A numbers)
|
12A/2A |
Carburettor type |
|
12A/2B |
Carburettor and catalyst type |
|
12A/2D |
SPi (Single Point injection - Tbi, throttle body injection) with 9.4-1 CR |
|
12A/E |
SPi (Tbi - throttle body injection) with 10-1 CR |
|
With the following suffixes: |
|
|
F53 |
10.0-1CR, 3.105 final drive, catalyst, oil cooler |
|
F75 |
9.4-1CR, SPi, 3.105 final drive, closed loop catalyst |
|
F76 |
9.4-1CR, automatic with closed loop catalyst |
|
F77 |
10.0-1CR, SPi Cooper, 3.2 final drive, closed loop catalyst |
|
G01 |
10.0-1CR, 3.105 final drive, catalyst, no oil cooler |
|
G03 |
9.4-1CR, 3.105 final drive, catalyst, May 1992 onwards |
|
G04 |
9.4CR, 2.76 final drive, catalyst, French only spec |
|
G05 |
9.4-1CR, automatic with catalyst |
Factory
replacement engine reference numbers (i.e. New, and Gold and Silver Seal units)
|
8G28 |
850cc - Oil feed to primary gear type crank with 1.375-inch tail shaft |
|
8G35 |
850cc - Deva bush conversion type crankshaft with 1.375-inch tail shaft |
|
8G45 |
850cc - Gold Seal, 1.5-inch self oiling primary gear/crankshaft type |
|
GSE1101E |
850cc - Gold Seal unit |
|
RKM1101E |
850cc - Silver Seal unit |
|
BHM1307E |
850cc - Gold Seal unit, 85H prefix replacement |
|
8G18 |
997cc Cooper - Oil feed to primary gear type crankshaft |
|
8G29 |
997cc Cooper - Deva bush type primary gear and crankshaft |
|
8G36 |
997cc Cooper - Oil feed converted primary gear and crankshaft |
|
8G33 |
998cc Cooper - Fitted with 28G193 (12G202) cylinder head |
|
8G40 |
998cc Cooper - 28G222 (12G295)cylinder head introduced |
|
8G42 |
998cc Cooper - Closed circuit breathing rocker cover and side plates |
|
8G49 |
998cc Cooper - Purolator oil filter with oil light switch introduced |
|
GSE1103E |
998cc Cooper - Gold Seal unit, was RKM1120E Silver Seal |
|
RKM1103E |
998cc Cooper - Silver Seal unit |
|
8G57 |
998cc - New from 1969 and exchange for all pre-A+ up to 1981 |
|
GSE1102E |
998cc -Gold Seal unit, was RKM1119E Silver Seal unit, pre-A+ up to 1981 |
|
RKM1102E |
998cc - Silver Seal unit, pre-A+ up to 1981 |
|
RKM1119E |
998cc - Silver Seal unit, replaced by RKM1102E, pre-A+ up to 1981 |
|
BHM1232 |
998cc - Low compression dished piston, CAM6267 camshaft, early cylinder head and crankshaft main bearings with side locator tang, A+ |
|
BHM1377 |
998cc - High compression flat top piston, CAM4717 camshaft, early cylinder head and crankshaft main bearings with side locator tang, A+ |
|
BHM1458 |
998cc - Low compression piston, CAM6267 camshaft, late A+ cylinder head and crankshaft main bearings with central locator tang, A+ |
|
BHM1460 |
998cc - High compression press-fit wrist pin piston, CAM4717 camshaft, late A+ cylinder head and crankshaft main bearings with central locator tang, A+ |
|
LBB10089 |
998cc - Low compression press-fit wrist pin piston, CAM6267 camshaft, lead -free late A+ cylinder head and crankshaft main bearings with central locator tang, A+ |
|
8G156E |
1100cc - Clubman, Special and Austin 1100 (ADO16) |
|
RKM1150E |
1100cc - Silver Seal unit for Clubman and Special |
|
RKM1151E |
1100cc - Silver Seal unit for Clubman and Special |
|
BHM1042 |
1100cc - New and Gold Seal units for Clubman and Special, 1974-1980 |
|
BHM1229 |
1100cc - New and Gold Seal units for Clubman and Special, A+ Block, 1980 on |
|
8G38 |
970cc - Gold Seal unit, pre closed circuit breathing, Cooper S |
|
8G41 |
970cc - Gold Seal unit with closed circuit breathing sideplates, Cooper S |
|
8G46 |
970cc - Gold Seal unit with oil light switch in filter housing, Cooper S |
|
8G133 |
1070cc - Gold Seal unit, pre closed circuit breathing, Cooper S |
|
8G153 |
1070cc - Gold Seal unit with closed circuit breathing side plates, Cooper S |
|
8G145 |
1275cc - Pre closed circuit breathing unit, Cooper S |
|
8G154 |
1275cc - Closed circuit breathing side plates unit, Cooper S |
|
8G155 |
1275cc - Oil filter housing with oil pressure light switch, Cooper S |
|
8G174 |
1275cc - Fitted with AEG510 camshaft, Cooper S |
|
38G464 |
1275cc - Introduced in 1970, most of which were fitted with EN16 Tuftrided crankshaft |
|
8G200 |
1275cc - New and Gold Seal units Clubman 1275GT |
|
38G527 |
1275cc - New and Gold Seal units for engine numbers prefixed 12H706, 12H707 & 12H831 for Clubman 1275GT |
|
RKM1130E |
1275cc - Silver seal unit, was RKM1112E, for Clubman 1275GT, pre-A+ |
|
RKM1152E |
1275cc - Silver Seal unit for Clubman 1275GT, pre-A+ |
|
RKM1112E |
1275cc - Silver Seal unit for Clubman 1275GT, pre-A+ |
|
BHM1220 |
1275cc - A+ unit for Clubman 1275GT |
|
8G199E |
1275cc - Gold Seal unit with Duplex cam drive gears for 1300GT (ADO16) and |
|
|
Innocenti 1300, 11-stud cylinder head |
|
38G559E |
1275cc - Gold Seal unit with Simplex cam drive gears for engine numbers prefixed 12H719 and 12H832, for 1300GT (ADO16) and Innocenti 1300, 11- stud cylinder head |
|
GSE1109E |
1275cc - Gold Seal unit for 1300GT (ADO16) and Innocenti 1300, 11-stud cylinder head |
|
|
|
|
RKM1133E |
1275cc - Silver Seal unit for 1300GT (ADO16) and Innocenti 1300, 11-stud cylinder head |
|
BHM1209E |
1275cc - Gold Seal unit, replaced all Innocenti 1300 engines from engine numbers prefixed 12H610, 12H635 and 12H832 |
Notes:
All engines
pre-fixed with 'GSE' or 'RKM' were of UNIPART origin when BL split its parts
organisation.
'E' at the
end of a part number denotes it is a reconditioned, service unit only (basic
engine assembly with no ancillaries).
'N' at the
end of a part number denotes a brand new unit.