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Engine Fasteners

Here is a list list of MGTD engine fasteners. The list includes original part numbers and replacement part numbers from Abingdon Spares and Moss Motors. Also included is a table of torque values for specified fasteners. This list was compiled by Dave DuBois, Stuart Lock and TA Terry.

Bolts

SIZE LENGTH
(INCH)
WRENCH SIZE DESCRIPTION/USE QTY ORIGINAL P/N ABINGDON P/N MOSS P/N
5 - 0.80MM6 - 1MM 5/8 2BA3/16W CAMSHAFT THRUST PLATECAMSHAFT THRUST PLATE BOLT ACTUALLY FOUND IN 2 ENGINES 2 AAA2356 5 - 84 320-130
5 - 0.75 Mm 1 9/16 1/8 W FAN TO PULLEY 4 AAA5213 7 - 23 320-120
6 - 1MM ½ 3/16W UPPER REAR MAIN SEAL 3 AAA6142 3 - 12 320-130
6 - 1MM ½ 3/16W ROCKER COVER SIDE BOSSES 3 AAA6142 3 - 12 320-130
6 - 1MM 5/8 3/16W OIL PICKUP TO BAFFLE 2 JA5117 3 - 169  
6 - 1MM 5/8 3/16W BAFFLE TO SUMP 4 JA5117 3 - 173  
6 - 1MM 5/8 3/16W OIL PICKUP COVER (LATE TD) 1 HP0405 3 - 167  
6 - 1MM 1 ½ 3/16W OIL PICKUP TO SUMP, DRILLED FOR SAFETY WIRE 2 ASL5853 3 - 161 320-150
6 - 1MM 1 ½ 3/16W TIMING CHAIN TENSIONER, DRILLED FOR SAFETY WIRE 2 AAA5792 5 - 8 320-150
6 - 1MM 2 5/8 3/16W OIL PUMP TO BLOCK (EARLY TD)
(LATE TD)
4
2
AAA5586 3 - 99 320-160
6 - 1MM 3 5/16 3/16W OIL PUMP TO BLOCK, DRILLED FOR SAFETY WIRE (EARLY TD)
(LATE TD)
2
4
AAA5586 3 - 99 320-160
6 - 1MM 3 ½ 3/16W OIL PUMP TO BLOCK, DRILLED FOR SAFETY WIRE 2 AAA3093 3 - 97 320-170
8 - 1MM ½ 3/16W OIL GALLERY PLUGS 5 X22968 3 - 8 328-100
8 - 1MM 5/8 3/16W FRONT BEARING PLATE TO BLOCK 2 AAA5343 3 - 40 320-260
8 - 1MM 5/8 3/16W TIMING CHAIN COVER TO FRONT BEARING PLATE 2 X15012 3 - 39 320-260
8 - 1MM 5/8 3/16W CAM BEARING DOWEL BOLTS ( DRILLED FOR SAFETY WIRE) 2 AAA5621 5 - 44 320-900
8 - 1MM 3/4 1/4W CLUTCH TO FLYWHEEL 6 AAA5609 13 - 47 321-028
8 - 1MM 3/4 1/4W ENGINE MOUNT CRADLE TO FRONT BEARING PLATE 4 ASL5829 3 - 42 320-260
8 - 1MM 3/4 1/4W GENERATOR ADJUSTING LINK 1 X15012 3 - 149 320-260
8 - 1MM 3/4 1/4W GENERATOR MOUNTING BRACKET TO BLOCK 2 CA1122 3 - 146 320-260
8 - 1MM 3/4 1/4W CLUTCH CABLE BRACKET TO SUMP (EARLY TD) 2 CA1122 13 - 31 320-260
8 - 1MM 3/4 1/4W OIL FILTER SUPPORT BRACKET (EARLY TD) 3 CA1122 USE 3 - 39 320-260
8 - 1MM 3/4 1/4W TIMING CHAIN COVER TO FRONT BEARER PLATE (2 BOLTS FROM REAR OF BEARER PLATE) 2 CA1122 3 - 39 320-260
8 - 1MM 7/8 1/4W WATER OUTLET ELBOW TO HEAD (TD) 4 CA1258 3 - 132 320-270
8 - 1MM 7/8 1/4W AIR CLEANER ELBOW TO CARBURETOR 4 CA1258 3 - 62A 320-270
8 - 1MM 7/8 1/4W WATER PUMP (SHORT BOLT) 1 CA1258 7 - 27 320-270
8 - 1MM 7/8 3/16W SUMP TO BLOCK (CENTER BOLTS) 10 LA7431 3 - 74 320-270
8 - 1MM 7/8 3/16W SUMP TO TIMING CHAIN COVER (DEEP HEAD) 2 AAA5340 3 - 73 320-265
8 - 1MM 1 1/4W WATER PUMP (LONG BOLT) 1 JA5052 7 - 28 320-625
8 - 1MM 1 * REAR PLATE TO HEAD (* SCREW HEAD) 4   3 - 50 323-180
8 - 1MM 1 1/4W BELL HOUSING TO ENGINE 10 JA5052 3 - 58 321-048
8 - 1MM 1 1/4W BOTTOM GENERATOR MOUNTING 2 X22853 3 - 153/157 320-625
8 - 1MM 1 1/8 3/16W SUMP TO BLOCK (DEEP HEAD SLOTTED - REAR 2 BOLTS) 2 AAA5341 3 - 75 320-615
8 - 1MM 1 1/4 13MM GUDGEON PIN CLAMP BOLTS (ORIGINAL BOLTS HAD 1/4W HEADS) 4 CA1009 5 - 17 320-890
8 - 1MM 1 7/8 1/4W TIMING CHAIN COVER TO ENGINE 3 AAA5286 3 - 36 320-300
8 - 1MM 2 1/4W TIMING CHAIN COVER TO ENGINE (2 LOWER BOLTS) 2 AAA5231 3 - 35 320-310
8 - 1MM 2 1/4 13MM1/4W ROD BIG END BOLTS (WITH SELF LOCKING NUTS) (DRILLED FOR COTTER PIN) 8 AEF123 5 - 15 320-880
8 - 1MM 3 5/16 1/4W ROCKER TOWER 4 AAA5670 5 - 57 320-330
10 - 1.5MM 3/4 5/16W CARBURETOR TO MANIFOLD 4     320-510
10 - 1.5MM 7/8 3/8W FLYWHEEL TO CRANKSHAFT, DRILLED FOR SAFETY WIRE 4 AAA5609 13 - 61 321-108
10 - 1.5MM 1 5/16W STARTER TO BLOCK 2     320-510
10 - 1.5MM 3 ½ 5/16W ROCKER TOWER 4 AAA5692 5 - 58 320-530
12 - 1.5MM 7/8 5/8W CRANKSHAFT PULLEY BOLT/STARTING DOG (CAN USE 1 1/8 SAE WRENCH) 1 AAA5279 5 - 30 433-450
12 - 1.5MM 1 3/8W19MM TIMING GEAR TO CAMSHAFT (SOME BOLTS COME WITH THIS LARGER HEAD) 1 AAA5788 5 - 35 320-670
1/4 - 26 BSF 1 1/4 3/16W ENGINE BREATHER PIPE CLAMP BOLT (SOME OF THESE MAY BE 6 - 1MM) 1 CA1263 USE 23 - 125 320-200
1/4 - 20 W 1 3/8 1/4W DISTRIBUTOR CLAMP PINCH BOLT (EARLY TD) 1      
5/16 -22 BSF 3/4 1/4W CLUTCH RETURN SPRING BRACKET TO SUMP 1 AJG6255Z 13 - 22 320-360
5/16 -22 BSF 3/4 1/4W AIR CLEANER TO CARBURETOR (TD MKII) 4   23-185 320-360
5/16 - 18 W 5/8 1/4W TOP GENERATOR MOUNTING BOLT (5/16 - 18 SAE BOLT FITS) 1 3H2092 3 - 151 322-510
3/8 - 20 BSF 4 ½ 5/16W OIL FILTER HOUSING 1 300852 3 - 197  

Studs

SIZE LENGTH
(INCH)
WRENCHSIZE DESCRIPTION/USE QTY ORIGINAL P/N ABINGDON P/N MOSS P/N
6 - 1MM 1 7/8 N/A TAPPET COVER STUDS 3 AAA5595 3 - 16  
8 - 1MM 1 1/4 N/A WATER OUTLET ELBOW TO THERMOSTAT HOUSING STUD 2 CB1717 3-31 328-730
8 - 1MM 1 7/8 N/A LONG WATER PUMP STUD 1 X20167 3 - 30 328-750
8 - 1MM 1 3/4 N/A SHORT WATER PUMP STUD 1 JB5969 3-31 328-750
8 - 1MM 4 N/A MANIFOLD TO HEAD 4 AAA5773 3 - 47 328-760
8 - 1MM 5 1/4 N/A ROCKER COVER STUDS 2 AAA5552 3 - 46 328-770
10 - 1.5MM 2 N/A CARBURETOR TO MANIFOLD STUDS (TD MKII) 4 QA11791 3 - 121 328-810
10 - 1.5MM 1 1/2 N/A EXHAUST FLANGE TO MANIFOLD STUDS 3 X15126 3 - 62A 328-808
10 - 1.5MM 4 3/8 N/A HEAD TO BLOCK STUDS 10 AAA5512 3 - 13 328-780
12 - 1.5MM 3 1/8 N/A MAIN BEARING CAP TO BLOCK STUDS 6 LA7104 5 - 85 328-830

Plugs

SIZE LENGTH
(INCH)
WRENCH SIZE DESCRIPTION/USE QTY ORIGINAL P/N ABINGDON P/N MOSS P/N
10 - 1.5MM N/A 3/15W CENTER OIL GALLERY PLUG 1 X20247 3 - 9  
12 - 1.5MM 5/16 * FRONT OIL GALLERY PLUG (*SCREW HEAD, STEEL) 1 X22732 65 - 57 328-020
12 - 1.5MM 9/16 * REAR OIL GALLERY PLUG (*SCREW HEAD, BRASS) 1 X15393 65 - 57 328-030
12 - 1.5MM N/A 5/16W OIL PUMP BODY PLUG (LATE TD) 1 163138 3 - 212  
12 - 1.5MM N/A 5/16W OIL PUMP COVER 2 10798 3 - 215  
12 - 1.5MM N/A 5/16W SUMP OIL PICKUP PORT PLUG 1 10798 3 - 215  
21 - 1MM N/A 9/16W RELIEF VALVE CAP (CAN USE 1" SAE WRENCH) 1 AAA5628 3 - 111  
½-14 BSP N/A 1/2W SUMP OIL DRAIN PLUG 1 AAA2599 3 - 68 328-120

Nuts

SIZE LENGTH
(INCH)
WRENCH SIZE DESCRIPTION/USE QTY ORIGINAL P/N ABINGDON P/N MOSS P/N
8 - 1MM N/A 1/4W WATER PUMP STUD NUT 2 CA1126 3 - 51 311-100
8 - 1MM N/A 1/4W WATER OUTLET ELBOW TO THERMOSTAT HOUSING STUD 2 CA1126 USE 3-51 311-100
8 - 1MM N/A 1/4W FRONT ENGINE MOUNT CRADLE TO FRONT BEARING PLATE 4 CA1126 3 - 43 311-100
8 - 1MM N/A 1/4W MANIFOLD CLAMP NUT 4 CA1126 3 - 66 311-100
8 - 1MM NA 1/4W13MM ROD BIG END CAP BOLT NUT (ORIG. CASTELLATED FOR COTTER PIN) ( SELF LOCKING TYPE) 8 AEF131 5 - 16 311-080
10 - 1.5MM N/A 5/16W HEAD STUD NUT 10 AAA5208 3 - 56 311-200
10 - 1.5MM N/A 5/16W EXHAUST FLANGE TO MANIFOLD NUT (BRASS) 3 CA1605 3 - 63 311-200
12 - 1.5MM N/A 7/16W MAIN BEARING CAP STUD NUT (CASTELLATED FOR COTTER PIN) 6 AEF199 5 - 5 311-270
1/4 - 26 BSF N/A 3/16 ENGINE BREATHER PIPE CLAMP BOLT NUT (SOME OF THESE MAY BE 6 - 1MM) 1 CA1254 USE 23 - 425 311-050
1/4-26 BSF N/A 3/16W DISTRIBUTOR COTTER BOLT NUT (LATE TD) 1 CA1254   311-050
1/4 - 20 W N/A 1/4W DISTRIBUTOR CLAMP PINCH BOLT NUT (EARLY TD) 1      
3/8 - 20 BSF N/A 5/16W CLUTCH LINKAGE FULCRUM PIN NUT (CASTELLATED FOR COTTER PIN) 2 AAA5802 13 - 26 311-240

Miscellaneous

SIZE LENGTH
(INCH)
WRENCH SIZE DESCRIPTION/USE QTY ORIGINAL P/N ABINGDON P/N MOSS P/N
2BA 3/4 * BYPASS ELBOW TO THERMOSTAT HOUSING (*SLOTTED CHEESE HEAD SCREW) 2 AJD320 7-66 323-040
8-1MM 7/8 1/4W DISTRIBUTOR LOCK BOLT (EARLY TD) 1 AAA5212 35 - 93 433-530
1/4-26 BSF N/A N/A DISTRIBUTOR COTTER BOLT (LATE TD) 1 AAA2776 35 - 90 433-540
3/8-20 BSF N/A N/A CLUTCH LINKAGE FULCRUM PIN 2 X23049 13 - 27 190-390
1/8 BSP N/A 3/16W BLOCK WATER DRAIN TAP 1 3H2724 3 - 14 434-240
1/8 BSP 1 5/16W OIL PIPE BLOCK TO HEAD BANJO BOLT (EARLY TD)
(LATE TD)
2 X21021
AAA5550
3 - 115A
3 - 115
435-465
435-490
1/4 BSP 1 1/8 1/2W FILTER TO BLOCK OIL PIPE (EARLY TD) 3 X19089 3 - 86 435-480

Torque Values for XPAG Engines

Engine

Description Torque
GUDGEON PIN CLAMP BOLT 25 LBFT
ROD BIG END BOLTS 25 LBFT
MAIN BEARING CAP NUTS 63 LBFT
FLYWHEEL TO CRANKSHAFT BOLTS 50 LBFT
CLUTCH PRESSURE PLATE BOLTS 19 LBFT
OIL PICKUP PIPE TO SUMP BOLTS 6 LBFT
CAMSHAFT LOCATING PLATE BOLTS 6 LBFT
CAMSHAFT SPROCKET BOLT 50 LBFT
TIMING CHAIN TENSIONER BOLTS 6 LBFT
SUMP TO BLOCK BOLTS 19 LBFT
TIMING CHAIN COVER BOLTS 19 LBFT
CRANKSHAFT PULLEY BOLT 50 LBFT
CYLINDER HEAD NUTS 50 LBFT
ROCKER TOWER BOLTS (8 MM) 16 LBFT
ROCKER TOWER BOLTS (10 MM) 43 LBFT
OIL PUMP TO BLOCK BOLTS 6 LBFT

Other

Description Torque
WATER PUMP PULLEY NUT 10 LBFT
GENERATOR PULLEY NUT 35 LBFT
TRANSMISSION OUTPUT FLANGE NUT 65 LBFT
REAR AXEL HUB NUT 170 - 200 LBFT
FRONT AXEL HUB NUT 40 - 70 LBFT
WHEEL LUG NUTS 50 LBFT

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