This is a spreadsheet of the Javelin and Jupiter Parts book. If you find an error please mail me.
Also if you find an equivalent component that can be used, please detail any modifications required.
Illustration Item JowettPartNum RequiredQuantity Description
*  Denotes items common to Jupiter
t  Denotes items not illustrated
p  Denotes pairs
n  Denotes as required
TIMING CASE AND TAPPET COVERS
1 54662 1 Front Timing Case Cover 
*t 2 FB104/18 12 Timing Case Bolt 1/4in. B.S.F. 2 1/4in.
*t 3 FB104/19 2 Timing Case Bolt 1/4in. B.S.F. 2 3/8in.
*t 4 52197 1 Timing Case Stud
5 6411 1 Filler Cap
* 6 52161 1 Filler Washer
7 52155 1 Oil Filler Tube Assembly.
*t 8 FS105/8 1 Oil Filler Setscrew
* 9 54542 1 Dipstick.
* 10 50694 1 Crankshaft Front Seal.
* 11 50871 1 Crankcase Vent Valve. 
* 12 52208 1 Breather Pipe Long.
* 13 52209 1 Union Nut
* 14 52203 1 Double Ended Union
* 15 ND392 2 Union Nut.
* 16 ND392A 2 Olive.
*t 17 53436 1 Balance Valve Assembly 
* 18 154547 1 Timing Case Rear Cover
* 19 FS105/8 1 Filter Drain Setscrew
*t 20 FB105/9 2 Bolt Timing Case Rear Cover
*t 21 52096 1 Tappet Cover Assembly R.H.
22 52097 1 Tappet Cover Assembly L.H.
* 23 52244 2 Air Vent Filter Felt
* 24 52071 2 Plug Lead Support
*t 25 FS504/4 24 Tappet Cover Bolts
CRANKCASE AND CYLINDER LINERS
* 35 50522/3 1 Crankcase complete with Bolts, Studs, Oil and Balance Pipes
*t 36 52137 2 Cylinder Block Dowel
* 37 50634 2 Timing Case Dowel
*t 38 50630 4 Cylinder Block Bolt
*t 39 50631 2 Cylinder Block Tie Bolt 
* 40 50632 4 Cylinder Block Nut
*t 41 FN109/K 4 Cylinder Block Tie Bolt Nut
*t 42 FB104/14 5 Cylinder Head Bolt,1/4 in. B.S.F. x 1 3/4 in.
43 50636 8 Cylinder Head Stud - Short
44 50637 8 Cylinder Head Stud - Long
t 45 52110 2 Cylinder Head Stud - Centre 
*t 46 50638 2 Cylinder Head Drilled Stud
* 47 50639 2 Valve Rocker Oil Pipe. 
* 48 54019 4 Cylinder Liner 
*t 49 52142 2 Liner Locating Plate 
*t 50 BR140 14 Sump Stud . 
*t 51 FD105/9 4 Water Inlet Stud .
*t 52 FD104/7 1 Oil Pump Stud - Short. 
*t 53 FD104/11 2 Oil Pump Stud - Long 
*t 54 50974 2 Clutch Housing Stud, 7/16in.x 1 3/8in.
*t 55 50975 4 Clutch Housing Stud, 3/8in.x 1 3/8in. .
*t 56 50976 4 Clutch Housing Stud, 3/8in x 1 5/8in
*t 57 52178 2 Clutch Housing Stud,3/8in.x 2 3/8in..
*t 58 52179 4 Engine Mounting Stud
* 59 52003 2 Fan Strut Anchor Pin 
60 52072 2 Water Transfer 
* 61 FD106/19 2 Water Transfer Stud 
*t 62 52381 n Cylinder Liner Shim, 003 in.
*t 63 50628 1 Internal Balance Pipe
*t 64 50635 5 Main Bearing Dowel
*t 65 52393 4 Tie Bolt Washer
*t 66 50625 4 Oil Gallery Plug . 
*t 67 J54395 2 Cylinder Head Gasket Centre Support
*t 68 J54396 2 Gasket Centre Support Distance Washer 
t 69 J54429 2 Distance Piece
CYLINDER HEADS AND ROCKER COVERS
t 78 52167 1 Cylinder Head - R H.
79 52166 1 Cylinder Head - L.H. 
* 80 50703 4 Rocker Cover Stud
* 81 50585 2 Carburettor Stud - Long
* 82 50586 2 Carburettor Stud - Short
* 83 50880 2 Carburettor Flange Packing
*t 84 52231 2 Cylinder Drain Tap
*t 85 50884 1 Exhaust Manifold - RH.
86 50883 1 Exhaust Manifold - L.H.
*t 87 FD105/8 8 Manifold to Head Stud
*t 88 FN105B 8 Manifold Brass Nut. 
*t 89 52031 2 Manifold to Exhaust Pipe Stud, 5/16in. x 1 3/8in.
*t 90 52193 2 Water Seal Washer Centre Head Stud
* 91 50854 2 Rocker Cover 
* 92 52235 4 Rocker Cover Washer. 
* 93 52164 4 Rocker Cover Self-locking Nut
* 94 50588 8 Push Rod Tube.
* 95 52140 16 Top Cover Drive Screw 
* 96 50704 2 Cylinder Head Top Cover
ENGINE SUMP
* 106 52078 1 Engine Sump. 
* 107 52012 1 Engine Sump Drain Plug
* 108 52067 1 Baffle Assembly. 
*t 109 FS104/6 4 Setscrew
CAMSHAFT AND CHAINWHEEL
* 119 J54538 1 Camshaft. 
* 120 54002 1 Camshaft Thrust Peg 
* 121 50664 1 Timing Chain. 
* 123 J54481 1 Camshaft Chainwheel 
* 124 J54482 1 Chainwheel Locking Plate. 
*t 125 FB105/6 2 Chainwheel Bolt
* 126 50882 1 Distributor Drive Shaft. 
* 127 50964 1 Distributor Circlip 
* 128 52474 1 Camshaft Thrust Plunger. 
* 129 50681 1 Camshaft Thrust Spring.
* 130 J54483 1 Camshaft Dowel. 
CRANKSHAFT ASSEMBLY
* 141 52010 1 Crankshaft complete with Dowel and Spigot Bearing
*t 142 50647R 1 Reconditioned Crankshaft complete
* 143 50699 1 Starting Dog
* 144 50700 1 Starting Dog Tab Washer
* 145 50576 1 Crankshaft Pulley
* 146 50649 1 Chain Pinion
* 147 50648 1 Oil Pump Drive Gear 
* 148 50583 1 Crankshaft Key 
* 149 52573 4 Front and Centre Main Bearing 
* 150 50646 2 Rear Main Bearing 
* 151 50633 1 Flywheel Dowel.
* 152 50601 1 Spigot Bearing.
OIL PUMP ASSEMBLY
*t 162 J54555/AS 1 Oil Pump complete
* 163 52402 1 Oil Pump Drive Spindle
* 164 50067 1 Oil Pump Spindle Washer
* 165 J54555 1 Oil Pump Body 
* 166 50673 1 Woodruff Key 
* 167 52348 1 Oil Pump Driving Gear
* 168 52347 1 Oil Pump Driven Gear 
* 169 50670 1 Spindle Circlip
* 170 50689 2 Oil Pump Dowel 
* 171 52468 1 Oil Pump Idler Spindle 
* 172 J54554 1 Oil Delivery Pipe.
*t 173 F5104/5 2 Pipe Elbow Setscrew
* 174 J54548 1 Oil Delivery Pipe Union Bolt
* 175 50680 1 Oil Release Valve Piston 
* 176 54388 1 Oil Release Valve Spring 
* 177 50864 1 Spring Retainer
* 178 50674 1 Oil Pump Cover and Filter Assembly
*t 179 FS104/5 3 Oil Pump Cover Setscrew,1/4in.B.S.F.x 5/8 in.
*t 180 FB104/8 1 Oil Pump Cover Bolt, 1 in. B.S.F. x 1in.
* 181 52180 1 Mills Pin, 1/8in. x 3/4in..
CONNECTING ROD, PISTON AND RINGS
* 192 J54493 4 Con Rod, Cap Assem inc Small End Bush, Bolts Tab Washers
*t 193 J54493/R 4 Reconditioned Connecting Rod complete
* 194 54022 8 Connecting Rod Bolt 
* 195 50654 16 Connecting Rod Bolt Tab Washer .
*t 196 J54444 4 Connecting Rod Bearing Assembly
* 197 52574 4 Connecting Rod - Drilled.
* 198 J54443 4 Connecting Rod - Plain
* 199 54020 4 Small End Bush
* 200 50660 4 Piston Pin
* 201 50661 8 Piston Pin Circlip
202 50656 4 Piston complete with Rings and Pin.
* 203 50659 4 Oil Scraper Ring
* 204 54021 4 Second Compression Ring (Stepped
* 205 54018 4 Top Compression Ring (Vacrom)
VALVE GEAR
* 215 54161 8 Tappet Assembly 
216 54162 8 Push Rod, complete
* 217 50735 8 Push Rod Adjusting Screw
* 218 FN204/K 8 Push Rod Locknut
* 219 50516 4 Exhaust Valve 
* 220 50518 4 Exhaust Valve Guide
* 221 50515 4 Inlet Valve
* 222 50517 4 Inlet Valve Guide 
* 223 50705 8p Valve Cones 
* 224 53307 8 Valve Spring Collar
* 225 53303 8 Valve Spring Seat
* 226 52964 8 Valve Spring - Outer
* 227 50709 8 Valve Spring - Inner
* 228 50711 2 Rocker Shaft
* 229 50713 2 Rocker Shaft Oil Pipe with Banjos
* 230 50717 2 Inlet Rocker with Bush - Cyl.1 and 4
* 231 50718 2 Inlet Rocker with Bush - Cyl.2 and 3
* 232 50722 2 Exhaust Rocker with Bush - Cyl.1 and 4
* 233 50723 2 Exhaust Rocker with Bush -.Cyl. 2 and 3
*t 234 50721 8 Rocker Bush 
* 235 50726 4 Short Rocker Shaft Spring 
* 236 50727 4 Long Rocker Shaft Spring
* 237 50728 4 Rocker Shaft Washer
* 238 50729 4 Rocker Shaft Circlip.
* 239 50710 4 Rocker Shaft Pedestal 
*t 240 52163 4 Rocker Shaft Pedestal Washer
OIL FILTER (TECALEMIT)
*t 250 53422 1 Tecalemit Oil Filter Assembly, complete
*t 251 53423 1 Tecalemit Oil Filter Case.
*t 252 53424 1 Tecalemit Oil Filter Element 
*t 253 53425 1 Bolt 
*t 254 53426 1 Spring 
*t 255 53427 1 Adaptor
*t 256 53429 1 Clamping Plate
*t 257 53430 1 Fibre Washer
*t 258 53431 1 Steel Washer
*t 259 53432 1 Circlip 
*t 260 53433 1 Dished Clamping Plate
*t 261 53434 1 Sealing Washer Bolt
*t 262 53435 1 Head Washer
*t 263 50686 2 Union (Oil Delivery Pipe)
*t 264 54157 4 Fibre Washer
*t 265 53428 1 Oil Filter Sealing Ring 
OIL COOLER (RADIATOR MOUNTED)
t 275 J54558 1 Oil Cooler Assembly 
t 276 J54557 1 Oil Cooler 
t 277 J54559 1 Flexible Bonded Hose - Inlet
t 278 J54560 1 Flexible Bonded Hose - Outlet
*t 279 J54548 4 Union Banjo Bolt 
*t 280 J54549 8 Fibre Washer
t 281 FB105/1A 4 Bolt - Cooler to Radiator
t 282 FN105/K 4 Nut
t 283 50935 8 Vertical Stay Pad Rubber
t 284 50934 4 Vertical Stay Pad Tube
t 285 50936 4 Vertical Stay Pad Washer
FRONT ENGINE MOUNTINGS
t 295 54001 2 Front Engine Mounting Rubber
t 296 50970 2 Torque Reaction Buffer
t 297 50978 1 Mounting Bracket Top - L.H.
t 298 50979 1 Mounting Bracket Top - RH.
t 299 50980 1 Mounting Bracket Bottom - L.H.
t 300 50981 1 Mounting Bracket Bottom - R.H.
ENGINE GASKETS AND SEALING (WASHERS) 
(D) denotes items contained in Decoke set
311 50698 1 Front Timing Case Gasket
* 312 52207 1 Sealing Washer (Vent Valve)
* 313 50692 1 Timing Case Rear Cover Gasket
* 314 50746 2 Tappet Cover Gasket(D)
*t 315 50643 4 Cylinder Liner Sealing Washer
316 50738 2 Cylinder Head Gasket (D)
* 317 52708 4 Water Transfer Seal (D)
* 318 50881 4 Carburetter Flange Gasket (D)
* 319 50867 2 Exhaust Gasket - Long (D)
* 320 50868 2 Exhaust Gasket -Short (D)
*t 321 52192 2 Water Seal Rubber Washer Centre Head Stud(D)
* 322 50869 2 Rocker Cover Gasket (D)
* 323 50767 1 Engine Sump Gasket
*t 324 52386 1 Oil Pump Paper Packing
*t 325 53428 1 Oil Filter Sealing Ring (Tecalemit)
*t 326 52027 3 Exhaust Flange Gasket(D)
* 327 52171 1 Timing Cover Felt Seal
* 328 J54552 1 Oil Pipe Elbow Washer
*t 329 52162 4 Rocker Oil Feed Banjo Washers(D)
* 330 52055 4 Rocker Cover Grommet (D)
* 331 J54549 2 Oil Pump Union Fibre Washers
* 332 50853 1 Water Pump Gasket
* 333 52013 1 Engine Sump Drain Plug Washer
* 334 52173 1 Oil Filter Drain Washer
*t 335 50629 2 Internal Balance Pipe Seal
*t 336 52013 2 Water Tap Fibre Washer
*t 337 50833 1 Petrol Pump Gasket
* 338 50832 1 Water Elbow Gasket
* 339 54038 1 Clutch Housing Gasket
t 340 1 Engine Overhaul Gasket Set
t 341 1 Engine Decarbonising Set
WATER PUMP ASSEMBLY
t 374 J54654 1 Water Pump, complete
* 375 50594 1 Water Pump Pulley
376 50821 1 Accessory Drive Belt
* 377 50613 1 Outer Oil Seal
* 378 50614 1 Outer Oil Pressing
* 379 50611 1 Water Pump Bearing
* 380 50612 2 Bearing Circlip
* 381 50609 1 Inner Oil Seal Housing
* 382 50608 1 Inner Oil Seal Felt
* 383 50610 1 Inner Oil Seal Washer
384 52710 1 Housing Cover
385 54360 1 Water Pump Greaser
* 386 50602 2 Water Pump Seal
* 387 J54414 1 Impellor Assembly
* 388 50615 1 Mills Pin .
* 389 50600 2 Water Pump Rear Bearing
390 J54518 1 Water Pump Spindle .
* 391 50616 1 Woodruff Key
392 J54505 1 Water Pump Housing Assembly
*t 393 52012 1 Plug (Heater Tap not fitted)
* 394 54011 1 Oil Cup.
FAN AND FAN SUPPORT ASSEMBLY
402 54333 1 Fan Support Strut-L.H.
t 403 54334 1 Fan Support Strut -RH.
t 404 J54425 2 Oddie Nut 
* 405 53798 1 Fan Assembly
406 FN406/K 1 Fan Locknut
RADIATOR AND FITTINGS
416 J54521 1 Radiator including Filler Cap and Ring-R.H.D.
t 417 J54522 1 Radiator including Filler Cap and Ring -L.H.D.
418 50826 1 Water Elbow L.H.
419 50829 1 Water Elbow -R.H.
420 52219 1 Water Pump Tap (De luxe only)
422 52164 1 Self-locking Nut 
* 423 52193 1 Flat Washer
t 424 54234 1 Heater Pipe Plug (Standard only) 
425 J54645 1 Radiator Filler Cap (AC. No.1571506).
426 54322 1 Radiator Cap Sealing Ring
HOSES AND CLIPS
* 436 50617 1 Water Pump Hose.
437 50751 1 Water Pump Hose Top 
438 50752 2 Water Pump Bottom
* 439 50618 2 Hose Clip
* 440 50753 1 Large Hose Clip
441 50754 5 Small Hose Clip
THERMOSTAT
* 451 50768 1 Thermostat
* 452 4022x3 1 Circlip
* 453 6228x1 1 Packing Washer
* 454 6228x2 1 Rubber
FLYWHEEL AND CLUTCH
* 480 52184AS 1 Flywheel Assembly with Ring Gear and Dowels
*t 481 50843 4 Flywheel Bolt
t 482 50844R 1 Reconditioned Cover and Pressure Plate Assembly- R.H.D.
t 483 50844/A/R 1 Reconditioned Friction Plate-R.H.D.
*t 484 52184R 1 Reconditioned Flywheel Assembly
485 50844AS 1 Cover and Pressure Plate Assembly-R.H.D.
*t 486 FS105/5 6 Pressure Plate Setscrew 
487 50844/A 1 Clutch Friction Plate-R.H.D.
* 488 50842 2 Clutch Dowel 
* 489 50838 1 Crankshaft Rear Oil Seal
* 490 50839 2 Ring Dowel.
*t 491 BR140 4 Stud-Clutch Housing to Base Cover and Sump
*t 492 50977 2 Stud-Clutch Housing to Gear Box
*t 493 50976 1 Stud-Clutch Housing to Starter
* 494 J54546 1 Starter Ring Gear
* 495 50836 1 Clutch Housing 
* 496 54038 1 Clutch Housing Packing
* 497 50861 1 Clutch Housing Base Cover
CLUTCH OPERATtNG MECHANISM
507 50458 1 Clutch Pedal-R.H.D.
* 508 50440 1 Draught Excluder.
* 509 50418 1 Pedal Pad 
510 52288 1 Pedal Distance Tube
t 511 FB107/28 1 Pedal Bolt, 7/16 in. B.S.F. x 3 1/2 in.
512 50461 1 Return Spring Link
* 513 50422 1 Pedal Return Spring-R.H.D.
* 514 50845 1 Clutch Throwout Bearing
* 515 50846 1 Clutch Operating Lever Fork-R.H.D.
* 516 50847 2 Clutch Pin.
* 517 50837 1 Lever Ball Pivot 
518 50462 1 Clutch Operating Rod -R.H.D.
* 519 50465 1 Clutch Rod Fork 
* 520 50466 1 Clevis Pin 
LEFT HAND DRIVE ONLY
t 530 2420/AS 1 Clutch Cover and Pressure Plate Assembly
t 531 52420/A 1 Clutch Friction Plate.
t 532 52295 1 Clutch Pedal only.
t 533 52296 1 Clutch Operating Rod.
t 534 52345 1 Clutch Lever Fork
t 535 50422 1 Pedal Return Spring-L.H.D.
GEARBOX
*t 559 J52000 1 Gearbox, complete - R.H.D. (Fits Jup R. or L.H.D.)
t 560 J52358 1 Gearbox, complete - L.H.D 
* 561 JA54339 1 Gearbox Casting only with Studs
* 562 JA50095 1 Gear Change Lever - R.H.D. (Fits Jup R. or L.H.D.)
t 563 J52389 1 Gear Change Lever - L.H.D. 
* 564 J50097 1 Gear Operating Shaft 
* 565 J50099 1 Gear Operating Lever 
* 566 J50103 1 Operating Shaft Spring 
* 567 J52697 1 Woodruff Key (36/5) 
* 568 J52691 1 Taper Pin 
* 569 J50078 1 Mills Pin
* 570 J50127 1 Operating Shaft Distance Collar 
* 571 J54544 1 Dipstick 
* 572 J50045 1 Filler Plug 
* 573 J52692 1 Filler Plug Washer 
* 574 J50094 1 Gear Lever Stop 
* 575 J50299 1 Drain Plug 
* 576 J50123 1 Clutch Housing Stud. 7/16 in. x 1 7/8 in.
*t 577 J52686 1 Clutch Housing Stud (10/10)
* 578 J52682 7 Selector Housing - Short Stud
* 579 J52683 1 Selector Housing - Long Stud
t* 580 J52681 2 Speedo Housing - Short Stud 
*t 581 J52684 1 Speedo Housing - Long Stud
* 582 J52685 1 Speedo Housing - Long Stud 
* 583 J50008 1 Speedo Housing Paper Packing 
* 584 J50044 1 Speedo Housing Extension Tube 
* 585 J50909 1 Rear Mounting Housing 
* 586 50907 1 Rear Mounting Bracket 
* 587 50910 2 Rear Mounting Rubber 
*t 588 FS104/4 4 Housing Setscrew, 1/4 in. B.S.F. x 1/2-in.
t 589 FS105 5 3 Bracket Setscrew 5/16 in. B.S.F. x 5/8 in.
* 590 J52733 1 Clutch Shaft 
* 591 J50007 1 Clutch Shaft Cover
* 592 J50037 2 Nut, 1 1/4 in. dia. (Clutch and Mainshafts) 
* 593 J50013 2 Tab Washer, 1 1/4 in. dia. 
* 594 J50015 2 Bearing Locating Ring 
* 595 J50016 1 Bearing Oil Thrower 
* 596 J50023 3 Spacing Washer (2 off - Layshaft) 
* 597 J54440 1 Top and 3rd Sliding Gear Sleeve 
* 598 J50024 1 Top and 3rd Gear Driving Dog 
* 599 J50030 2 Mainshaft Washer - Thick 
* 600 J50145 1 Mainshaft Washer - Thin 
* 601 J50028 3 Locating Pin 
* 602 J50029 3 Spring-locating Pin 
* 603 J50026 1 3rd Gear 
* 604 J50027 1 3rd Gear Bush 
* 605 J50031 1 2nd Gear 
* 606 J50046 1 2nd Gear Bush 
* 607 J54577 1 1st Sliding Gear 
* 608 J50033 1 1st and 2nd Sliding Dog 
* 609 J54578 1 1st Sliding Gear Lock Plunger 
*t 610 J54240 11 Synchro Ball 
*t 611 J50022 11 Synchro Ball Spring 
* 612 J50144 1 Mainshaft
* 613 J50038 1 Bearing Spacer Washer
* 614 J50035 1 Speedo Drive Wheel
* 615 J50070 1 Speedo Drive Shaft
* 616 J50069 1 Speedo Drive Bearing
* 617 J50068 1 Speedo Drive Pinion
* 618 J54410 2 Extension Bearing Locating Washer
*t 619 J50067 1 Mills Pin 
* 620 J50122 1 Sleeve Mainshaft Rear Bearing 
* 621 J50039 1 Extension Oil Seal 
* 622 J50120 1 Output Flange
* 623 J52694 1 Key 
* 624 J7724 1 Nut 
* 625 JA50075 1 Reverse Gear and Bush
* 626 J50074 1 Reverse Gear Shaft
* 627 J50071 1 Layshaft Front Washer
* 628 J54520 1 Layshaft Gear Cluster 
* 629 J50051 1 Layshaft Rear Pad 
* 630 J50052 1 Layshaft Rear Washer 
* 631 J54409 1 Layshaft
* 632 J50049 2 Layshaft and Reverse Shaft Peg 
* 633 JA54438 1 Selector Bar - 3rd and Top 
* 634 JA50086 1 Selector Bar -1st and 2nd
* 635 JA50083 1 Selector Change Lever Assembly
*t 636 JA50101 1 Selector Operating Lever Assembly
t 637 52390 1 Selector Change Lever - L.H.D.
* 638 J50083 1 Selector Change Lever - R.H.D.
* 639 J50100 1 Setscrew - Locking 
* 640 J50140 1 Reverse Selector Lock
* 641 J50112 1 Reverse Link Pin
* 642 J50126 1 Reverse Link Lock Spring
* 643 J50125 1 Reverse Post 
* 644 J50115 1 Reverse Lever - Short
* 645 J50116 1 Reverse Lever -Long
* 646 J50091 1 Reverse Selector Link
* 647 J50092 1 Reverse Selector Shaft
*t 648 J50079 1 Reverse Selector Shaft Setscrew
* 649 J50073 1 Reverse Selector Fork
* 650 J7725 1 Reverse Selector Ball
* 651 J50061 1 Reverse Selector Spring
* 652 J54242 1 Plug 
* 653 J50002 1 Selector Housing 
*t 654 J50058 1 Selector Housing Packing
*t 655 J50057 1 Selector Housing Packing
*t 656 J54243 2 Selector Housing Dowels
* 657 J50107 1 Plunger Housing
*t 658 J54244 2 Plunger Housing Set Pin
* 659 J50105 1 Plunger Pivot Lock
* 660 J50106 1 Plunger Pivot Rocker
* 661 J50108 2 Plunger Spring Seat