Aston Service Dorset : DB2/4 MkIII Engine Parts
       
      Aston Service Dorset : Aston Martin DB2 + DB2/4 MkI - MkII  
           
    Engine

     Cylinder Block (Plate A)
     Cylinder Head (Plate B)
     Crankshaft (Plate C)
     Timing Case (Plate D and E)
     Oil Filter (Plate F)
     Manifolds (Plate G)

  Fuel, Cooling + Exhausts

  Transmission

  Suspension + Steering

  Brakes + Pedal Gear

  Electrical + Instruments

  Chassis, Frame, Body, etc.
    For all Parts Catalogues, Workshop Manuals and Instruction Books please follow the link to the technical publications page.

Aston Service Dorset : Engine Parts

All DB2/4 MkIII cars are fitted with the 3.0 litres six cylinder engine, which came in four variations.

The various series of engines are identified by the group of letters preceding the engine number and this is usually found on the timing case near to the dynamo bracket.

The series identification is given below, together with the carburettor variations and output which were found in each series:


Series
B.H.P.
Carburettor Variations
DB/A
162
2 x SU (8.16:1)
DB/B
195
3 x Weber 35 DCO or 3 x SU HV6 (8.6:1)
DB/C
214
3 x Weber 45 DCO
DB/D
180
2 or 3 x SU HV6

The cylinder blocks of 3.0 litre units are always painted fire engine red.


We endeavor to stock all the parts to recondition the above engines, examples of the more popular parts are below :



Aston Service Dorset: Cylinder Block

Aston Service Dorset : Top Gasket Set   90187
  DBA 3.0 Litre Top Gasket Set

Top Gasket Sets contain all gaskets required for a top end rebuild or routine maintenance.

         
Aston Service Dorset : Bottom Gasket Set   90551
  DBA 3.0 Litre Bottom Gasket Set

Bottom Gasket Sets contains the additional gaskets required for a complete engine rebuild or routine maintenance.
         
Aston Service Dorset : Cylinder Liners   54631

78234
  Cylinder Liner, Front and Rear

Cylinder Liner, Intermediate
         
Aston Service Dorset : Oil Transfer Bolts   50044

50045

50309
  Oil Transfer Bolt, Main Bearing

Oil Transfer Bolt, Rear Main Bearing

High Pressure OIl Pipe
         
Aston Service Dorset : Washer Oil Transfer Bolts   50047   Washer, Oil Transfer Bolts
         
Aston Service Dorset : Front and Rear Cylinder Head Studs   122311   BSF Cylinder Head Stud, Front and Rear (4 required)
         
Aston Service Dorset : Intermediate Cylinder Head Studs   111871   BSF Cylinder Head Stud, Intermediate (10 required)
         
Aston Service Dorset : Plug Relief Valve   50050

50051
  Plug Relief Valve

Washer, Relief Valve Plug
         
Aston Service Dorset : Relief Valve and Spring   20-01-132

20-01-133
  Relief Valve

Spring, Relief Valve
         
Aston Service Dorset : Drain Tap   112112   Drain Tap
         
Aston Service Dorset : Front Bush Oil Pump Drive   123173


123174
  Front Bush for the Oil Pump Drive Shaft

Rear Bush for the Oil Pump Drive Shaft
         
Aston Service Dorset : Front Engine Bearer   78801   Front Engine Bearer

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Aston Service Dorset: Cylinder Head

Aston Service Dorset : Inlet Valve and Exhaust Valve   79048

54520

54384

50138
  Inlet Valve

Exhaust Valve

Inlet Valve Guide

Exhaust Valve Guide
         
Aston Service Dorset : Champion Spark Plugs   77647   Spark Plug - Champion
         
Aston Service Dorset : Valve Springs and Tappet   51841

50150

50148

50149
  Valve Tappet

Cap, Valve Spring

Inner Valve Spring

Outer Valve Spring
         
Aston Service Dorset : Camshaft Sprocket Set Screws   50164

50163

50173

119204
  Set Screw, Camshaft Sprocket (L)

Set Screw, Camshaft Sprocket (S)

Valve Cover Screw, Domed/Plated

Bolt for Cam Bearing Cap
         
Aston Service Dorset : Cylinder Head Nuts   111997

111881

50139

50140
  Welch Pug 7/8"

Screw Stainless Steel 1/4" BSF

Cylinder Head Nuts

Washer for Cylinder Head
         
Aston Service Dorset : Sprocket Exhaust Camshaft   50160   Sprocket, Camshafts

         
Aston Service Dorset : Valve Cover Oil Seal   50402

50403
  Housing, Oil Seal, Valve Cover

Cork Strip, Sealing, Valve Cover Oil Seal
         
Aston Service Dorset : Inlet Manifold Studs   111920


125440
  Inlet Manifold Stud BSF - 3 1/4" (18 required)

Inlet Manifold Stud BSF - 3 7/8"
(6 required)

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Aston Service Dorset: Crankshaft Assembly

All 3 litre power units, big end bearings are of the "thin wall shell" type in lead bronze, steel backed. All small end bearings are bush type of phosphor bronze.


Below is a table of tolerances for big end and main journal bearings to assist in working out which replacement bearings you will require:


Big End Bearing Tolerances (3 litre engines)
Bearing Lower Limit Upper Limit
Standard 1.99875" 1.999"
  50.7682mm 50.776mm
 
0.010" 1.98875" 1.989"
  50.514mm 50.521mm
 
0.020" 1.97875" 1.979"
  50.260mm 50.267mm
 
0.030" 1.96875" 1.969"
  50.006mm 50.013mm



Main Journal Bearing Tolerances (3 litre engines)
Bearing Lower Limit Upper Limit
Standard 2.49875" 2.499"
  63.4682mm 63.475mm
 
0.010" 2.48875" 2.489"
  63.214mm 63.221mm
 
0.020" 2.47875" 2.479"
  62.960mm 62.967mm
 
0.030" 2.46875" 2.469"
  62.706mm 62.713mm


Aston Service Dorset : Crankshaft   54350


90089
  Crankshaft made from Billet Steel for DBA engines (To Order)

Crankshaft Nut
         
Aston Service Dorset : Bearing Sets and Thrust Washer   71533


71537


50114
  Main Bearing Set, available in Std/.010"/.020"/.030"

Connecting Rod Bearing set, available in Std/.010"/.020"/.030"

Thrust Washer, Crankshaft
         
Aston Service Dorset : 3.0 Litre Piston Standard and High Compression   73413

73413H
  3.0 Litre Piston 8.6:1

3.0 Litre High Compression Piston 9.5:1
         
Aston Service Dorset : 3.0 Litre Connecting Rods   76399

54960
  VB6J Connecting Rods

DBA Connecting Rods

Manufacturer to our own original drawings.
         
Aston Service Dorset : Crankshaft Pulley   77823   Crankshaft Pulley
         
Aston Service Dorset : Ring Gear   50281   Starter Ring Gear
         
Aston Service Dorset : Spigot Bearing   122329

121687
  Clutch Shaft Spigot Bearing

Seal Ring
         
Aston Service Dorset : Dowel and Keys   50115

119614

119608
  Dowel, Thrust Washer

Woodruff Key Crankshaft

Woodruff Key Crankshaft
         
Aston Service Dorset : Main Bearing Housing Bolts   50111

111878
  Bolt, Main Bearing Housing

Nut, Nyloc 2BA
         
Aston Service Dorset : Sprocket Timing Chains   50117   Sprocket, Timing Chains
         
Aston Service Dorset : Flywheel to Crankshaft Bolts   78817

  Bolt, Flywheel to Crankshaft

         
Aston Service Dorset : 3.0 Connecting Rod Nuts   75939   Nut, Connecting Rod 3.0 Litre

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Aston Service Dorset: Timing Case

Aston Service Dorset : Timing Chains and Rubbing Strip   77851

50226

77918

50235
  Camshaft Drive Chain

Water Pump Drive Chain

Oil Pump & Distributor Drive Chain

Rubbing Strip and Rivets
         
Aston Service Dorset : Water Pump Repair Parts   20-05-115

125442

111740

111290

  Water Pump Seal

Water Pump Bearing

Circlip

Circlip
         
Aston Service Dorset : Sump Plug and Washer   114163

119502
  Sump Plug

Washer
         
Aston Service Dorset : Chrome Timing Case Cover Nuts   50210   Plated Timing Case Cover Nut

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Aston Service Dorset: Oil Filter

Aston Service Dorset : Oil Filter Element   20-01-746   Oil Filter Element
         
Aston Service Dorset : Dynamo Heat Shield   50350   Dynamo Heat Shield
         
Aston Service Dorset : Dynamo Pulley   52027   Dynamo Pulley
         
Aston Service Dorset : Dynamo Adjustment Link   50351

50352

121888

119401
  Dynamo Adjustment Link, Inner

Dynamo Adjustment Link, Outer

Bolts

Nuts

         
Aston Service Dorset : Distributor Spares   56118

56120

56122

56121
  Distributor Cap (Top & Side Entry)

Rotor Arm

Condenser

Contact Set
         
Aston Service Dorset : Pertronix Ignitor   56121EP

56121EN
  DB2 and DB2/4 Positive Earth

DB2 and DB2/4 Negative Earth

For further information go to the Pertronix Electronic Ignition page
         
Aston Service Dorset : Pertronix Flame Thrower Chrome   50305PC   DB2 and DB2/4 Pertronix Flamethrower Ignition Coil in Chrome

For further information go to the Pertronix Electronic Ignition page
         
Aston Service Dorset : Pertronix Flame Thrower Black   50305PB   DB2 and DB2/4 Pertronix Flamethrower Ignition Coil in Black

For further information go to the Pertronix Electronic Ignition page
         
Aston Service Dorset : Dynamo   52028

52027
  Dynamo - Lucas (C45 PVS/5)

Pulley

Dynamo is re-conditioned and for sale on exchange only

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Aston Service Dorset: Manifolds Plate G

Aston Service Dorset : Stainless Steel Exhaust Manifolds   72246


72247
  Stainless Steel Exhaust Manifold Front

Stainless Steel Exhaust Manifold Rear
         
Aston Service Dorset : Cast Iron Flange Fitting Exhaust Manifolds   53998


53999
  Cast Iron Flanged Exhaust Manifold Front

Cast Iron Flanged Exhaust Manifold Rear

Ceramic coating available on request
         
Aston Service Dorset : Air Filter   51985   K&N Air Filter High Flow (re-usable)
         
Aston Service Dorset : Air Filter   51985   DB2 Vantage and DB2/4 Air Filters.

These are newly manufactured Air Filters, made from spun steel with an increased air flow mesh, 52%, up from the original 30%. They come complete as seen with K&N filter and replica badge.
         
Aston Service Dorset : Carburettor Spares Kit   90467   Jets

All Needle Types

Floats

Gasket and Seals Pack
         
Aston Service Dorset : Insulating Block   76961   Insulating Block, Carburettor to Manifold
         
Aston Service Dorset : Exhaust Manifold Studs   122202

122079
  Stud, Exhaust Manifold

Brass Nut, 5/16" BSF
 
           
© 2009 Aston Service Dorset   Back to top