Original dynamo removed from engine

Because the above dynamo, mounted to my engine, was originally from a XK120 I needed to look for the correct one.

This dynamo has a brass identification plate with the following information:
Lucas 22452B, GC51, C45PVS/5, 12V, 53

The dynamo I needed should have the following numbers:
Lucas ,22462B, GC51, C45PVS/5, 12V, 56

An other XK140 restorer in my neighborhood offered me a deal I couldn’t refused.
Exchange mine xk120 dynamo for a correct, fully restored, xk140 dynamo and give him a small reimbursement for the parts he used for the restoration.

All parts needed for rebuilding the dynamo

All separate parts are again sandblasted and pained black so they all look again as new.
To prevent rust, and make it easier to remove them in the future, the bolts are also painted black and mounted with a little bit tectyle.

Dynamo and engine brackets mounted on the engine

The water pump, in this photo located between fan and front part of the engine, will be restored completely. The cooling capacity of these cars is not very over engineered so to keep the engine cool the water pomp need to be in top condition.

My first idea was to reuse the impeller, originally they have 4 blades, but removing them is a difficult job. Because the impeller is made of cast-iron and pressed unto the bearing axle it is almost impossible to remove them with breaking. Secondly I could not find the correct water sealing ring.

So I decided to buy a water pomp repair kit (SBS7272) with:

• 6 blade impeller (they have a smaller inside diameter)
• Bearing (one side has a smaller axle to receive the impeller)
• Water sealing ring
• Gasket
  

  Parts needed to rebuild the water pump

After the impeller and carrier for the pulley are pressed onto the bearing axle the water pump can be mounted onto the front side of the engine.

Rebuild water pomp mounted to the front side of the engine

All parts are cleaned and oil rings, locking plates and gaskets replaced.
The oil pump clearance is still within specification (inside 8/100, outside 8/100) and can be reused.

All parts need to rebuild the oil pump

Below the oil pump before and after the restoration process.

Before assembly of the engine could start all bearings are measured:

• Mains bearings (6/100, still within specification)
  To prevent honing the crankshaft(I can only be done twice, and it will get less riged) I accept the play as it is.
• Thrust washers (with one STD and one oversize 11/100)
• Big-end bearings (4/100, still within specification)
• Small-end bearing (No notable play)

Original uncleaned bottom view of the crankshaft

All separate parts are thoroughly cleaned and the following parts are bought new:

• New main bearings (STD)
• New big-end bearings (STD)
• New thrust washers (STD + oversize)
• New piston set (complete with 4 rings, gudgeon pin and circlips)

All cleaned and new parts needed to mount the crank shaft and pistons

Remarks:

• Don’t forget the oil sealing ring at the rear block before the crankshaft is mounted.
• Mount the bearing so the indicators will match (they are all numbered and the engine block also has these numbers stamped into the casting) Numbers should be kept at the inlet side.
• The pistons are number from 1 until 6 starting from the backside of the block
• The piston numbers are stamped into the connection rod and the big-end bearing cap
• The piston numbers should be readable from the exhaust side
• The compression piston rings should be mounted in opposite direction 0 and 180 degrees. I also mounted the oil scrapper rings at 90 and 270 degrees.
• When piston 1 and 6 are in the TDC position the distributor shaft should be positioned at 5 to 5. The distributor shaft will make a half rotation when the crankshaft has made one.
• When the timing chain is connected to camshaft make sure the distributor shaft is positioned as shown on the picture.
  (Remark the notch is positioned left from the middle at 5 to 5)

Because I found some pictures, original made in jaguar factory with painted text, I painted the “Jaguar” logo and the text “3 1/2 litre” in white.
Bellow the engine block with the pistons and crankshaft completely mounted.

Engine with the crankshaft and pistons installed

Crankshaft, bearing caps and connecting rods installed