Banjo Bolts, Half Moon Seal, Tensioner Plug

Banjo Bolts

The engine oil banjo bolts are made from grade 303 Stainless steel. They are slightly longer than the original Jaguar bolts and designed specifically for our thicker copper washers. The washers supplied MUST be used with our bolts in order to ensure proper alignment of the oil hole between the bolt and the banjo fitting. Failure to do so could cause serious damage to your engine. The advantages over the original bolts is better sealing due to the thicker washers. You could use thicker washers on your original bolts but a couple of problems arise.
1. You cause misalignment of the oil line to banjo holes. 
2. The amount of thread engagement decreases by the difference between the original washers and the thicker washers. The original bolt thread engagement is already barely adequate and you risk stripping the threads in the aluminium tappet block. Definitely a bad thing. 
Both 3/8’’ and ½’’ banjo bolts are available. The 3/8’’ bolts are the ones which screw into the rear of the tappet block and the ½’’ bolts screw into the side of the engine block and/or the oil pressure sending unit housing.

The Radiator banjo is similar to the engine banjo except constructed from Brass. Be sure to change all three washers to ensure a leak-free connection. (There’s one under the spacer.)

The half-moon seals are constructed of Grade 6061 billet aluminium and clear anodized to prevent oxidation. Each is supplied with a length of Viton O-ring stock. These will fit the V-12 and the XJ 6 cylinder engines.

The advantage of using these is that they will not shrink and harden like the original rubber seal.

The tensioner plug is constructed of 6061 billet aluminium and clear anodized to prevent oxidation. It incorporates a Viton O-ring for exceptional sealing. For retaining, an ingenious design uses a cone-point setscrew, which, when tightened, pushes a stainless steel ball against the inside bore of the cover. The plug has been designed to allow insertion without removal of the water pump or idler assembly. Included is a centrally located ¼-20 threaded hole for use in removing the plug. Just screw in a long bolt and pull it out after loosening the cone point setscrew.
The advantage this seal has over the original Jaguar seal is that it won’t harden and shrink like the original rubber seal. No more unsightly leaks!

Fuel Rails

With the possibility of fire from a leaking fuel hose, it was time to eliminate the risk and change to fuel rails. Ed Ward in Melbourne has done a great job fabricating the fuel rails with all necessary fittings, saves a lot of work and machining.                           

You can use XJ40 injectors, or Falcon EL injectors (reasonably priced from wreckers)