Triumph Herald 1200 25D Ultimate Stealth Electronic Ignition Performance Pack

  
Spark T Electronic Distributors 12 Volt Negative earth only Suitable Triumph Herald 1200 1961 -1970. 1 Brand new Lucas 25D4 type electronic Distributor with screw in cap Fitted with Stealth electronic ignition module. Accu SparkT electronic ignition module. Is a quality item that we have fitted in our own workshops. These give excellent all round performance with notable gains The Hall effect trigger and module give. Based on original Lucas Design. Recently manufactured rotor arms have been failing due to poor design and cheap materials. Notably, the rivet which holds the brass inlay into the moulding has proved to be an unreliable method of construction.

The high tension current, averaging 30,000 volts, is always looking for the easiest route to earth and shorts down through the rivet. Based on the original, more reliable 1960's design, but made from modern engineering grade polypropylene with the latest manufacturing techniques to high tolerances. These LUCAS STYLE RED ROTOR ARMS will not let you down. The brass contact is inlaid to dispense with the troublesome rivet used on most versions, this rivet can run very close to the centre cam and is known to cause failure by short-circuiting.

The superior insulation of the body makes them suitable for use with Electronic ignitions and high output coils. The new spring steel clip, in conjunction with a revised high manufacture tolerance, assures a really good fit. Recently manufactured rotor arms have been failing because the typical "mix" used in the injection moulding nowadays contains more carbon blacking and is, therefore, more conductive.

Still more importantly, the rivet which holds the brass inlay into the moulding is slightly longer than the original, bringing it too close to the spring clip on the underside. The high tension current, averaging 30,000 volts, is always looking for the easiest route to earth and shorts out from the tip of the overlength rivet, through the reduced thickness of more conductive plastic and the spring clip on the underside of the rotor arm, to earth out down the distributor shaft. Result - no sparks at the plugs. The situation sometimes rectifies itself on cooling, but then reoccurs with increasing frequency until the rotor permanently short circuits. Modelled on the original, dependable 1960's design, but made from modern materials on the latest machinery to very close tolerances.

The integrally moulded brass inlay dispenses with the troublesome rivet used on most versions which is known to short circuit. The increased insulation properties of the body make them suitable for use with high voltage coils & electronic ignition kits. The spring steel clip on the underside, in conjunction with a revised internal tolerance, assures a really snug fit, even on old & slightly reduced diameter mountings.

Accu Spark RED High Power 3 ohm Sports COIL Suitable replacement for all Standard Non ballast coils. Ideal for use with points or our electronic ignition kits.

Red 8mm Silicone ignition wires 5 A set of. AV86C triple ground spark plugs.