4 weeks ago
12
Removal
With the moving established, it?s clip to region the delco. First happening to bash is to bring the motor to TDC utilizing marks connected the crank pulley, enactment the presumption of the delco rotor (by popping the headdress off) and past determination connected to really removing it.
The Delco is clamped onto the motor artifact with a 10mm seed and bolt operation astatine the precise bottom. You volition simply request 2 10mm spanners oregon ratchets to interruption it escaped and instrumentality them off
Before really removing it, unplug each the 4 plug wires and the main ligament going into it from the ignition coil. Also unplug the achromatic ligament attached to it connected the broadside which goes from the points mechanics to the -ve of the coil. It?s held by an 8mm nut
That?s it. Pull the delco retired now.
With it connected the bench, instrumentality the headdress disconnected and enactment connected removing the points mechanism. The points mechanics includes a capacitor, a interaction breaker and a outpouring mechanism. The link points and capacitor are held successful spot by 2 flathead screws. The outpouring mechanics pivots connected a pin which is attached to the delco apical plate.
Once the points and condenser are out, you tin really enactment connected removing the apical plate. Again, lone 2 screws clasp it but they are flathead screws and precise casual to strip. Someone had already had a spell astatine removing them earlier and stripped them partly.
After removing the flathead screws, the apical sheet comes off, revealing the beforehand mechanism. There is simply a acceptable of 2 weights and springs here. If you bash privation to dismantle the delco further, it is to beryllium kept successful caput that each of the weights and springs are different. The 23D4 advances the timing astatine 2 chiseled points successful the revv range, hence the 2 antithetic spring-weight combinations. It goes without saying that they volition request to spell backmost successful precisely arsenic they came retired other the advancing mechanics won?t enactment arsenic intended.
Also, determination is tonnes of grease successful present arsenic is visible. This is simply the incorrect mode of doing things. Apart from gunking up the insides, the grease adds to the effectual wide of the centrifugal weights and doesn?t let them to alert isolated astatine higher RPMs and change timing. The astir lubrication this mechanics should spot is immoderate sewing instrumentality lipid connected the delco basal and weights oregon immoderate motor oil.
I simply cleaned each of this without dismantling it utilizing petrol and a rag. It took maine astir 40-45 minutes and 3-4 rounds of cleaning to get it backmost to acceptable shape. There isn?t truly immoderate method to cleanable it, conscionable bully aged elbow grease and ensuring that you don?t accidentally popular disconnected the beforehand springs.
Another precise important constituent to enactment is that the delco assemblage has 2 drain holes astatine the precise bottom. Any lubricant poured (sewing instrumentality lipid oregon motor oil) should beryllium capable to exit the assemblage via these holes. If not, it mightiness yet marque its mode up onto the interaction breaker (in the lawsuit of a point-condenser system) and origin misfiring.
After unplugging the holes from grease utilizing a heavy needle, I proceeded to precise lightly lube the weights and basal with motor oil. The excess magnitude simply escaped done the drain holes arsenic intended.
The apical sheet past went backmost on. Post this, the physics ignition module was fixed. The module uses lone the pivot pin and 1 flathead screw arsenic opposed to the constituent condenser mechanics which needed 2 screws & the pivot pin.
The sensing ringing past pops onto the rotor shaft (it?s a elemental friction fit) and past connected apical goes the rotor arm. Check and change the presumption of the ignition module specified that the region betwixt the sensing ringing and module is astir 1mm and the spread is adjacent astatine each points. A somewhat wider spread is not an issue, but the 2 shouldn?t touch
Wiring
There is simply a flimsy alteration successful wiring too. As opposed to the points mechanics which lone had 1 ligament going to the coil negative, the physics ignition has two. There is an further affirmative to really powerfulness the module. The astir important happening to support successful caput is to ONLY powerfulness the module via a ballast resistor and not straight via the coil. Attempting to straight powerfulness it from the coil affirmative volition fry it wrong a fewer minutes.
Install
Reinstall is easy. Position the rotor limb precisely wherever it was erstwhile you removed the delco, guarantee the motor is astatine TDC and insert the delco. Complete the wiring arsenic indicated above. Don?t tighten the delco wholly successful place. Put the headdress backmost connected and plug wires successful the close bid (1-3-4-2) clockwise.
Fire the motor up. The car should atleast start. If it doesn?t somewhat beforehand and past try. Get a timing weapon and clip the motor to beryllium astir 5-10BTDC. If you don?t person one, beforehand the timing till the motor starts to ping precise slightly, past retard it conscionable a spot truthful that the pinging stops.
Conclusion
This beauteous overmuch sums up my shenanigans with the ignition system. The physics ignition kit should theoretically execute amended (stronger spark), beryllium zero attraction (no request to set constituent spread oregon regenerate the points) and person amended reliability (points tin misbehave successful moisture laden conditions). However, I ne'er instrumentality things astatine look value. I program to support the banal points and condenser with maine successful lawsuit the worst happens.
A pic of the stamping connected the delco for reference. The 23D4 is utilized connected galore MGs and Minis from the 70s and 80s. Unfortunately, it doesn't person vaccum beforehand which offers load based timing beforehand arsenic opposed to lone RPM based advance. I won't beryllium capable to instal 1 either since my existent carburettor doesn't person a vaccum larboard needed for the job.
