![]() ![]() Now bring the RPM up either using the throttle or the idle screws. Turn the advance knob to 28 and point it at the crank pulley. Now add the 20 degrees to the idle timing you observed (say you measured 8 BTDC at idle and you add 20 to that for a total of 28 degrees). Start the engine and read where the idle advance is using the light as set above. Let's say you have a spec that says your distributor should be giving you an increase of 20 degrees of timing at 3000 RPM. Now let's move on to using the advance knob. Stop when the marks are where you want them then tighten the distributor clamp again. While still firing the timing light, use your other hand to gently twist the dizzy and you'll observe the timing mark on the pulley moves relative to the pointer. Determine if you need to advance or retard the timing. ![]() Point the timing light at the pulley and read the relationship of the pointer and the mark on the pulley. Restart the engine and set the idle speed where your specs say it should be (disconnect and plug the vacuum advance line also). JUST BARELY LOOSEN, you don't want the distributor to move at this point. ![]() If it's necessary (or you want) to adjust/change your ignition timing, stop the engine and loosen the bolt(s) securing your distributor to the block. Read what's going on with the timing marks. This will appear to freeze the relationship of the pulley to the pointer. The strobe should fire each time #1 spark plug fires. Start the car's engine, point the gun at the timing marks (presumably on the front of your engine) and squeeze the gun's trigger. Turn the knob until the its pointer lines up with its zero mark (turn the advance function OFF). Start learning to use your gun WITHOUT the advance knob. The arrow should point towards the spark plug. The inductive clamp lead goes around the spark plug wire for cylinder #1. The second lead will be the black one and it goes to a good, bare earthing point, preferably on the block or head. Connect that to a source of +12V (perhaps the solenoid). I've been waiting for your post since you bought the gun. A link to the original thread can be found here This FAQ relates to any Mini with normal distributor ignition (excluding SPi's), but please note it does NOT contain any specific settings for the timing on any particular Mini. 0632683" is 1 degree around the circumference & use my calipers to mark it, ie 2&7/32" is 35 & 1/2 deg.This isn't written by me, its written by one of the forums technical experts - dklawson. I cut a strip of newspaper & use it as a ruler cuz it is flexible & easily goes around the dampener &. I prefer to find exact TDC with the 10 dollar tool in the plug hole then measure/mark (4) paint slits on the dampener: 10-15-20 and my total (35 or 38) assuming the OE TDC slit is accurate & if it ain't then I make a new long one for it all the way across for (5) total. As said they dont play well with MSD's & in my experience they can be off up to a degree & I ain't sure if that is because they operate on a specific time delay & I ain't sure what diameter of balancer they are calibrated for & if the different makes' of balancer diameters are enough larger or smaller in dia to skew it since the marks will go farther in the same length of time on a larger dia dampener or if there is another issue but 1 deg ain't terrible. You dont need the box or the instructions. Prior posts have explained how to use it. ![]() A working/functioning dialback for $15, man jump on that. ![]()
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