Articles from halifaxhops

  1. Installing a petronix unit

    Installing a petronix unit is simple this is a slant but the 8 is the same.
    Remove the points and condenser and primarly lead, can be done installed, I took the breaker plate out for better pictures.

    Clean area
    Install positioner plate for the pick up. Lock tight the screw is recomended.

    Slant does not need the adel (wire) clamp 8's do.

    Install pick up add rotor and trigger wheel and gap it (.032) with included plastic tool or brass feeler gauge.

    Install in car, connect the two wires to...
  2. How points ignition works.

    Found this on the web and it is a simpe explination on how a points ignition system works.

    The Primary Circuit
    With the contact breaker points closed, a 12v current flowing from the car's battery induces an electro-magnetic charge in the primary coil (1). At the same time, a small capacitor, or 'condenser', placed in parallel to the circuit is also charged for an auxiliary purpose.
    As the engine-driven distributor drive shaft rotates, a corner lobe of its cam pushes the contact breaker...
  3. Adjustable Vacuum Advance

    Hope this helps out explain the adjustable vac advance. It does not adjust the amount of advance it adjust the rate of advance.

    This should help you can see when the screw is all the way out CCW, it compresses the spring in the vac advance, usually takes over 20 INHG to move the diaphragm when it is out all the way CW they usually start moving at around 5 INHG, hope it helps explain it.
  4. Great How to Diagnose Basic Ignitions

    Forgot I had this older chart on ignitions. Basically walks you through any issues you will have. I have always thought this was very helpful when I was just starting to get into cars around sixteen years old. Hopefully this will help out members walk through ignition issues.
  5. How to Identify Dual Points SB and BB

    I get asked quite a lot if I have points. A lot of descriptions say just 340, 360, 400, 440 etc. and misleading for sure. Here is a picture so you know what to look for. E bay is notorious for it. Now you know the difference in a picture. Very easy to confuse since they are mirror image of each other.
  6. How to fix a Defroster hose

    Coors can works great also! 2.5 OD
  7. How to fix a cracked block, easy also

    Man I wish I knew about stitch weld before I threw a bunch of big $$$ motors out, easy also just takes a few hours.
  8. A Good Chart for Where to Adjust Valves

    I just happened to stumbbled across this thought I would share it. I have seen this asked for many times on here and also FBBO. I know many times I could have used it while adjusting valves.
  9. Easy Tool for Removing Roof Rail Mouldings

    Easy tool to make from a churchkey, heat shrink and a popsical stick. Bend the can opener and grind the tip off of the can side. Open the tab on the bottle side a bit. Then put a bit of heat shrink or tape over the tab. I use hot glue to put the section of the popsicle stick on. (you will break it at some point makes for easy replacement). Bend as needed and go for it!
  10. A great chart for radio id.

    Identifying Car Radios

    2580 766 MoPar 1968 Imperial Search tune AM PB radio
    2580 786 418 Mark 1 MoPar 1968 Imperial T&C AM PB radio
    2580 786 MoPar 1968 Imperial Search tune AM PB radio
    2649 963 CE59014 MoPar 1969 Plymouth Valiant AM PB radio
    2820 632 240 MoPar 1968 Plymouth AM PB radio
    2820 275 MoPar 1968 Chrysler Search tune AM-FM PB radio
    2820 635 376 MoPar 1968 Chrysler AM PB radio(?)
    2820 885 MoPar 1968 Chrysler AM-FM stereo PB radio
  11. How to hook up most test equipment

    Found this chart of how to hook up test meter. It seems most people are scared of them easy peasy hope it helps. Has most of the common hookups rpm, dwell, amps, volts and ohms. This is from Sun Corporation in the 70's. Great for use on points cars and electronic also. The tach hook up is also the same as dwell if it does not have a inductive pick up.
  12. Everything you wanted to know about ignition advance

    Great article. Not mine.
    The centrifugal advance system in a distributor advances spark timing purely as a function of engine rpm (irrespective of engine load or operating conditions), with the amount of advance and the rate at which it comes in determined by the weights and springs on top of the autocam mechanism. The amount of advance added by the distributor, combined with initial static timing, is "total timing" (i.e., the 34-36 degrees at high rpm that most SBC's like). Vacuum advance...
  13. Easy electronic distributor check.

    See that a lot of people are confused on electronic distributors, pretty easy check to see if the distributor is working properly. Pull the distributor out leave the pickup wires hooked up and spin the shaft, the coil should fire. Pretty easy check of the whole system. If not firing pull the two prong plug, take the cap off and put the distributor somewhere you can spin the shaft and have a multi meter hooked up to the pickup coil plug. Set the meter on the lowest AC scale and you should...
  14. Determining 12 Volt Wire Size

    Just saw this chart and figured it would be a great guide to share here. I have seen numerous posts about determining what wire size to use lately. You have to remember also to fuse the circuit according to the load.
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