Articles from halifaxhops

  1. 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...
  2. 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...
  3. 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.
  4. How to Identify the difference between distributor caps

    I get asked all the time how come my distributor cap will not fit. There are two types one for the common aluminum case distributor that fit both point and electronic units then there is the dualpoint cap that fits only the cast iron distributor housings. The aluminum has a internal slot that the tab on the vacuum advance fits into and the dual point (prestolight) distributor has a tab on the cap that fits into a slot on the hold down clip. Here are some pictures of the difference....
  5. How To Check a Condenser on a Points Ignition

    I get asked this all the time. I have a condenser tester but I do it daily. This will work for you. This is for an analog meter but a digital works--you will see the voltage spike.

    Hope this helps

    1.) Remove the condenser from the engine (or at least disconnect the lead wire). Note the small metal connector located on the end of the condenser. This connector is the "hot" or power connection. The metal case of the condenser is the grounding point. Discharge the condenser by shorting the...
  6. Distributor starting point for a curve

    Great distributor mechanical curve sheet. All makes
  7. 1964 - 1974 Factory Engine Paint Chart

    1964 - 1974 Factory Engine Paint Chart
  8. How to Properly Oil Advance Cam in a Distributor

    As a lot of you know I have been rebuilding a lot of distributors lately and by far the largest issue with them is this.

    to prevent this is really simple most of us old guys know about this, once a year just put a few drops of light oil, or engine oil on the felt pad under the rotor, it lubricates the advance cam and also drives the old oil/dirt slowly out. If it is the first time just lift the pad and see if it is all rusted up, if so unfortunately you have to take it apart and clean it....
  9. Another blower motor mod for BB.

    I found a smaller motor that is a bolt in replacement for the stock motor. AH451 New Universal Products 12V
    Easy one to do the pics explain it all.
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