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Don St Peter

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About Don St Peter

  • Rank
    Senior Member, have way too much spare time on my hands
  • Birthday 04/05/1938

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  • Biography
    Drive a 40 Ply P-9 restored to original
  • Occupation
    Retired Engineer


  • Location
    The villages, fl
  • Interests
    restoring Antique cars

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  1. Guess I sent something unfinished! I'll try again Thanks for reply. My P-9 is positive gnd. I've attached a pic of the meter I was using and it shot craps. Now I'm in market for new reasonably priced meter that will work for me. As I can only find a 12 V out there, I would probably go with a two lead tune-up analyzer that would read out volts, PT resistance, dwell and tach like the one I have unless you have a better thought.
  2. I cannot find a 6 V Tach/Dwell/Volt analyzer, sooooo Based upon the discussion above regarding use of a 12 V timing light on 6 volt system; I assume I could use a 12 V Tach Dwell Volt analyzer on my 6 Volt system using a similar lash up using a 12 volt battery. Question is what would the hookup look like. I can't figure it out. Thanks in advance for help Don
  3. Sorry I got it wrong Todd. I follow both yours and Tim Adam's post regularily as I have found both great sources of info! Don
  4. Thanks Tim. Just realized I have the " Plymouth Shop Manual" for 40 series and not " Service Manual" which I shall order. So, is it a dumb question to assume that at idle my RPM's should be indicating 1/2 of 350 or about 175? Don
  5. Thanks for hook up clarification. As you can tell I'm a novice at this, but will eventually learn. So could I purchase a battery powered timing light and use it? Also, I can't seem to find the recommended idle RPM's on my 40 Ply P-9 in the service manual. Can anyone tell me what idle RPM should be so timing will be right when correct procedure is done? Also, I want to determine dwell angle with my RPM, Dwell, Voltmeter but can't find what dwell should be with points set properly ( which is .020 for my 40). Thanks all Don
  6. So Don; you are saying just buy a 12 V timing light and hook it up across my 6 v car battery and clamp the sensor to # 1 plug wire and proceed? Tx Don
  7. Does anyone know where I can get one? I know Advance Autos sources does not make one Tx Don
  8. Merle Thanks for the translation on the picture. I guess I am just confused when I see the black lead of tester hooked to + connection of the coil. Tx again Don
  9. Thanks Rich and Merle. Got that part, but I still seem to have a mental block translating what you say to the ignition system voltage drop test as shown on the schematic I attached. For example, if I hook the red lead of tester to the pos. post of batt (gnd.)., then do I hook the blk lead of tester to the coil neg. and jumper the pos. of coil to ground or do I hook the blk. lead of tester to coil pos. and jumper the Neg. of coil to ground? Sorry for adding to confusion. Don
  10. I have attached a file ( hopefully) showing tester hookup for checking ignition system for neg ground system. Can someone take a look at it and tell me how to hookup a pos ground system like my 40 Ply. Thanks In AdvanceScan0001.pdf
  11. I noticed the below post by Merle in 2012 when I was trouble shooting my fuel pump problem yesterday."There seems to be a trend in the modern "new" pumps that they don't secure the pin properly. I've heard many horror stories, and I have even had one work out. When the pin walks out the linkage falls apart and it stops pumping. The rebuild kits from Antique Auto Parts Cellar use a pin with retaining clips. Easy to rebuild and no problems since. Otherwise I'd suggest staking the pin good on any "new" pump, no matter where you purchase it." This pin "walking out and the linkage falls apart" is exactly what I found upon pump removal on my some 500 mi pump. Can you suggest a good pump source that has solved this problem. Thanks in Advance Don Merle
  12. Checked and cleaned all attach points on horns and relay. They seem to work ok now.... but problem was intermittent to start with, so we will see Thanks for all good input Don
  13. Does the fact that I hear the relay clicking confirm the circuit is working but relay is bad and/or intermittent? I will check as advised tomorrow when it is light.
  14. Silly question.... the single wire from horn button is ground wire I think so you are saying insure good attachment at that point.
  15. My duel horns work now and then. When not working I can depress horn button and all I hear is relay clicking. Is my relay bad or is there something else I should look at? Any thoughts would be appreciated. Tx
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