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Mark Maras

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Everything posted by Mark Maras

  1. Mark Maras
    The only way an engine will rev is more air. I agree with the air leak theory. The backfiring out of the carbs confirms a lean mix but I'm going to play Cap'n O here. Have you installed both throttle return springs? They hook onto the heat shield below the carbs. I forgot them one time. Your description jogged my memory.
  2. Mark Maras
    I'm sure I speak for the whole group when I say, We'd like to see each layer as you peel it away. There's something compelling about it. Kinda like peeling a sunburn or clearcoat.
  3. Mark Maras
    Adjusting the valves may help those readings. 165 and above on all cylinders would be good.
  4. Mark Maras
    No decision is a good decision. Let the Z decide what it needs.
  5. Mark Maras
    Cutting the A-pillars vs replacing everything that's rusted on this one, Hmm. That A-pillar doesn't look as daunting as the rust option. You would want to weld all the internal joints and work your way out on both sides. It would require cutting a piece from the outside layers above and below the joint to provide access to the inside sheet metal, then inserting a patch on the outside layers that would bridge the joints.
  6. Mark Maras
    Think it's overpriced now? Throw a tarp over it and wait for another five years. It and or its parts will double or triple in price. Looks like a 401Z plan to me.
  7. Mark Maras
    I don't believe that half shafts spin fast enough to have a vibration problem and I've seen steeper prop shaft angles (which spin 3 1/2 - 4 times faster than the half shafts) on V-8, 4 wheel drive pick-ups. What was the official reason for the squaring up the angle? I can't bring myself to believe it was u-joints or vibration.
  8. Mark Maras
    Any theories? The little I know about u-joints, axles, and prop shafts is the installed angle at the u-joints should be the same on both ends.
  9. Mark Maras
    It would be a good idea to pull the domes and pistons. Clean them with lacquer thinner and a clean rag. DON'T swap parts from one carb to the other and DON'T bend the needles. Let us know what they look like inside. Pics are better.
  10. Mark Maras
    Any idea where the oil is going? Is there any oil on the outside or inside of the suction chamber, the piston or the venturi?
  11. Mark Maras
    The oil level mark is on the black stem between the cap and the brass "jiggly bit" on the other end. Where does the oil level end up filling them using your method?
  12. Mark Maras
    After you've filled the carbs with oil, how much resistance do you feel when you put the caps back on. On mine, I had to push them down with my thumb before the threads would engage. There was quite a bit of resistance. It took a couple of seconds to push each one down. Doesn't seem like much time but it's a short distance.
  13. Mark Maras
    My 4 screws always stayed at the mark on the stem. Interesting, I'm going to do a little research.
  14. Mark Maras
    Curtis Salgado is still alive and well in Portland. One of my favorites to listen to live. He filled the void left when Paul Delay's passed on.
  15. Mark Maras
    That one is a good candidate for shark's mouths on the front corners. Ala, the Flying Tigers P40's in WWII.
  16. Mark Maras
    I hope it's not too late to go back and get a few of those unicorn items before the synchronicity fades away. Trim, clips, screws, bolts, and fasteners of all types (Series one, hatch vent clips for example) are worth very little to a wrecking yard, but to anyone restoring a Z, they're priceless.
  17. Mark Maras
    I should have added that I've never seen or heard of one.
  18. Mark Maras
    I don't ever remember seeing one of those back in the seventies.
  19. Mark Maras
    Jung called that kind of timing Synchronicity. You did stop on the way home and buy some lottery tickets, right?
  20. Mark Maras
    And cut a sunroof hole in the top so your knuckles don't scrape the headliner.
  21. Mark Maras
    The wipers were barely adequate when they came from the factory, and they get worse at speed. 80 mph and above they start to lift.
  22. Mark Maras
    I'm curious the weight of oil everyone is using that is experiencing a lean condition at WOT. Heavier weight oil is supposed to richen the mixture at WOT.
  23. Mark Maras
    The cereal box cardboard doesn't break down in oil. I've never had one fail and I've made quite a few gaskets over the years.
  24. Mark Maras

    Cody's Goon

    Mark Maras replied to Patcon's topic in 510

    Sounds like the problem is in the hydraulics and or adjustments. The question that remains is where did the fluid go? Have you pulled the rubber cups from the ends of the cylinders to see if either is wet inside?
  25. Mark Maras

    Cody's Goon

    Mark Maras replied to Patcon's topic in 510

    Were any of the brass synchro ring teeth from one gear (2nd) worn more than another?
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