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Pontiac of the Month

J J Web's 1967 Lemans

2024 May
of the Month

360Rocket

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Posts posted by 360Rocket

  1. The tachs are far from perfectly sealed up so the heat buildup in the tach evaporates the moisture in the case and the positive pressure moves it out of the "leaky" case. The front glass has no sealer around it and is where most of the moisture comes into the case. Mine usually only fogs after washing the car and then driving the car. It dries out fairly quickly.

    • Like 1
  2. Spent the Saturday morning helping a friend I haven't seen in quite some time restoring a 1970 Lemans into a beautiful 1970 GTO Judge. 455 with FiTech and a  4 speed auto. It was relaxing to work on someones else's project instead of my own frustrating turd. We did however use my car as a reference to label his engine wiring.

    genes%20gto%201_zpsxjg22wzv.jpeg

     

    genes%20gto%202_zpsgo6lmks3.jpeg

    • Like 1
  3. Still working out tuning issues on my Goat. Replaced a bad PCV valve the hard way. couldn't get the damn PCV to fit in the grommet and thru excessive force, pushed the grommet and the PCV valve into the valley pan. Took awhile using a magnet to get out the PCV valve then some lotto type luck to hook the grommet with a coat hager but both are out of the engine. So after that fix still running like crap and getting worse. Gonna have to probably rebuild this damn carb as something is not right with the idle circuit. Ive never tried an Edelbrock carb in my life but these Holleys are getting on my last nerve. Had a friend that I helped today hand me a 600 cfm Edelbrock and I'm gonna do some homework to see if its enough carb to work on my 455.

  4. 3 hours ago, Last Indian said:

    360, you are right, light is a light, but the timing tab that the harmonic moves past can get knocked out of position. The only way to verify it’s accuracy is to do the indicator check for TDC.

    Isn't the timing tab on a Pontiac block cast into the block? I just wanna make sure i'm not screwing up the terminology. I can see the balancer separating and I'm gonna mark both sides and check it periodically.

  5. So maybe another tuning lesson learned? I'll ask you guys opinion first. So I've fought and I've fought, and I've fought with the carb/timing issue for far too long and I figure I'm fixated on one thing while the issue is quite something else so I decide to wave the white flag and get a fresh set of eyes on this tuning issue and I take the GTO to my local speed shop to have a pro give it a once over. So he pulls out a modern fancy star trek looking timing gun with LED readouts and dials and whistles on it and proceeds to show me that what I thought was 14 degrees of timing was actually set at 21 degrees of initial timing and 41 degrees of total timing. wow so in your opinion are my eyes that bad? or could there be a 6 degree difference between 2 different timing lights? The ride on the way home says thru the butt dyno that I picked up 50 HP with zero pinging and a much less strenuous sound coming from the starter on hot restarts. I still have some idle and off idle carb issues but that might have lead to a suspect PCV valve that I plan on replacing when I get back to work on Monday. Do I reserve trust in my trusty timing light? Or is a new set of contacts in order? 14 degrees is only 2 degrees off my timing tab so I don't think I could have been that far off, whats your thoughts?

  6. So I went to replace the plugs on my 1970 Pontiac GTO that has a supposed 73 455 motor between the frame rails. Problem is, the plugs would not fit. I pulled Autolite  #26 plugs out of the holes and attempted to replace them with Champion #58 pugs that are the same diameter and thread as the autolites but the base above the threads on the champions did not fit the tapered holes like the Autolites.

    I would like to know the heads that I have on this motor but whomever rebuilt and ported the heads ground off the numbers on the center exhaust ports. Gee thanks.

    I'm hoping to post  up some numbers remaining on the heads and hopefully a resident Pontiac guru can help me ID the heads for my personal knowledge and an opportunity to get the right plugs.  Thanks,

    drivers side middle ports

    drivers%20head%20middle_zpsd8ovmblm.jpeg

    drivers side

    drivers%20head%20rear%202_zpszmxgoejv.jp

    drivers side

    drivers%20head%20rear_zpscbnq4gqq.jpeg

    passenger side

    pass%20head%20middle_zpsmvmzrcuc.jpeg
    pass%20head%20front_zpss1rz4am2.jpeg
    pass%20head%20front%202_zpsaryqoyii.jpeg

  7. On 1/14/2018 at 8:48 PM, 360Rocket said:

     Did not meet reserve. Was estimated to sell between $150K - $175K  Jim Wangers Edition 69 LEGoat!.

    Jim%20Wangers_zpsetlwyclk.jpeg

     

    HEY!! Lemme point out something......look down by my feet, this room was filled with trails of trans fluid, oil, and radiator juice from million dollar cars.....all cars leak! ha ha

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