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Projects Mild custom '51 Pontiac Chieftain

Discussion in 'Traditional Customs' started by PhilA, Nov 4, 2019.

  1. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    No problem. Glad we can be here as a surrogate to "talk" with. Best wishes for a speedy recovery, also.

    Most of what I'm doing is borne from having to learn myself because I can't afford to have anybody else do the work for me. Necessity is the mother of invention, as is oft quoted.

    Phil
     
  2. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    I know what you mean. I horse traded my carpenter skills for auto work in the past but all the "traders" are now either too old or gone. I have some "friends" that would gladly work on my stuff but they want cash and I don't have that much free money to let go of right now.
    Thanks for letting me vent a little.
     
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  3. Pontmerc
    Joined: Jul 13, 2013
    Posts: 152

    Pontmerc
    Member
    from Finland

    Next time you open the transmission, put one magnet inside pan to collect fine metal out.
    Newer, like th700 had those allready by factory.
    Fine metal likes to sticking valves.
     
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  4. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    I have a strong neodymium magnet stuck to the bottom of the oil pan for that purpose.

    Phil
     
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  5. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member



    Made a short video on how to disassemble, inspect and reassemble the vacuum windshield washer pump.

    Phil
     
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  6. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Summertime is here again.
    20210724_090032.jpg
    9am and it's 89°, gotta love it.

    20210724_091021.jpg
    Cleaned the oil out of the drain pan from the last go around. Not exactly clean.

    20210724_101242.jpg
    Dropped the valve block off again and took it apart to clean and make sure everything moved freely.

    Fixed the issue where it would engage the parking pawl when selecting reverse with the engine running.
    It no longer drops to 1 from 3 when decelerating to make a turn, then accelerating gently.
    1st does stick occasionally, when the gearbox is hot though now it appears tapping the throttle will make it change up.

    Verdict: imperfect but improved

    Phil
     
  7. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    20210724_160241.jpg
    I tell you this, it really doesn't like this temperature.

    20210724_155130.jpg
    Went test drive again and got an old fashioned cherry coke (with chunks of cherries in!). Ice cold drink on a day like today is appreciated...

    Phil
     
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  8. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,586

    bchctybob
    ALLIANCE MEMBER

    Walking such a fine line between working good and minor irritations, I can't help but wonder if a different transmission fluid might make the difference. You know, the way different engine oils have small but discernable effects on engines? For instance, my long time transmission guy suggested using Ford fluid in my Hydro years ago to make the shifts slightly more snappy. He said that the Ford fluid was "grainier" for lack of a better term. I'm guessing that it had a lesser lubricity than the GM fluid. It seemed to work with no ill effects. There are many brands to experiment with from Walmart brand to the high end performance brands from the racing transmission suppliers. Maybe @bluesforU has some suggestions.
     
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  9. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Agreed- it's definitely a heat vs. oil issue- the main line pressure remains a stable 60psi in forward gears even when it's misbehaving. I have actually been trying different oils, currently have a higher weight "high mileage" right now which is a little better.
    However, it still does it from cold occasionally.
    Pushing my foot down on the gas briefly while in 4th (to the 4-3 stop but not forcing the shift) before coming to a halt seems to make it cycle correctly down through the gears and not get hung up. After that, it'll change up sequentially (rather than the 1-3-4 jump it likes to do).

    I think that the valve block doesn't bleed enough fluid to keep it cool, and the soaked heat just adds up, coupled with the fact the valve block is (let's face it) very worn.

    Admittedly, in 35 degree weather it behaved very well, compared to today's 100 degree, but overall today it's improved and I've solved 2 of the 3 issues it had, and improved on one.

    Phil
     
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  10. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    It's getting better as it's driven.

    20210806_200314.jpg
    Went get donuts. Overdue oil change now. Needs a wash, it's filthy!

    Jobs done: Drive about.

    Phil
     
    Last edited: Aug 6, 2021
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  11. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    I was Jonesing, needing a post from you to get me through the week. Then, when I look at the picture I see the steering wheel on the wrong side of the car! I'm going to hit the medicine cabinet and see what's in there because there is nothing in the fridge to help!:D
     
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  12. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Just noticed that! My phone puts the pictures backwards from the front camera. Fixed that now!

    Haven't really had a whole lot to post. Been putting water in the radiator, oil in the engine and gas in the tank.

    It's been turning all that into a lot of heat, some noise and a modest amount of motion...


    Phil
     
    Last edited: Aug 6, 2021
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  13. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    OK. the meds worked! Your steering wheel is on the correct side now.:confused:
     
  14. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Not a great deal to report.
    20210815_162754.jpg
    Put in a little wrench time today; routine maintenance.
    20210815_162924.jpg
    Dropped the oil. It's less dirty than it was on the last change, but has lost a lot of viscosity.
    20210815_170322.jpg
    Filled up with fresh, greased the suspension, oiled the linkages, set the points, lubricated the needles and set the idle mixture.

    It's definitely a car that doing a tune-up on makes a noticable difference to how it drives.

    Phil
     
  15. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    What do you mean by "lubricated the needles"?
     
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  16. Pontmerc
    Joined: Jul 13, 2013
    Posts: 152

    Pontmerc
    Member
    from Finland

    IMG-20210816-WA0006.jpg keep driving.just got my self a new project.
     
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  17. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    The Carter WCD has a spring-loaded, vacuum operated plunger which draws the jet needles up and down.
    This mechanism requires periodic lubrication with engine oil. I do it every 500 miles or so, it stops the mixture from going cranky and generally helps cruise running and economy.

    Phil
     
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  18. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    Thanks, I know what you are talking about now, top front on the carb.
     
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  19. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Yessir, two screws, remove the lid, oil everywhere.

    Phil
     
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  20. carbking
    Joined: Dec 20, 2008
    Posts: 3,292

    carbking
    Member

    Not necessary to remove the lid!

    Remove the two screws, and drop a few drops of light machine oil down each screw hole; then replace the screws.

    The screw holes line up with the bearing surface where the intermediate shaft is inserted through the holes in the casting support.

    This is the only area which should be lubricated. The metering rods and vacuum piston should definitely NOT be lubricated.

    Jon
     
  21. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Hm. The shaft always gets oil through the screw holes, but after having given the carb a thorough clean in the ultrasonic bath, the metering needles and plunger always began to get sticky after a few hundred miles. I oiled them when I did the pump shaft; that eliminated any issues with the mixture being all out of whack, so I made it part of the routine.

    Phil
     
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  22. carbking
    Joined: Dec 20, 2008
    Posts: 3,292

    carbking
    Member

    Phil - the use of the ultrasonic cleaner requires TWO baths. The first in the cleaner, the second in water to remove the residue from the cleaner.

    The piston clearance to casting is such that, unless the piston is totally worn out and should be replaced, oiling would cause the piston to stick.

    Jon.
     
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  23. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Jon,

    This is the much better of the two carbs I have. You would probably cry if you saw the tolerances.

    Phil
     
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  24. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Well, wish us luck.
    Chieftain is staying parked up at the house, we're evacuating away from Hurricane Ida, up to Texarkana.

    Phil
     
  25. spudshaft
    Joined: Feb 28, 2003
    Posts: 532

    spudshaft
    Member

    Phil, is your house fairly “high?” Ida looks like it will be a monster.

    Crazy this one is pretty much on the anniversary of Katrina. I hope you come out okay.
     
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  26. PhilA
    Joined: Sep 6, 2018
    Posts: 1,408

    PhilA
    Member

    Moderately. We're also inside a levee which helps immensely.
    The wind, however, I'm not so confident about.

    Phil
     
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  27. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 412

    fyrffytr1
    Member

    Prayers sent for you, your family and your car's safety.
     
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  28. pivir123
    Joined: Feb 15, 2015
    Posts: 32

    pivir123
    Member

    Thinking of you and your family. Be safe.
     
  29. 51pontiac
    Joined: Jun 12, 2009
    Posts: 274

    51pontiac
    Member
    from Alberta

    Stay safe Phil!
     
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  30. loudbang
    Joined: Jul 23, 2013
    Posts: 40,111

    loudbang
    Member

    Keep your powder dry.
     
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