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Posts posted by Roadmaster71

  1. Has anyone heard about someone making their own inspection cover for the 1941 cars? I was also surprised when I went searching for it in my ‘41 Roadmaster and could not find it.   Very disappointed . I suspect they may have been thinking about retaining the integrity of the glued down sound deadening material.


  2. I have a 1941 with a different gauge (charge + on right, discharge - on left) but I believe the

    response of any gauge should be the same upon startup and shutoff.

    I have a short video that shows how I think it should work: 

    I also do not see a strong charge when revving the engine. I suspect that

    if the battery is already well charged revving should not show a charge surge

    because the voltage regulator prevents that. 


    Also I agree there should be no electrical draw with the engine off and the ignition

    switch in the off position. The spark test you did does point to a short somewhere

    even though you seem to have eliminated all systems. Did you disconnect the

    electric fuel pump wiring to see if that has a problem? Have you added any

    extra switches like a kill switch or fuel pump switch? Switches do go bad. I have

    had that happen. And as mentioned it may just be a bad meter.


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  3. I would be interested in finding a good source for black ribbed mat. I have a 1941 Roadmaster and my mat crumbled when I removed it to have new floorboards welded in. I understand there is a reproduction mat available fo my car but at $500 it’s just not worth it to me.

  4. The trimmer adjustment is from an access hole on the back of the radio. Try that first.

    As mentioned above your antenna should be fully extended. Be careful about the garage, though. Always put the antenna back down before entering the garage if you back in or when backing out if you usually drive in front first. (guess how I figured that one out!).

    Have all of the capacitors been replaced with modern ones? Have the values of the resistors been checked? Have all the tubes been removed and their pins cleaned (a little contact cleaner and several insert / remove / insert actions will help).

    Also, if you live in a rural area you should expect to receive fewer stations, especially during the day. In RI you should receive whatever is local (15 miles or less) and  high power stations like the news stations in NY, even during the day. At night you should receive dozens of stations from all over.

  5. I have the same problem if I leave the car sitting for over 7 days. My solution is to prime the carburetor.

    I remove the float sight screw from the side of the front carburetor and trickle in a few ounces of gasoline.

    I use a plastic soda straw (end cut on an angle) as a funnel. I also place a rag around the carburetor while

    pouring to catch the screw in case I drop it. I have not dropped it yet. The car starts easily.

    This is much safer than pouring fuel down the throat of the carburetor.

    Also to help starting I installed new 00 thickness positive and negative battery cables.

    One other trick is to add a separate cable from the starter mounting bolt to the chassis. That 

    improves its ground connection. I have not done that yet.


    Ken Carr

    Fuel Supply apparatus.JPG

  6. My experience is with the 1941 only:

    With the ignition switch off push the pedal to the floor once or twice.


    For cold engine turn on ignition and depress accelerator half way. Engine starts.

    For warm engine: turn on ignition and depress pedal to floor and hold until it starts.


  7. I have seen the 1942 shop manual online for free download in a couple places. Unfortunately you must download one page at a time. If you are looking for information on only one system that is easy to do. Go to this link: http://buick.oldcarmanualproject.com/manuals/1942/Buick shop manual/index.html#google_vignette.  I attached a sample page to this posting.

    The Old Car Manual Project site that hosts the manual is, in my opinion, a legitimate site. They fully discuss contribution guidelines. I once tried to get copyright information from GM regarding some 1941 material I owned. Over a period of several months I made phone calls, was referred to the proper office, and submitted written inquiries. I was ignored ... only got as far as a secretary. Her boss was unresponsive and never answered phone messages either.


    Regarding a ‘42-‘47 manual, I have not seen that. I believe a new one was issued each year.



  8. I can tell you how I tested the vacuum starter switch on my 1941 Buick. I don’t know how similar they are.


    Mine is attached to the front carburetor. The throttle rod that chokes the carb when you press on the accelerator pedal passes all the way through the carb and terminates inside the vacuum switch. The rod has an eccentric on it. When the pedal is pushed to the half way point the eccentric releases a ball within the switch and that makes the contact between the two wires going to the vacuum switch. As soon as the engine starts the newly created engine vacuum sucks away the ball and the starter circuit is broken.


    To test the switch before wiring it to the starting circuit do this:


    With the engine off use a multimeter to test for continuity between the two terminals on the switch. There should be none (infinite resistance). Now depress the accelerator. At about the half way point the meter should beep and indicate 0 ohms. Next start the engine the way you usually do (starter button?). Again test for continuity between the two terminals but this time with the engine running. There should be no continuity.


    If you got these results without connecting the switch to the starter circuit it is very likely it will work when you connect it.

  9. That looks good to me. Nice work. Is that twine that you used or maybe the reed used to cane chairs?
    My wheel is unfortunately too far gone for this. I am considering body filler and spray paint. Otherwise it’s a whole new wheel at over $1,000.

  10. I had the same situation with my two-tone ‘41 Buick.

    I gave the paint shop guy the original paint chips, original codes,
    and some updated code cross references I found on the

    internet.He could not use any of it. All outdated.

    lt took 3 visits to the store with him coming outside to

    match modern color chips with my car. Then I gave him

    an engine bay panel that had a good preserved sample

    of paint. After 2 weeks of intermittent tries he finally

    got it right.

    Note: some shops have an electronic device that ‘reads’

    the color and attempts a match. He did not have that.

    He did have experience and patience. 

  11. If you are running just the GPS you should get a full day (say 6 hours) out of it.

    If you run the CB alone and leave it in receive only you should also be good for

    most of the day. If you do any transmitting you will likely run the battery down

    in an hour or so. Running both at the same time is not likely to last long. Give it

    a test and see what you get.


    The suggestions for computing your amp hour use are good. I really like the step up transformer

    suggestion, especially if you intend to use the radio and GPS often.


    I bring one of those 12 volt jumper batteries along just to run my cell phone or

    a GPS on some occasions. I only plug in as needed.

  12. Interesting discussion. Whoever worked on my car before I owned it disconnected the vacuum switch. They installed a starting push button and a disconnect switch which I always had to turn on before starting. 

    There is supposed to be a redundant system that prevents the car from cranking after it starts even if the vacuum switch hangs up. I don’t recall the details but I suspect it as Ben described.


    I have a new carb installed with a functioning vacuum switch so I want to try out the original system. A couple of my friends who have the same system run a starting button to the vacuum switch just in case it gets stuck open. I may do that also.


    Thanks for the comments.

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