Jump to content

MCHinson

Members
 View Profile  See their activity

  • Posts

    9,409

  • Joined

  • Last visited

  • Days Won

    22

 Content Type 

Posts posted by MCHinson

    A Big Thanks! To All At Kalamazoo!!

    in General Discussion

    Posted

    I am tired from the long drive but our family had a great time at the Grand National as well. The Gilmore Museum was a great location and the show went really well. My 9 year old daughter now has a new friend that we intend to see at future shows as well. Sort of happy to have our First Grand National Award too.....

    Grand National

    in General Discussion

    Posted

    OK, what sort of photos do you want.....

    I have a few photos of the Futureliner and of some of the Show Cars. I also have a few photos of some of the Gilmore Museum cars and displays, and I have a couple of photos from the Awards Banquet that I am sort of proud of. What are you looking for?

    Grand National

    in General Discussion

    Posted

    Well I am trying to figure out how early I have to leave on the morning of the 5th. Mapquest tells me it it going to be a 15 hour drive from Wilmington NC. So, I guess I will be sort of tired when I pull in there late in the evening on the 5th. Any chance the trailer parking crew might be around later than the 7:00 pm time listed in the brochure? I really want to let the 4th of July bar crowd all get off of the road before I pull out and 4:00 am sounds sort of early to drag the family out of the house.

    Gear Ratios

    in Model A

    Posted

    I did not think that sounded right, but it was the only reference to the subject at all in the Service Bulletins.

    I have been searching ever since posting that and finally found something similar to what I have read before. While it is not Model A Specific, I think it might work:

    http://www.btc-bci.com/~billben/reargear.htm

    "Anyone know how to tell what ratio rearend one might have without tearing it apart?,

    Thanks Al

    JimC: 5/31/2000 - 8:16:04 AM

    RE: ratio

    Jacking one wheel up and turning the engine over by hand will let you determine the ratio. Make a chalk mark on the bottom of the tire and crank the engine over exactly 2 revolutions. Also, make sure all the slack is out of the system when turning the engine over. Then measure the rotation on the tire. It will be plus or minus one turn, but accuracy with these measurements is critical. Take this tire rotation value, divide it into 1 (in other words, find its reciprocal), then multiply it by 4. This will give you a pretty good ball park of the ratio, which can be compared with known ratios (4.11, 3.78, 3.54) to see which one comes closest. For example, I recently went through this with my car and found the tire rotated slightly less than one turn for 2 engine turns, so I used a tire rotation value of 0.95. Dividing this value into 1.0 gives you 1.05, and multiplying 1.05 by 4 gives you 4.20. So I figured the rear end ratio was 4.11. I then used this method on a friend's car before he pulled the rear end out. I got about 1.05 tire rotations for 2 engine rotations, which figures out to a rear end ratio of 3.8. When the gears came out, sure enough, they were 3.78.

    1) Jack up one rear wheel and chalk-mark the 12 o'clock position on the tire. (Make sure the slack is out of the drive train)

    2) Hand crank engine 2 complete turns.

    3) See where chalk mark on tire ends up.

    A) Between 11 and 12 o'clock, ratio is 4.11

    B) Between 12 and 1 o'clock, ratio is 3.78

    C) Between 1 and 2 o'clock, ratio is 4.54"

    Gear Ratios

    in Model A

    Posted

    I know that i have read something about how to compute the ratio based on a formula to compute based on distance traveled per revolution, but I can't find it right now. I don't know if this will help but, While searching for that, I found the following in The Model A Service Bulletins on Page 276:

    "7.25 to 1 ratio truck axles have the letter A stamped on the left axle housing next to the rivets on the bell. 5.17 to 1 ratio axles are stamped with the letter B at the same point."

    another wire wheel ID job for 'ya

    in What is it?

    Posted

    I figured it out....

    To add a photo, don't use the "quick reply".

    Instead, click on the "reply" button.

    Then you will have a "File Manager" icon on the bottom of the reply box. Click on "File Manager" and it will then let you browse for a photo that you have on your computer or any other media to attach.

    Model A transmission

    in Model A

    Posted

    As best as I can make out from the Model A Ford Service Bulletins, there are a few very minor changes but nothing that would make one transmission not work in another year Model A. I have a spare that I plan to eventually install to solve a second gear growl in mine, but I am waiting until I have finished the show circuit (planning on Kalamazoo for Grand National in a few weeks). From all of my reading, it appears to me that the transmission may be about the least changed thing on the Model A over the years.

×
×
  • Create New...