I'm working on the top for my 1911 and fitting the bows into the sockets and getting close, but I think I still have some more whittling to do.
I have a couple of references with dimensions, but wanted to run the measurements by you guys first...
#1 bow (front angled) as measured from the outside to the center of the pivot is 37-1/2"
#2 (front vertical) as measured from the top to the center of the pivot is 31-1/2".
#3 (back vertical) as measured from the top to the center of the top prop nut is 33".
#4 (back angled) as measured from the top to the upper pivot is 35-1/2"
If anyone has any advice, measurements on file, or have a car to do some quick measurements, I'd appreciate it!
: ^ )
I topped a '14 touring three months ago so I guess I will jump in this. It could be somewhat different than the '11. However, I have attached the diagram I picked up on the forum that is for a '15. Helped me a bunch. Also, there are some good threads on tops so look a few up on the search feature. I have written below on some of the things I discovered as I went along. I think the most important single thing to do is set the profile of the top.
TOPDIMENSIONS.pdf (125.8 k)
None of the dimensions from a 1914 are applicable to Keith's 1912. Nothing is the same.
Keith I will measure this evening when I get home from work. The rear bow needs to be set so that a plumb line measures about 1/2" - 1" from the rear of the seat.
Never said the '15 was the same but I'm sorry if my post misled everyone.
If you have the '13/'14 or '11/'12 dimensions, please post them. If you have the iron dimensions, please post them too. Could not find those either. It would help novices like myself a great deal.
You have a '15 touring that I saw on tour in Sept. Did you top that one? Also, do the dimensions on that diagram come anywhere close to your '15 car?
Are the '13/'14 tops the same dimension wise? Likewise, '11/'12? I looked on the forum for any measurements on the '13/'14 and couldn't find a thing. I still don't know if my irons are the correct dimension.
Thank you for your help,
Ken in Texas
You posted I have a couple of references with dimensions and probably have this one, was posted earlier, and is the ref dimensions given by JV Group for top install on early T.
Thanks for all the input so far.
The measurement from the bow to the windshield is about 2-1/2". Should it be closer?
I like your use of the straps to hold the bows in position. I have a roll of poly webbing about 2 inches wide that I used so I could clamp the bows from below and lay the main deck on. That way you can check the overhang all the way around.
Do you have your top ?
Ken in Texas
Anybody have detailed pics like these for a '26 roadster, or lead me in the right direction as I am about to do the bows and top on mine. Thanks, Steve
I do not have a top yet. I was going to be Vince... :^(
I know what the correct design is supposed to be, but have not determined if any of the "preferred suppliers" make them correctly. I have all my fasteners and hardware, even the hard to find Anzo Fasteners for snapping the side curtains between the flaps built into the edges of the top for the side curtains.
Does anybody know if Elizabeth makes them accurately for the '11/'12?
OK Keith - finally measured mine. I believe the bows and their wood are original. When I installed the new JV Group top in 2008 there was evidence of at least two prior tops. I plugged all the old holes with tooth picks glued in place then cut flush and sanded smooth after the glue had set.
#1 bow (front angled) as measured from the outside to the center of the pivot is 36
#2 (front vertical) as measured from the top to the center of the pivot is 29-1/2".
#3 (back vertical) as measured from the top to the center of the top prop nut is 31".
#4 (back angled) as measured from the top to the upper pivot is 36"
Front overhang is about 1 1/2"
I should add the front overhang would look better if it were about 2" - 2 1/2". But it is the way it was when I got the car, and there is no evidence it was ever any other way. Your bows sound very tall for some reason. How did you arrive at those dimensions?
One thing to add - the rear overhang is about the same as yours, perhaps 2" from plump line to the back of the body at center.
Can you give us socket measurements of your '11? The distance from the end of the sockets to the pivot points would be helpful.
My sockets measure from the open end to the center of the pivot:
Elizabeth owns Classtique. Her number is 763-786-9048. I suggest you give her a call. She made a kit for another T I have last year. Nice.
She can also guide you on bow heights. Too high and the top doesn't come down far enough and too low and it starts looking flat.
You have to add an inch to Vince's #2 and #3 bow to get the height. He measured under the bows in the drawing and they are an inch thick.
Call me if you would like, 832-622-6527, Classtique was good to work with.
Ken in Texas
Keith and Randy,
Compared with the '14 irons I have. they are as follows for the open ends to the pivots:
Wood bows 54" wide. ('11/'12s are 56" wide).
The slant of the windshield on the '13/'14 pulls the top back so the #1 bow is shorter than the '12.
Ken in Texas