Not hard to calculate it out, w/2" camber and 30" diameter wheel on a '26-'27. IIRC, the angle on '26-'27 is 2 degrees, earlier cars is 3 degrees. " I am looking at a drawing of the front axle and there is no tolerance called out for the angle of the king pin hole, so wouldnt expect one on the spindle either." Yet we know there had to be a tolerance, you can not practically make something without. It seems likely they will be close enough.īy Les Schubert on Tuesday, Novem11:30 am: My real question is how consistent will they be. My concern is that I may have to ream the bushings on a fixture to ensure consistent camber so the backing plates fit consistently.Īnyway it seems that 1 1/2 degrees seems to be the "factory spec" for the late spindle. There does not appear to be any caster in the spindle. I am dealing with the camber which appears to all be in the spindle. I am looking at a drawing of the front axle and there is no tolerance called out for the angle of the king pin hole, so wouldnt expect one on the spindle either.īy Les Schubert on Tuesday, Novem11:28 am: All bets are off once you press in bushings and ream them. I think you will find if you get the spindle drawing that the the hole in the spindle is down the center of the spindle. The 1926-27 left spindle body is part # 2695C and the factory drawing # 281B.īy Jeff Humble on Tuesday, Novem09:25 am: The 1926-27 right spindle body is part #2694C and the factory drawing # 280B. The 1911-25 left spindle body is part # 2695B and the factory drawing # 281AR. The 1911-25 right spindle body is part # 2694B and the factory drawing # 280AR. If you want to order a copy, contact the Benson Ford Archives. That is shown in the thread referenced above near the very end - figures 365 & 366.īut either way - there is a 99% chance you can order a copy of the original Ford drawings for the 1911-25 as well as the 1926-27 front spindle and it should give you the details of that part. A good axle has all the holes (kingpins and spring perches) parallel in vertically alignment. The castor is set by the forging of the spring perch (and of course putting them in the axle correctly with a proper wishbone etc.). The camber is set by the forging of the front spindle. My limited understanding is the kingpin is vertical without any impact on the castor or the camber. I'm still not sure if you are addressing the camber (which I see measurements in inches but not degrees) or castor. I would say if you can keep the angle within 1/2 degree (1.5-2.0 & 2.5-3.0) you'd be dang close to the tolerance.īy "Hap" (Harold) Tucker on Tuesday, Novem08:39 am: 3 degrees but I remember my measurements taken on samples were not even degrees. Well I will check some and see how close I find them. My concern is that I may have to build a fixture so that I can ream the king pin bushing to a closer angular tolerance than the average "as found" spindle so that the brake shoes will fit the drum close enough. I had looked at that but it really only mostly applies to the axle, where as I am looking for information pertaining to the spindle itself.
Sumter SC.īy Les Schubert on Monday, Novem11:41 pm: Hap Tucker l915 Model T Ford touring cut off and made into a pickup truck and l907 Model S Runabout. I hope some of that may be helpful to you.
A lot of that information is also posted at the thread: There is a lot of good information on paragraphs 146 to 154 of the "Model T Ford Service" book. That's what sets the front wheel camber and Ford knew it was not adjustable.īy "Hap" (Harold) Tucker on Monday, Novem11:24 pm: I've seen variation in the machining that would indicate particular care in defining the angle over centering the forging. The 1 1/2 degree seems reasonable for the 26-7 which is what I have been working on. Someone with a better memory will surely correct me though.īy Les Schubert on Monday, Novem11:06 pm: I think the pre-26 spindles were 2 1/2 degrees. I can't find my specs but 1 1/2 degrees on the improved spindle seems to come to mind. There's two different angles depending on pre-26 and the improved spindle (26-27). I am trying to get the backing plate as square as I can to the spindle and of course I am trying to support it off of the king pin as the McNerny brakes were. I wonder what tolerance Ford made them to. In measuring some it seems to be in the 1-2 degree range off of 90. I don't mean the inclination in the axle itself, just in the spindle. In working on my front brakes I am wondering what was Ford's spec for the king pin "tilt" to the spindle. Model T Ford Forum: Angle of the king pin to the spindle Angle of the king pin to the spindleīy Les Schubert on Monday, Novem10:15 pm:
0 kommentar(er)
