Jim's spindles were delivered an hour ago.
No import tax to pay either so that was good.
Many thanks Jim.
Glad you got them and that their was no duty.
The delivery woke me. All this lack of sleep and I finally slept so soundly that I wasn't all that happy being woken but it was worth it. Unfortunately all that sleep came after my alarm clock went off and only got me through to lunch time. I should have been working hanging a door for a neighbour so I have sent my appologies and I will do it later rather then work on the tractor.
With all of the hoopala around a visit of royality, along with what appeares to be a very busy schedule. (you hide it well but it peeks through). I can guess you could be a bit on the frazzled side and need a bit of extra sleep.
I also got my delivery of drive chain, chain couplers and bearings. The bearing were one short as the package split open in the post but I have emailed the seller about it so hopefully I will get a replacement.
I also had a 'Doh!' moment. Jim's spindles, and he did tell me, are 3/4". I machined my drive components to take 20mm bearings and ordered a bag of 10 as they were cheap at £7.36 for 10. Doh!
I should have machined to 3/4" and just got one set of bearings to fit everything. I have asked the bearing seller to price me a set of 3/4" bearings along with the missing 20mm.
A couple of points on the spindles. Do you understand the terms TOOT, KPI, SAI, Camber, Caster, Toe, Trail, Wheel offset and Contact patch. All the correct angles are built into that set of spindles I sent. That is, WHEN you use the right angle and sizes on the the pieces you construct. Since you will be using the TT as a general yard and neigherbourhood vehicle we want to get it right so you arn't fighting the steering all of the time.
First thing, since you are ordering bearings, the King pin posts need to run in bushings not ball bearings. You could use taper bearings but that will just overcomplicate things.
For the King pin tubes you need to figure how to fit your components into the overall length allowed. This is the dimension from the support flange to the retaining washer and bolt. both tubes need to be the same length.
I use a piece of 1.5 inch OD X 1 inch ID steel tube. I get two 1 inch OD x 3/4 inch ID with a 1.5 inch flange hardware store bushings per side. You cut the tube to the proper length, then press the bushings into the tube, ream and polish the inside of the bushings until a proper fit is made.
A hint, the weight of the front end is going to rest on that little flange where the steering arms attach. It works but there is a lot of friction there. I always put a radial bearing with two thrust washers here. When I'm done I make up a little skirt seal to keep trash out of the radial bearing and allow grease to flow out.
All of the above should equal the dimension between the flange and the retaining bolt and washer.
For other bearings, If you plan on an articulated front axle (I would) you will need at least a 1 inch solid crosspin and bushings. Bigger is better here.
Since I don't have a Cad program (couldn't use it if I did) and what I do (did) use for dimensioned drawing went away when my system crashed. Then I bought a new machine with Windows 7 which won't load the old software. Now I've been sick and my hand shakes so much I can't freehand it.
What that was all leading up to . . . is we can't do any more to the front end until the rear end is finished and firmly locked down. Your steering box location is finalized. Length, wheel base, axle drop and front track is established.
What we want is the contact patch established in the linier center of the tire with a 1/2 inch or so of trail behind the verticle centerline. In order for the Toe Out On Turns (TOOT) to be correct the front track is going to have to be about the same width as the original tractor (we can fudge that a bit though)
Sorry to be so verbose Woody, I've been stuck in this house for over a week with this latest episode of the whats going around. I'm about ready to explode, in fact if I could stop wheezing and hacking long enough I think I would explode.