Front end problem

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Model T Ford Forum: Forum 2016: Front end problem
Top of pagePrevious messageNext messageBottom of page Link to this message  By Wilf Bradbury on Saturday, January 02, 2016 - 03:44 pm:

Just finished winterizing the 14 roadster, and after putting it up on stands for the winter, noticed loose play in the king pins. It appears the play is not wear between the pins and the bushings ,but the bushings have been turning in the axle and are loose in the axle. I guess the pins where too tight in the bushings.
Suggestions for a fix would be appreciated
Wilf


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Saturday, January 02, 2016 - 04:30 pm:

The proper fix would be to replace with new king pins, and new bushings. Have on the tools for install, face reamer for the bushing faces, and shaft reamer for the spindle body bushings.

When installing the spindle bushings, they should press in place firmly. If loose in the spindle body (may happen now that the old bushings have spun in the spindle body), then use Locktite bearing adhesive, cleaning all surfaces from any oil, when you press in the bushings. Be sure the bushing are fast in the spindle body.

If you want to patch, then try to use the old bushing with adhesive or maybe JB Weld, then press in and then after drying, ream the old bushings for the clearance needed to allow the kingpins to fit right.


Be sure to check over the axle yoke when at it to see threads at the bottom are good, and faces under the yokes are parallel.




Top of pagePrevious messageNext messageBottom of page Link to this message  By Jack Daron - Brownsburg IN on Saturday, January 02, 2016 - 04:33 pm:

Disassemblethe front spindles,and remove bushings. If king pins are good,order new bushings.Install new bushings and line ream. Reinstall spindles and king pins. If your spindles are wallowed a bit use locktite on new bushings.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wilf Bradbury on Saturday, January 02, 2016 - 04:43 pm:

OK thats a great help.
How tight should the nut on top of the spindle be torqued?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Saturday, January 02, 2016 - 06:16 pm:

Whoa! No torque.

The king pin is a fixed rod, that allows the spindle body to turn with its bushings.

You only thread in and snug the oiled king pin bolt enough so that the bushing faces will turn with a slight drag. If TOO tight, the spindle body will be caught in the yoke and squeezed by the king pin bolt, that will make turning difficult and lock up your steering too. If too loose your wheels will wander and steering will feel loose.

So just snug and test, move the spindle by hand. REF: Para.689 Ford Service.

When you are satisfied you made the correct tightness, then place the castle nut on the end of the king pin, snug it tight, and add the cotter pin.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Saturday, January 02, 2016 - 07:28 pm:

RE what Dan said..been there done that.
If you install just bushings check the side (top) where the bushing rides on the axle and clean as needed. Don't face the bushings till you have done a trial fit. While you may know these things others reading this may not.
Most sleeve retaining fluids requires/should have some pressure on the part till set, just use a long bolt to hold in place. A 3/8 or 7/16 should work.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wilf Bradbury on Sunday, January 03, 2016 - 08:07 am:

It turns out the holes in the axle are too large and the king pin is a loose fit in the axle holes.
The pins are loose in the axle holes. the pins and the brass bushings are a nice fit.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, January 03, 2016 - 10:39 am:

That is more a normal happening, the bore of the upper yoke getting worn by the hardened king pin shaft when allowed to get loose by not checking the lower nut over time. That will also allow those partial threads in the lower yoke to strip, and the king pin is now loose....along with your steering :-(

The fix is the Stevens set, a taper cup for the upper hole, and a threaded insert for the lower.

Works well..




Top of pagePrevious messageNext messageBottom of page Link to this message  By Wilf Bradbury on Sunday, January 03, 2016 - 11:13 am:

Thanks for this
A friend has one of these, so that is the route I'll take
Happy New Year
Wilf


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