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EFV-8 Club Forum / General Ford Discussion / front end alignment

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Discussion Topic: front end alignment -- page: 1 2

autoluke

09-27-2019 @ 8:46 AM

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Carefully examined all the components, AND measured the turning radius on both wheels..
Pitman marks align with shaft
Pitman and drag link aligned per specifications.
As mentioned earlier.. new king pins, bushings and connecting links.
Steering wheel turn-to-turn identical in both directions.
THE PROBLEM
Readings from the bearing mounted table under each wheel...
RIGHT TURN Right wheel : 30degrees/ Left Wheel 35 degrees
LEFT TURN Right Wheel 20 degrees/ Left wheel 30 degrees
Peerhaps a bent axle ??????

therunwaybehind

09-27-2019 @ 4:15 PM

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So now we are to the right hand steering arm having two tapered bores and the left one has only one. Is it possible to switch the positions of the cross over link end with the tie rod end on the right hand side? Before doing any changes you could measure the distance from the actual tie rod end on each end to the king pin axis. If it's the same as you have assembled everything after taking everything apart, --- I refer to right as the passenger side as if in the driver's seat and left as the driver's side. Apparantly, some suppliers view the car from the front,---but any way--the early Ford book as two drawings that show the tie rod as above the radius rod and there is test to note this confusion. With the suppliers it is the part numbers for the tie rod ends where the green book shows 21A and 8C prefixes of 3290 and 3289 and replaced by 3271 and 3270 where the lower numbered part is unique and there are two of the higher numbers and no number at all for the end that is with the pitman arm as the draglink includes it as 3306. I think that 3289 assy is the tie rod end that goes in the front hole of the passenger side steering arm and spindle. in that arm the 3290 goes in the rear hole and becomes part of the drag link that crosses over from the steering box and joins with 3306 near that location. Another 3290 goes at the other (driver's side) end of the tie rod. Checking for a bent radius rod 3405 might also be appropriate. Folks want to write mostly about bump steer now . Does one of the two in a pair of 3290/3289 have a left hand thread for the tie rod? An indexing cut for the tapered pin?

This message was edited by therunwaybehind on 9-28-19 @ 5:01 PM

autoluke

09-29-2019 @ 4:36 AM

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Switching the positions by reversing the attachments would not work.

The drag link which has been installed is the correct one.

therunwaybehind

09-29-2019 @ 8:23 AM

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We are back at your first post where attaching the drag link threw things off. That leads me to think you have the length of the tie rod wrong and that caused you to over adjust the drag link to compensate for what happened when you moved the wheels later. So I would offer the measurement of where the center of the tie rod is when both wheels are pointing most forward. You could set the toe in to zero at this point to simplify. Use the plumb bob at the center of the car method to find where the center of the tie rod should be. Then measured to each steering arm on each spindle. Is it the same? Next I would lift the car by the axle so the wheels could be turned by hand with the drag link unattached. I would now go through turning them equally left and then right and see if the angular measurements agree with the results with the drag link attached as you have reported. Hmmm-- The setup is rigid between the axle and king pins and the tie rod and it's ends. You can measure diagonals on it if you suspect any sides of this rectangle is bent. The rubber in the system is in one of the spring shackle ends on each end of the spring, the one in the spring. Then the other rubber is in the ball at the transmission end of the radius rod wishbone. The axle could be skewed by wear in these rubbers. This would not matter until you hooked up the drag link to a point rigidly attached to the frame. I now have the book Ford v-8 Service Bulletins 1938-40 which I purchased used from Amazon. I see that all depends on a KRW-525 wheel aligner and KRW 526 correction tools. The procedures described include any bent or distorted parts.

This message was edited by therunwaybehind on 10-6-19 @ 10:08 AM

autoluke

10-20-2019 @ 5:39 AM

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The calendar is full, so have decided to place the Ford in winter storage.
I'll attack the problem again in April, and want to thank everyone for their comments.

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