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Re: I Found the Magic Button!
Did you mean "Castor" is as positive as it can be?
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Re: I Found the Magic Button!
Alrighty I’m going to see what I can do Tuesday.
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Re: I Found the Magic Button!
Yeah. Caster needs to be as positive as possible.
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Re: I Found the Magic Button!
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I just completed a steering rebuild (rag joint, pitman, idler, ball joints, tie rods, upper and lower control arms, Red Head quick ratio box, pump, wheel bearings and tires) and had the truck aligned. i now have a lazy return to center and while driving straight it seems kind of twitchy. I have a lot of caster so i dont understand the lazy return to center. Is the toe supposed to be toe in or out?
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Re: I Found the Magic Button!
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Re: I Found the Magic Button!
Going down the sheet in order, I would like to see a bit more camber. -.25° would make me happier but if you can't get there you can't get there. I question the frame angle. If its really 2° thats fine but if its closer to 0 (mine was 0) then your caster angle numbers are going to be off by the sum off the difference. Since its front steer it needs toe out. I would rather see 1/8" total (1/16 per side).
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Re: I Found the Magic Button!
I think I need to expand on that a bit more. Your toe and camber angles are a bit on the neutral side which would cause those angles to flip back and forth between positve and negative. You've gotta push them a tick more to make them stay in the range they need to be in. Confirm that frame angle was actually measured and not guessed at to confirm caster.
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As for the lazy return, how is steering force when you turn the wheel away from center? Could just be the box sector lash adjustment is too tight. |
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Just so i understand, if the caster is 5.9 and the frame angle is 2 then my actual caster us 3.9? I need .5 more camber (top of tire in / \) and 1/32 more toe on each side (front of tire out \ /) and as much caster as possible? |
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Re: I Found the Magic Button!
I would verify frame angle or at least ask the guy that aligned it. Your math is correct...sorta. If your frame angle is 0 and they plugged in 2* the printout would say 5.9* when its actually 3.9*.
-.5 camber is good (tops of the ties pointing in). 1/16 toe per side (1/8" total) for toe. |
Re: I Found the Magic Button!
funny I had my tires mounted and balanced yesterday at the shop i will have do my alignment at some point I discussed doing the alignment one of the mechanics there is ready to retire he and I went to the same school he is old school but is up to date with the newer technology this is going to be very helpful for me thanks so much for the info i gotta try to get it all together before he heads south
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The first shop wouldn't/didn't give me numbers. The only thing I see is 1 1/8" shim on the pass side and a 1/16" shim on the driver side. |
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Re: I Found the Magic Button!
it ,kills me when someone comes in and hands me a sheet for the factory specs on an old ride. biasply then and radial now. 3 degrees positve was alot with biasply, these trucks with radials want at least 4 to 4.5 pos. setting camber and caster is no big time deal. all aligners the last 10 years use live caster readings and can compensate for elevated readings. i always rerun caster swing after adjusting, just a double check. rear shims effect caster more, front shims effect camber more, keeping less than a 1 degree split, more caster on right.any change in ride hieght changes all. there are so many measurements that effect how it drives, SAI, setback, thrustangle, along with camber, caster and toe.even a 20 thousand dollar Hunter aligner ends with a wrench and a brain. sorry for the rant, but after 30 years of frontend work i hear to many techs say set the toe and let it go. they should be sweeping floors.
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Re: I Found the Magic Button!
The only shims are in the front.....none in the rear at all. I have an appt on Wednesday and we shall see. The good thing is the guy said it may take him a couple hours to get it done. I like the fact he's willing to take the time to do it right and give me the dang print out!
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Re: I Found the Magic Button!
subd
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Any update MySons
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Re: I Found the Magic Button!
The new alignment didn't change anything.....it still won't return and the alignment shop tech said its in the box. I need to pull the pitman arm and see if there is a bind in the ball joints or?
Sorry for the late reply and Happy New Year! |
Re: I Found the Magic Button!
If it were mine I would bust the outer tierod off the spindles and feel the ball joints for any stiffness or catches, kinda like checking u joints. Not saying anyone messed up but a ball joint can be ruined while pressing it in, especially the lower. Happy new year
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