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king pin inclination #232946
02/02/12 12:38 PM
02/02/12 12:38 PM
Joined: Feb 2012
Posts: 2
NSW, Australia
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classicmamma Offline OP
Grease Monkey
classicmamma  Offline OP
Grease Monkey
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Joined: Feb 2012
Posts: 2
NSW, Australia
hello, hoping someone can help me find the correct king pin inclination for my 1927 chevy. Can't see it in any of the manuals we have. Thanks

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Re: king pin inclination [Re: classicmamma] #233091
02/03/12 09:30 AM
02/03/12 09:30 AM
Joined: May 2002
Posts: 4,218
Goulburn Australia
tonyw Offline

ChatMaster - 4,000
tonyw  Offline

ChatMaster - 4,000
Joined: May 2002
Posts: 4,218
Goulburn Australia
Welcome to Chatter.

King Pin Inclination is the angle the king pin leans in towards car centreline at the top. It keeps the steering axis close to the centreline of the tyre for easier turns.
It is set at the factory when the end of the axle is drilled and the only time it changes is when the axle is bent therefore is rarely adjusted and requires specialist equipement to do so.

Tony


1938 1/2 ton Hope to drive it before I retire
Re: king pin inclination [Re: tonyw] #233188
02/04/12 03:41 AM
02/04/12 03:41 AM
Joined: Feb 2012
Posts: 2
NSW, Australia
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classicmamma Offline OP
Grease Monkey
classicmamma  Offline OP
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Joined: Feb 2012
Posts: 2
NSW, Australia
hello Tony,
thanks for the reply. We have a major wheel wobble problem and have tried everything else we can think of, and have been looking for something that will give the actual degree of inclination so we can check it, but no luck anywhere.
Kerrie

Re: king pin inclination [Re: classicmamma] #233197
02/04/12 04:40 AM
02/04/12 04:40 AM
Joined: Oct 2011
Posts: 59
Perth Western Australia
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Steelin_Time Offline
Shade Tree Mechanic
Steelin_Time  Offline
Shade Tree Mechanic
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Joined: Oct 2011
Posts: 59
Perth Western Australia
All wheel aligning machines give King Pin Inclination. I Have never had a problem with any of the Chev 4's I have owned or worked on over the years. You could try putting a wedge in the front axle where it bolts to the springs. This will increase the camber. Would be worth a try but will make the steering heavier.

Re: king pin inclination [Re: classicmamma] #233204
02/04/12 05:29 AM
02/04/12 05:29 AM
Joined: Dec 2001
Posts: 11,162
Central Texas
MrMack Offline
ChatMaster - 10,000
MrMack  Offline
ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162
Central Texas
Unless your car has been in an accident and has a bent axle the only adjustment that can be made besides making sure the front wheel bearings are set right is the toe-in. My 28 had a wheel wobble problem when it would hit a rough spot, and the front tires were wearing where they appeared to be scuffing. I checked the wheel bearings then the toe-in and it had toe-out of 1/4" I adjusted the tierod between the left and right wheels to 1/8" toe in and it now steers and rides great. Some where in the old threads on this site,is a detailed home shop way to check and adjust toe-in.

I think that in the 27-28 repair manual there are specs for the alignment of the front axle.


Life's a long winding trail, love Jesus and ride a good horse!
Re: king pin inclination [Re: Steelin_Time] #233338
02/05/12 01:03 PM
02/05/12 01:03 PM
Joined: May 2002
Posts: 4,218
Goulburn Australia
tonyw Offline

ChatMaster - 4,000
tonyw  Offline

ChatMaster - 4,000
Joined: May 2002
Posts: 4,218
Goulburn Australia
Steelin Time is correct, most alignment equipement will measure "king pin inclination" but may be called "steering axis inclination" but the only people I know of that can adjust itare heavy truck alignment garages as it requires bending the beam axle.
Tony


1938 1/2 ton Hope to drive it before I retire

Moderated by  Bill Barker, brewster, tonyw 

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