Issue With Front Suspension - Team Camaro Tech
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post #1 of 25 (permalink) Old Oct 20th, 19, 05:18 AM Thread Starter
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Issue With Front Suspension

I have almost everything worked out. 12 Bolt with 3.73's, New TK0600 and new Serpentine system with new power steering pump and alternator. The brakes finally feel like brakes and the power steering pump works great.

But when I drive it, the front end doesn't feel right. I did just see a post about a guy that had suspension issues. Mine aren't exactly like his, but close.

With the weight of the car on the ground, I push down on the front fenders and I have absolutely zero travel of the front springs. It's like the shocks are stuck.

My setup is thus;

Front tires: P235/60R15
Tubular Control arms
QA1 Coil-overs with 600# springs
Height from floor to lip of fender: L/F: 22-3/8" R/F: 23-1/4" (Will verify equal adjustment)
Front end is a little too low-tires rub while turning.
I DO NOT have 2" drop spindles.
Rear: I have Hotchkis 1-1/2" drop multi-leaf springs with 255/60R15's
Height from floor to lip of rear fender: L/F: 26" R/F: 26-1/8"
Height of car in rear is just right.

I feel like I need to replace the coil-overs. Heidts has a P/N CB-130 HERE, but it doesn't show what spring they come with. Guess I need to call them.
A really don't have a problem replacing the control arms and going back to the originals, but if I can get the front end to come up a little with these tubular control arms I would prefer that direction.
There are also these HERE . These are Stance Air cups. Will fit on coil-overs so you can raise the height.

I had Ride-Tech on my Chevelle, but the coil-overs require their StrongArm Control arms and the kit is pretty pricey. I can't find a Ridetech assembly that contains only the parts required to get the coil-overs to go onto the front. You would think they would have a kit that included the coil-overs, upper and lower control arms and the spindles.

I guess at this point, I will pull the coil-overs and try to determine if they have been over-extended.






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Last edited by Brettallen59; Oct 20th, 19 at 05:22 AM. Reason: typo
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post #2 of 25 (permalink) Old Oct 20th, 19, 05:34 AM
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Re: Issue With Front Suspension

Maybe the shocks are bottomed out. Your adjusters are all the way to the bottom. Turn them up and raise the front of the car. Should be no reason to replace QA1 coilovers with Heidts. Do you have the coilover adjusting wrench?

If you jack up the front of the car do the wheels drop? If they do then the shocks are not fully extended.

Don

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post #3 of 25 (permalink) Old Oct 20th, 19, 05:52 AM Thread Starter
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Re: Issue With Front Suspension

Quote:
Originally Posted by dhutton View Post
Maybe the shocks are bottomed out. Your adjusters are all the way to the bottom. Turn them up and raise the front of the car. Should be no reason to replace QA1 coilovers with Heidts. Do you have the coilover adjusting wrench?

If you jack up the front of the car do the wheels drop? If they do then the shocks are not fully extended.

Don
Thanks Don. I am not certain if the wheels drop or if it is just the tires unloading when I jack the car up. I will go confirm that. I do have the wrench, and I swore I just saw it recently, but now comes the journey of trying to locate it. I can't believe that when you get older, it becomes harder and harder to find stuff. I put it somewhere where I will be able to find it when I need it, then when I go looking for it, it disappears!
I did also install the torrington bearings and I do have anti-seize on the threads. It could also be why one side is at a different height. This time I will try to get them both up to 23" or taller.

Thanks,

Brett.......

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Last edited by Brettallen59; Oct 20th, 19 at 06:02 AM. Reason: typo
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post #4 of 25 (permalink) Old Oct 20th, 19, 06:00 AM
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Re: Issue With Front Suspension

I agree. Looks like shocks are bottomed out.

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post #5 of 25 (permalink) Old Oct 20th, 19, 06:03 AM Thread Starter
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Re: Issue With Front Suspension

I edited my response....

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post #6 of 25 (permalink) Old Oct 20th, 19, 06:08 AM
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Re: Issue With Front Suspension

Quote:
Originally Posted by Brettallen59 View Post
Thanks Don. I am not certain if the wheels drop or if it is just the tires unloading when I jack the car up. I will go confirm that. I do have the wrench, and I swore I just saw it recently, but now comes the journey of trying to locate it. I can't believe that when you get older, it becomes harder and harder to find stuff. I put it somewhere where I will be able to find it when I need it, then when I go looking for it, it disappears!
I did also install the torrington bearings and I do have anti-seize on the threads. It could also be why one side is at a different height. This time I will try to get them both up to 23" or taller.

Thanks,

Brett.......
If the shocks are bottomed out you need to come up well over an inch, likely two inches imho. Otherwise the ride quality is going to suck big time. The shock needs to be roughly centered in its travel for optimum ride quality.

Don

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post #7 of 25 (permalink) Old Oct 20th, 19, 06:17 AM
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Re: Issue With Front Suspension

Quote:
Originally Posted by dhutton View Post
If the shocks are bottomed out you need to come up well over an inch, likely two inches imho. Otherwise the ride quality is going to suck big time. The shock needs to be roughly centered in its travel for optimum ride quality.

Don
X2. Jack the car up before you adjust them. Even with the bearings installed the adjusting nuts can be hard to turn and near impossible with the weight of the car on them.

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post #8 of 25 (permalink) Old Oct 20th, 19, 06:26 AM Thread Starter
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Re: Issue With Front Suspension

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Originally Posted by Vega$69 View Post
X2. Jack the car up before you adjust them. Even with the bearings installed the adjusting nuts can be hard to turn and near impossible with the weight of the car on them.
Thanks John for that info, as I was wondering which way was going to be the best condition for turning the nut.
Brett....

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post #9 of 25 (permalink) Old Oct 20th, 19, 07:31 AM Thread Starter
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Re: Issue With Front Suspension

Crap, now I got confused. You guys are thinking the shocks might be "Bottomed Out" Does that mean that the shocks are fully compressed?
And The nut that is at the bottom of the spring needs to be rotated up, or more compressing the spring? Doesn't that mean that in order to compress the spring more it would be better to have the wheels on the ground, or with weight on them? That would seem to mean that compressing the spring would more compress the shock. You see how confused I am!

Brett....

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post #10 of 25 (permalink) Old Oct 20th, 19, 07:33 AM
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Re: Issue With Front Suspension

If the shocks are bottomed out, it would mean that they are fully compressed. You'll want to adjust your collar upwards to further compress the spring (and raise the ride height).

Steve -
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post #11 of 25 (permalink) Old Oct 20th, 19, 07:35 AM Thread Starter
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Re: Issue With Front Suspension

Ahhh! Compressing the spring means that the shock will not be compressed?
B...

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post #12 of 25 (permalink) Old Oct 20th, 19, 07:39 AM
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Re: Issue With Front Suspension

Correct... think of it this way.....

You want the shock piston to be relitively centered in the shock tube. If you had NO spring on the coil over, the car would sit very low and the piston of the shock would be all the way down in the bore (for coilovers).

By compressing the spring... you make the spring take the load..... raise the ride height, and allow the shock piston to come up in the bore.

Is the car sitting extremely low on the ground (on the bumpstops)?

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post #13 of 25 (permalink) Old Oct 20th, 19, 07:48 AM Thread Starter
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Re: Issue With Front Suspension

About an inch. The thing I do see is that the spring nut is at the bottom of it's travel. I have a Looong way that I can raise the spring. This should be all I have to do (I hope)! Thanks guys!

Brett......

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post #14 of 25 (permalink) Old Oct 20th, 19, 07:50 AM
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Re: Issue With Front Suspension

Good luck!

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post #15 of 25 (permalink) Old Oct 20th, 19, 08:45 AM
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Re: Issue With Front Suspension

Quote:
Originally Posted by Brettallen59 View Post
Ahhh! Compressing the spring means that the shock will not be compressed?
B...
If the adjustment nut is at the bottom of the shock body you are definitely bottomed out.

Turning the adjuster upward will compress the spring to the point the weight of the car is supported by the spring. As you continue to adjust up the spring will not compress further and the car will raise as you adjust.

My guess is you'll be going up with the nut 2"-3". QA1s have approx 4" of travel. Ideally you want to be close to the center of travel.

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