Spring Seating - Chevy Impala SS Forum
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post #1 of 28 (permalink) Old 08-27-2004, 11:51 PM
enigma9c1
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How many front spring alignment prongs are there in the upper pocket?
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post #2 of 28 (permalink) Old 08-29-2004, 11:46 AM
enigma9c1
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Anybody done fronts themselves that can answer this? Thanks.
post #3 of 28 (permalink) Old 08-30-2004, 05:17 AM
Rick Mansen
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I think it's 4.
 
post #4 of 28 (permalink) Old 08-30-2004, 08:45 AM
threeimpalas
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Quite a few - more than just 4.
post #5 of 28 (permalink) Old 08-30-2004, 01:29 PM
enigma9c1
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Thanks for the responses. I'm trying to determine if the newly installed Hotchkis springs are seated up top properly. I didn't get the drop I expected. Both sides sit the same, ie the front isn't cockeyed. I've looked inside the pocket with a flashlight and can see some of the prongs. I just want to be able to completely rule out improper seating (top of spring caught up on one of the prongs) as the reason why it came down only ~1 1/8 - 1 1/4" on a 9C1.
post #6 of 28 (permalink) Old 08-30-2004, 06:59 PM
Rick Mansen
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Maybe it's 5 or 6, but when I put in my Hotchkis, it took a couple of tries to get the top seated right. I put them in without a compressor, and the way the spring has to bow as the control arm comes up, it's real easy for it to jump out of the seat. As I recall, the prongs will be a snug fit inside the isolator, but you should see them all the way around. I think my front dropped closer to 3" (9C1); definitely more than 1 1/4.
post #7 of 28 (permalink) Old 08-30-2004, 09:55 PM
enigma9c1
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Thanks, Numbskull and threeimpalas.

Numbskull- That's what I expected: 2 1/2 - 3".

threeimpalas and Numbskull- Once the top of the spring is in, how can I be sure it is sitting completely in the deepest part of the pocket and not hung up on one or more of the locator prongs? The mechanic has installed them twice already. He said that both times they were completely seated on top. I would like to think that after all the sh!t I gave him after the first time when I checked his work and informed him that they weren't indexed correctly on the bottom (the end of the coil was past both drain holes), he would have made certain that it was done right since I didn't pay him for doing the job twice. They are now seated on bottom correctly. I'm at a loss trying to figure this out.
post #8 of 28 (permalink) Old 08-30-2004, 10:48 PM
Terry McManmon
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If you don't get the drop you expect -- did the installer loosen the inner bushings on both upper and lower control arms, and then torque them with the weight of the car on the wheels?
Lots of folks miss that step, but a pro shouldn't. This is also why some people will tell you that the suspension needs to settle -- popy cock.

If that isn't done the bushings are tightened at the original ride height and depend on the flex of the rubber to meet the reduced height. They will eventually come around closer to the reduced height, but they will be in a strain when they do. Premature failure of the bushings is the long-term result.
Maybe there is something else going on, but it is one thing to ask about. Or if you are real handy, and have a way of accessing the underneath of the car with the weight on the wheels, do it yourself. I know that last one is a killer for most folks, but it is why alignment racks are designed the way they are.
post #9 of 28 (permalink) Old 08-30-2004, 11:46 PM
enigma9c1
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Terry- Thank you for your post. Between the two visits to the garage, I asked him that question four or five times. He claims that he did. It is not a dealership, but he worked at one in the past. He was GM trained he tells me. The second time I went back, before he pulled the springs again, I gave him the Haynes manual and wrote out for him something I believe Navy Lifer had said on this forum:

Loosen all suspension pivot point fasteners- upper and lower control arms, front and rear to let the car settle and allow all of the bushings relax to come to a new "normal" position in relation to the change in control arm angle created by the shorter springs. Then go back and re-tighten all of the fasteners with the full weight of the car on the suspension.

I can only assume (and hope) that a trained mechanic who has done spring jobs before understands the language. I know just a little bit about my car, but even for me it is crystal clear. It just reads like it would be common sense.
post #10 of 28 (permalink) Old 08-31-2004, 12:27 AM
Terry McManmon
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Yes, Bill has a far better way with words than I do. [img]graemlins/6.gif[/img] That is about as clear as one can make it. Unless you take it to someone else, or do it yourself, all you can do is wait.
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