sportlines and yellows install - Suspension and Brake Forum

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sportlines and yellows install
Monday, May 29, 2006 5:59 PM
Hello JBO. I am scheduled to recieve my yellows tommorrow. I already have the sportlines waiting. I believe I have all of the tools to install the drop. I plan on using as much of the stock components from the macpherson strut assembly as possible. I am concerned about what the modification of the stock strut towers for the yellows entails ( the modification they say should take about twenty minutes)?

I have searched and read the yellows install in the FACs section plus this as well: http://bradiscool.com/spring.html

I guess to be brief, is the only differences in installing the struts and springs over, say an oem replacement as described in the Chilton's:
1) the use of a drill press in making the holes for the struts larger
2) modification of the bumpstops
3) anything else???

If you have already done this install, your help would be much appreciated.

I am wondering because of what it said in the FACs section, would it be better to buy new upper strut mounts and have a machine shop use a drill press to enlarge the holes, or could I use the stock ones? My car has 104k miles.

As I said before, any of your help would be much appreciated. thank you.

Re: sportlines and yellows install
Monday, May 29, 2006 6:02 PM
oh yeah, I have a 98 2.2 rs coupe with upper strut bars f/r, and lower sway bars f/r + the lower front subframe brace if that makes any difference.
Re: sportlines and yellows install
Tuesday, May 30, 2006 7:58 AM
Re: sportlines and yellows install
Tuesday, May 30, 2006 1:24 PM
I already did read that, I was reffering to this:

"The stock struts have a shaft that is about 3/8 of an inch, the Koni shaft is really beefed up at 1/2 ''. It sounds easy, just drill it out to a half inch and presto you good to go. Well the bad part is that you have to drill about 1 1/2 inches of suspension class steel. the drill bit doesn't have anything to " bite " into, so with out a drill press this is a really difficult task."

and this

"Here's the easier and faster way to do the rear install. I swear I wished I had thought to do this the first time I disassembled the car. Get two mounts from the auto store, Autozone was the cheapest in this area buy almost $20 ! It does pay to shop around. I was lucky enough to have a friend (Frank) with a big drill press. Only took about 5 minutes to drill out both. Having them drilled and readily available for installation was a big time saver."

for the rear, it seems as if this is the only difference in replaceing and installing every component from stock is the drilling. Am I correct? Can the stock upper mount be re-used?

and is this next section really true ? ( not the beers part) :

"Section 4 The front struts: You may be tempted to take it for a test drive and go for beers at this point, but just remember you have to use power tools for the front half of this job."

also what is this part all about ( maybe it will be clearer when my yellows come today with their instructions) I just do not understand the point:

"10.this next part is a bit intimidating, but not nearly as difficult as it appears.
cutting the struts open:
11.the struts need to be cut open so that you can insert the Koni replacement inside or it. you will need either a steel ruler or a caliper (dial or vernier will do) that has metric units on it for this task. you need to cut the strut open 40mm or 4 cm from the top of the strut case. DO NOT EXCEED 40MM, YOU HAVE TO ERROR DO IT TOWARD THE TOP OF THE STRUT. I.E; 38MM INSTEAD OF 40MM. the reason for this will become very clear as you finish your assembly.
12.mark your strut at 40mm all the way around with a sharpie.
<img src="http://216.77.188.54/coDataImages/p/Groups/221/221110/folders/176867/1310867markat40mm2.jpg" width="468" height="377">
13.using a dremmel with the heavy duty cutting wheel score the strut all the way around the fluid from inside the strut will obscure the line you just drew since the strut is already black it isn't easy to see in the first place. A hacksaw will do in a pinch, but I do recommend some kind of cutoff tool.
<img src="http://216.77.188.54/coDataImages/p/Groups/221/221110/folders/176882/1310948usecutoffwithfiber. jpg" width="253" height="207">
<img src="http://216.77.188.54/coDataImages/p/Groups/221/221110/folders/176867/1310831cutoff3.jpg" width="446" height="277">
TIP= with the strut facing so that the bottom bracket is facing up like a \/ cut through the strut with the dremmel, all you need here is a hole about a 1/4" long. not the you have the hole cut turn the strut 180 degrees so that the forks are like this /\ then start cutting from the other side once you break through the casing on this side the strut will drain freely. the reason your not just cutting all the way around is that the dremmel spins at 6000 rpm tends to spread pressurized liquid very well. ( don't ask how I know )
14.while the strut is draining, you can cut the bump stop. remove the first bump with a razor blade, score it all the way around a few times then you can just snap it free with a twist.
15.with the strut now drained you can safely cut the rest of the strut housing and pull out the cylinder.
<img src="http://216.77.188.54/coDataImages/p/Groups/221/221110/folders/176867/1310873newstrutbottom.jpg" width="470" height="331">[/IMG]
<img src="http://216.77.188.54/coDataImages/p/Groups/221/221110/folders/176882/1310944theguts.jpg" width="470" height="144">
16.now we need to put a hole in the bottom so we can bolts the insert down and into place. measure the diameter of the bottom of the strut and divide by 2 and mark it, TIP: MEASURE TWICE DRILL ONCE. us a punch to be sure its centered. start with a small bit maybe a 1/8", then a 1/4" and so on until you get to 1/2" bit if you actually have one that is a little bigger than a 1/2" use it. it will make your life easier in the long run if the hole is a little off."


from the above, it seems as if the fronts will be more involved than the back. Do you have to use a drill press on the fronts upper mounts as well?
sorry about the length of this post, but thank you for helping with the questions.

PS. why don't the pictures in his post work?

thanks again
Re: sportlines and yellows install
Tuesday, May 30, 2006 1:33 PM
"also what is this part all about ( maybe it will be clearer when my yellows come today with their instructions) I just do not understand the point:"

"the struts need to be cut open so that you can insert the Koni replacement inside or it."

Ooops. well I figured the answer to that question out.

So I guess I am just curious about drilling the front upper mounts ( if it is neccessarry)?, and the uswe of power tools?
Re: sportlines and yellows install
Tuesday, May 30, 2006 1:46 PM
oh yeah I just found the post with pics for anyone else

http://www.j-body.org/forums/read.php?f=3&i=77664&t=77664&start=50
Re: sportlines and yellows install
Tuesday, May 30, 2006 2:02 PM
I guess that is kind of like christopher columbus finding america, when people already lived here
Re: sportlines and yellows install
Tuesday, May 30, 2006 2:16 PM
The third page of that post has working pictures. If you've never seen koni's before then you wont understand how to install them. Check out the picture and you'll understand much better. Once you have the actual parts you'll understand much better too. After you have the parts, re-read the direction. And if you have any questions just let me/us know and we'll be glad to answer any questions. I'm not trying to be an ass or anything, but once you see the yellows all of these questions will be answered.



Re: sportlines and yellows install
Friday, June 02, 2006 6:40 PM
I am in the process of doing the rears! I just logged on to check on knocking off the bottom spring perch with a hammer. Back to the garage...
Re: sportlines and yellows install
Friday, June 02, 2006 8:13 PM
yeah, you're right it has been pretty straightforward. I just need to drill out the upper mount to 1/2" and put the stuff back together, up, and in , to have completed the left rear. I don't have a drill press, but I am going to see if I can Macguyver something together.

If not I will wake up early and take it down to a machine shop tommorrow morning, then do the rear right side, and take that upper mount to the same shop later that day, so as to have both the rears completed.

Then the fronts, but I think I can handle all that hacksawing, centerpuching, and drilling at home on sunday.

Then alignment on tuesday, and I should be good.

500 miles, then I can adjust and play with em.
Re: sportlines and yellows install
Saturday, June 03, 2006 2:41 AM
be careful while drilling the rear strut mounts. if you go to fast, the metal part will seperate from the rubber part, and your strut mount will be useless





Re: sportlines and yellows install
Saturday, June 03, 2006 3:34 PM
It is all good, I just took em ( one at a time) to a local machine shop and payed their minimum shop fee of $25 for both to be drilled out. The rears are installed, and I'm lovin the stance already. I just took a break to look one more time at the front install, before I get er done.

Good lookin though.
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