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New R18 Member and Drop Link fiasco!

AndyW1973

PCGB Member
Member
I bought my 2004 Boxster S around a year and a half ago and have just recently joined R18. Hopefully I will get to meet some fellow members when I find the time to get to my first R18 meet.

I though for my first post on this forum that I would share my recent not-so-pleasant experience of changing all four anti roll bar drop links.

When I bought my Boxster it soon became apparent that there was a slight clunking or knocking sound when driving at low speed on uneven road surfaces - those painted rumble strips being truly horrible sounding. Having the M030 suspension package, which is already pretty unforgiving of bad surfaces, combined with 18 inch rims made for a pretty noisy ride. Last year I decided to replace the anti roll bar bushes, hoping that this would cure the noises. It did improve things a bit but the problem was still there. I decided to try replacing the drop links as, having done these before on other cars, I knew it was a pretty simple and easy job. Wrong.

Those who haven't yet had the fun of doing this job might like to know of the unexpected pitfalls that may await them. The drop links on most cars have a small (about an inch) thread at each end - one goes into the end of the anti roll bar, the other into a bracket mounted on the suspension strut. It's a fairly simple job of persuading the old nuts off and they just come out. On the Boxster, however, one end of the link has about four inches of bar that goes right through the strut and hub, holding it all together. This is where the problems begin.

Unfortunately, after being on the car for many years (probably since new) they are a real pig to get out! The first (n/s front) one came out with a bit of gentle persuasion from a rubber mallet and piece of wood but the o/s one was to firmly hold its ground for the next two hours. With limited room to bash it with a lump hammer it was a real battle to get the stupid thing out but, after lots of swearing and grazed knuckles, it eventually yielded and was out. Not surprisingly the rear o/s was just as stubborn, taking three hours to evict, due to even less space for a good hammer swing and the proximity of the brake lines.

I reluctantly decided to attempt the final one vowing that I would leave it until the following evening if it looked like another fight was in order. To my surprise it moved fairly easily, only taking half an hour before victory was mine. After nine hours of frustration, blisters and grazes the job was done. I even managed to summon the enthusiasm to take the car for a test drive to see if the clunks had gone. Success! It is a transformed ride. The rattles and knocks are no more making the job well worth doing - I just don't ever want to do it again.

Next on the list: Front engine mount...

Andy



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Hello,
I have to replace the front springs on my boxster, so I have to remove the drop link you have had problems with. I will let you know how I get on.
 
Good luck! I hope you have an easier time than I did. I found the rears more difficult due lack of space to get a good swing and the bracket that holds the brake pipe being in prime striking position of the lump hammer! I managed to bend it a number of times (putting unnecessary strain on the point where the copper pipe enters the caliper). I bent the bracket back into position each time and managed to get away without rupturing the pipe.

I ended up making a tool from a hex bit socket to extend the droplink bolt a bit so that it wasn't behind the level of the bracket - it will become obvious what I mean when you try and hit the end of the bolt! I ground off most of the depth of the socket and placed it on the end of the bolt and hit the hex end.

Enjoy!

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Release oil is your friend ;-)

Also, if you can, run a gas torch onto the offending bolt or nut (nut ideally). The thermal expansion can often be enough to break the joint. I appreciate this isn't always possible and a nice tight flame is best to focus the heat.

Sorry, I should have started with "Welcome to the forum Andy" so....Welcome to the forum Andy.
 
I did use a lot of penetrating oil, but I'm not sure how much it helped as the enclosed 4 inches of the bolt was dry when it came out and covered in corrosion. I believe the hub assembly it goes through is Aluminum Alloy, so I was reluctant to put heat onto it. Presumably Galvanic Corrosion due to the different metals is what is causing the difficulty in getting them apart.
 
They a bastereds to get out, and should be taken as 'single use' imo.

I find that heat can travel down and melt the plastic that the ball sits in. :)
 
Looks like I spoke too soon in my original post....

Took the car out yesterday to have the front engine mount replaced and after about half an hour of driving the knocks were back on bad surfaces [:mad:] definitely coming from the rear.

It would appear that on the day I replaced the links the cold weather (around freezing) masked the problem. With the temperature around 7 degrees the noises where back. I had noticed in the past that it was much quieter in cold weather, but it never occurred to me when I test drove it. Anyway, The engine mount was replaced (garage had a look around the rear suspension, but found nothing unusual), the noise was still there on the way home so it's not the mount that was the causing it.

Next on the list is replacement of the rear control arms (the ones with the fork end) as I believe these are a common cause of the type of issue I have and are often quieter the colder the weather. I will eventually get to the bottom of this!
 

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