Nikedog

I noticed on my 99 996 Cab. the rubber belows is spliting at a crease in the bellows. Is the bellows hard to change? I haven't had time to really study how it is attached. I called 2 dealers and got quotes from $370 to $700. Anyone out there have a one sitting around from a spoiler to wing change they might want to part with?

ivangene

I think I might have a spare. PM me your email address and I will fire off a picture tonight of what I have.
Ed

redridge

its a diy.... however use a screw clamp in place of the oem pressure (squeeze) clamp... its easier this way.

gota911

Red,

He is not takling about the drive shaft bellows, the power steering bellows. He is referring the rubber accordion piece (actually called the rear wall) on the spoiler. He mentions "spoiler" in the title.

redridge

Oh... sh*t... yeah my bad. I was actually talking about the crank vent to the aos bellows. Just making sure you guys are actually reading this stuff... not like some of these guys who just post just to post and not actually read its' contents...

Doug Donsbach

This is an easy DIY.

I would advise you to replace all the clamping washers (item #9 in the diagram below, part number 999 591 974 07, 8 required) as it is a little difficult to remove those and still have them "bite" the attachment posts when you reinstall the bellows.

You'll need to start by raising the spoiler, pushing the center of the expansion rivets (item #8 in the diagram, part number 999 591 712 40, 2 required) through the rivet into the housing and remove the rail holding the top of the bellows.

Then, open the engine lid and pry off the clamping washers and remove the lower rail. You'll have to remove the cooling fan to get to one of the clamping washers, but that's trivial.

Assembly is the reverse of removal. For a professional looking repair, you should brush on some semigloss black paint on the posts that you scraped up with the clamping washers after you have everything back together but before you've reattached the cooling fan.

If leaving the plastic centers of the expansion rivets inside the spoiler housing bugs you, you can remove the plastic bolt covers at the back of the spoiler housing, loosen the exposed bolts, and snap the body-colored spoiler top off the assembly to gain access to the inside of the assembly. If you choose to do this, you can reuse the expansion rivets. However, be aware that those bolts are frequently corroded and you might end up breaking one or more to remove the spoiler top.

Nikedog

Thanks for the diagram and advice.

Wellardmac

Step by step instructions over at Renntech.

http://www.renntech.org/forums/index...667&hl=bellows

I did the job - it's really easy.

gota911

Wayne, has Phil's spoiler ever been in the extended position? I'll bet his spoiler bellows looks brand new!

Wellardmac

I have heard that Phil's bellows cracked and fell apart through lack of use.

Wellardmac

...one other thing, those prices are incredibly high. I paid $68 from Sunset Porsche (last year). I think that your dealers are ripping you off, or quoting you for the wrong part.

Here's the part # that you need:

Spoiler Trim, Porsche Part #: 996 512 250 00

Good luck!

DTMiller

Time for a sick bump/thanks to the forum. Found this thread and replaced my spoiler trim yesterday. Also very useful is this renntech DIY step by step http://www.renntech.org/forums/tutor...-rear-spoiler/ which is linked to in the post by Wellardmac above.

Pic of finished product. Forgot to take a before pic, but it was gray with a crack along two of the creases on the bellows.

Uploaded with ImageShack.us

LordVicious

Very first DIY I did on my 996. At this point I would imagine virtually every rear wall has failed, so if you haven't swapped yours out already take a look, I bet it's split and you don't even know it.

Long Islander

Do they fail from just being compressed for long periods? Or do they fail from raising and lowering the spoiler a lot?

DTMiller

Not clear. Mine just looked like it had deteriorated from being a piece of rubber that has been exposed to the elements for 15 years. If, indeed, it is the latter, KrazyK's will never need to be replaced.