Bits of 964 falling off?!

Bits of 964 falling off?!

Author
Discussion

matthewc

Original Poster:

14 posts

265 months

Saturday 27th January 2007
quotequote all
My wife drove my 964 for a day and came back to report a scraping noise...it turns out that the rear part of the undertray had basically fallen off and was scraping on the road. I have since removed it, but was told it would cost me £1000 to get it replaced, which sounds like a colossal amount for a chunk of plastic. Does anyone know if it actually needs replacing (given that the car is garaged and usually driven in dry conditions)? Thanks

Vesuvius 996

35,829 posts

273 months

Saturday 27th January 2007
quotequote all

They just don't make them like they used to, do they.

Sorry... sorry.....

997gt3

3,135 posts

216 months

Saturday 27th January 2007
quotequote all
Just spoke to Simon Butterworth @ Porsch-Apart. They are fibreglass apparantly. You may find one on Ebay if you're lucky.
The last one he bought was around £600 + vat = £705 then fitting. May not be £1000 but not far off.

ukwill

8,922 posts

209 months

Saturday 27th January 2007
quotequote all
no it doesn't need replacing. lots of 964 owners remove them to try to help keep the engine cool.

sleep envy

62,260 posts

251 months

Saturday 27th January 2007
quotequote all
matthewc said:
Does anyone know if it actually needs replacing (given that the car is garaged and usually driven in dry conditions)?


AFAIK it's to stop the underneath of the engine getting mucky

S'pose if it can't be repaired to enble you to remount it, leave it off if it's a dry weather car

wildoliver

8,806 posts

218 months

Saturday 27th January 2007
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They go for about £60 on ebay?

Are you sure it isn't just the bolts that have come out?

warmfuzzies

4,009 posts

255 months

Saturday 27th January 2007
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Its got several functions, aerodynamics, drive by noise levels and keeping the little old girl clean.

kevin

melv

4,708 posts

267 months

Saturday 27th January 2007
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Leave it off!! (Assuming you mean the undertray that covers the engine.)

Specialists usually have loads of these floating around -don't buy a new one if you feel u really need it. In fact -there is one in the roof of my garage now looking for a good home.....


Edited by melv on Saturday 27th January 17:41

matthewc

Original Poster:

14 posts

265 months

Saturday 27th January 2007
quotequote all
Many thanks guys, I think that your answers have confirmed what I thought, although I will have a look on ebay for one. (Yes it is not just that the screws came out - one corner of the thing has snapped off) Cheers.

matthewc

Original Poster:

14 posts

265 months

Saturday 27th January 2007
quotequote all
Melv - if you do indeed have a spare one which you do not need then I would be interested.
Thanks

stuttgartmetal

8,110 posts

218 months

Saturday 27th January 2007
quotequote all
If they are made of fibreglass. thats the very easiest material to repair, can't it be fixed ?

Those 964's are supposed to be collectors cars,
yep, drive 5 miles, then go back and collect all the bits.


[I jest]

TimJMS

2,584 posts

253 months

Saturday 27th January 2007
quotequote all
I hear that even when brand new, some 996 GT3's were the same.

Exhaust systems are much harder to collect than fibreglass trays though!

9hellheaven

1,595 posts

211 months

Saturday 27th January 2007
quotequote all
I was told a tell tale sign of the understray being missing is the oil stains on the garage floor!
Is the undertray the sumps sump??

laugh

melv

4,708 posts

267 months

Sunday 28th January 2007
quotequote all
Matthew -tried to PM you, yr e-mail not valid.

PM me and I'll give u contact number -I'm based nr Egham, BTW.

rubystone

11,254 posts

261 months

Sunday 28th January 2007
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A number of us found that the exhaust valve guides wore faster than expected on the 964RS. This was traced to the rear undertray which prevented the heat escaping. Once these were removed, the heat could escape. My RS had covered just 23,000 miles when I buzzed the engine and thus had to have a top end rebuild. The guides were badly worn and were replaced as part of the rebuild. Needless to say, I left the undertray off.

I'm not sure how much of an issue it was with standard 964s though.

meno-porsche

228 posts

248 months

Sunday 28th January 2007
quotequote all
matthewc said:
My wife drove my 964 for a day and came back to report a scraping noise...it turns out that the rear part of the undertray had basically fallen off and was scraping on the road. I have since removed it, but was told it would cost me £1000 to get it replaced, which sounds like a colossal amount for a chunk of plastic. Does anyone know if it actually needs replacing (given that the car is garaged and usually driven in dry conditions)? Thanks



Matthew, do not believe "basically fallen off" and can't help wondering what your wife did to break the undertray - speed bumps at 40 perhaps?

Suggest you might want to check the rear suspension as well!! A broken undertray might be indication of something else, i.e. you rear struts are feeling their age.

As for needing it- no however I have been told it does help keep the garage clear of oil spots

Andy

cerowe

82 posts

284 months

Monday 29th January 2007
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Vesuvius 996

35,829 posts

273 months

Monday 29th January 2007
quotequote all
cerowe said:


Or this.

http://cgi.ebay.co.uk/Porsche
964ownerwithbrokencar-wifebeater-kit.html


Edited by Vesuvius 996 on Monday 29th January 22:06

matthewc

Original Poster:

14 posts

265 months

Tuesday 30th January 2007
quotequote all
thanks for the help, but all I need is the rear part which is about 120cm*60cm. I think that I have found one, but even if I have not it sounds like I can live without it.

slo-bob

2 posts

209 months

Tuesday 30th January 2007
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You would be hard pressed to find a 964 here in the U.S. that still has it's sound attenuation shield still on. I bought one of the few and immediately removed it. While one could make the case that the shield keeps goo off your engine in inclement weather, the downside is heat retention in warm weather. Most agree the positives of removing far outweigh the negative. My understanding is that the shield was installed to comply with Swiss sound level regulations. If that's really the case, why all cars built would have them remains a mystery to me.

Bottom line-You're better off that it's off and to buy one is a waste of money and space.