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P911X50
Monza


Joined: 03 Jan 2017
Posts: 206
Location: Hertfordshire


PostPosted: Sun Jun 10, 2018 9:35 pm    Post subject: Oil found on inner front left wing - any ideas Reply with quote

Hi

I've found oil on the inside of my nearside front wheel. Any ideas what this could be? Dont know
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vlad
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PostPosted: Sun Jun 10, 2018 9:38 pm    Post subject: Reply with quote

is it very thick, almost tar like ? if so probably split CV boot.

If so its the grease from the CV joint being thrown out through the split
 
  
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Griffter
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Joined: 22 May 2016
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PostPosted: Mon Jun 11, 2018 6:34 am    Post subject: Reply with quote

Is it definitely oil? Could it be brake fluid?
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13956
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Mon Jun 11, 2018 6:44 am    Post subject: Reply with quote

Split cv boot usually leaves a ring of grease around the inside perifery of the alloy.
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Paynewright
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Joined: 17 Apr 2018
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PostPosted: Mon Jun 11, 2018 7:38 am    Post subject: Reply with quote

Several brake lines and power steering lines are routed on the N/S.

Ian
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
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Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Mon Jun 11, 2018 7:42 am    Post subject: Reply with quote

Is it a tip? Doesn't the tip have an oil rad up front? My 850i once sprung a leak like that and it was the oil pipe from box to rad.
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Stoo.c
Monza


Joined: 07 Apr 2014
Posts: 176
Location: Hertfordshire


PostPosted: Mon Jun 11, 2018 10:01 am    Post subject: Reply with quote

You've got AC pipes there as well which can look wet if they spring a leak although doesnt really look oily.
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P911X50
Monza


Joined: 03 Jan 2017
Posts: 206
Location: Hertfordshire


PostPosted: Mon Jun 11, 2018 1:44 pm    Post subject: Reply with quote

Thanks Folks,

The oil/fluid starts from right from very the top of the suspension mounting/shock absorber, there was a rubber nipple, I recall, could that be the culprit?

I did check the rubber gaiter and they all seemed fine. Hope this helps?

Thanks
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P911X50
Monza


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Location: Hertfordshire


PostPosted: Mon Jun 11, 2018 7:09 pm    Post subject: Reply with quote

I've also remember noticing that it has taken off some paint. Possibly brake fluid or maybe Pentosin?
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EGTE
Imola


Joined: 06 Jul 2015
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PostPosted: Mon Jun 11, 2018 9:03 pm    Post subject: Reply with quote

Brake fluid is extremely powerful at paint removal, yes.
 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5128
Location: Brighton


PostPosted: Tue Jun 12, 2018 7:01 pm    Post subject: Reply with quote

Sounds like your n/s/f shock absorber is leaking .. fluid will come out from under the bellows or below the bump stop .. lift bellows and take a picture if possible for us to confirm .

If a brake fluid leak then you need to get it checked asap .. the pedal should be soft by now .

Also as mentioned .. brake fluid is corrosive .. you dont want it on any paintwork !

Some pictures please Smile
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P911X50
Monza


Joined: 03 Jan 2017
Posts: 206
Location: Hertfordshire


PostPosted: Tue Jun 12, 2018 7:48 pm    Post subject: Reply with quote

Thanks,

I'm back home on Wednesday night. I do remember the front knocking a little when driving over speed bumps. Is the fluid in the shocker corrosive?

I will post pics Thursday morning
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deMort
Zolder


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Wed Jun 13, 2018 7:24 pm    Post subject: Reply with quote

Im not sure im afraid .. i dont think so , it doesnt really spread that far to reach the bodywork .. brake fluid is if left on paint work .... but if it was that i think you would have very poor brakes by now .
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maldren
Österreich


Joined: 07 Oct 2016
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PostPosted: Wed Jun 13, 2018 7:45 pm    Post subject: Reply with quote

P911X50 wrote:
Is the fluid in the shocker corrosive?


I don't know as Damper fluid isn't something you really come into contact with but they are both hydraulic fluids so I wouldn't risk it - wash it off well with plenty of detergent, ideally I would use my pressure washer.
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2003 996.2 C2 Coupe Arctic Silver
 
  
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P911X50
Monza


Joined: 03 Jan 2017
Posts: 206
Location: Hertfordshire


PostPosted: Sun Jun 17, 2018 1:14 pm    Post subject: Reply with quote

Hi

As promised. please see picture from nearside front. I had steamed cleaned and painted the inside wing, removing wheel liners etc. So it was very clean before this appeared. Any ideas where this is coming from?
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deMort
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Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Sun Jun 17, 2018 3:37 pm    Post subject: Reply with quote

Have a look at the driveshaft rubber boot that goes into the hub .. is there any grease on it ( split ) .

I cant see the shock absorber very well but is it wet at the base of the chrome shaft ?
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P911X50
Monza


Joined: 03 Jan 2017
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Location: Hertfordshire


PostPosted: Sun Jun 17, 2018 3:56 pm    Post subject: Reply with quote

Hi

I've checked both and they are both dry. I've stuck my finger the hole you seen in the picture and its wet and the the oil looks greenish? pentosin?

Thanks
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deMort
Zolder


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Sun Jun 17, 2018 4:21 pm    Post subject: Reply with quote

Aghhhh it all becomes clear !


Have a look at the clutch fluid lvl .. its going to be over flowing .. you have a problem with either the slave cyl or the power steering pump with the slave cyl being the most obvious.

Clutch resevoir is o/s/f and next to the battery under the panel.


EDIT to explain a bit better .

The clutch system is pressure assisted , the pressure comes from the power steering pump.

There is an accumilator which holds the pressure next to the slave cyl.

There are internal seals in the slave cylinder which stop the pressure getting to the low pressure , the fill side .

These can fail and allow pressure to be applyed to the fluid from the clutch resevoir .. this will in turn slowly over fill and the power steering lvl will drop.

Pentosin Is corrosive to rubber .. youll need to wash it away and make sure that anythat has got onto rubber pipes is cleaned off.
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P911X50
Monza


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Location: Hertfordshire


PostPosted: Sun Jun 17, 2018 5:50 pm    Post subject: Reply with quote

Thanks, very informative.

Any ideas on cost to repair?

Thanks thumbsup
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5128
Location: Brighton


PostPosted: Sun Jun 17, 2018 6:51 pm    Post subject: Reply with quote

you need to pull the panel off to confirm its that and the most obvious is the slave cyl but it is possible its also the power steering pump.

Time wise 2 hours to replace the slave cyl plus parts .
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