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isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

I tried to open up the WUR to clean it, but can't get the screws to loosen. I tried to soak them overnight with croil, but that didn't work. I haven't totally deformed the screw heads yet so I will try again. Any suggestions?
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Rob
'80 931 (sold)
'80 924 NA (sold)
Former Omaha Crew

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Yikes! I don't think them WURs are rebuildable by mere mortals. . .

Uh-oh. . .'nother country song. . .
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

I think there was an article about how to rebuild the WUR somewhere on the internet. I think it might have been on pelicanparts.com, but it was a 911 WUR, but it was pretty similar to ours.

Ryan
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1978 924 NA
-250lb lowering springs, Euro Pistons

Mike924 · Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK

The insides of a WUR are very simple indeed; just a bi-metal strip and a small valve. The main problem is that the valve (steel) rusts up. Never tried it myself, but it ought to be possible to clean a seized one up.

The four screws holding the WUR together are Loctited in, which can make them very difficult to remove. I find that long, slow application of torque (with a godd-fitting screwsdriver) works best.
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org