garytipping Posted February 25, 2018 Share Posted February 25, 2018 Hi All, The wheel bolts on my car are rusty, so I thought I would paint them. Having taken them out I find the domed 'washers' are breaking up. Is this caused by corrosion or over tightening or both? Any recommendation on replacements, and where from? Regards Gary Link to comment Share on other sites More sharing options...
Bushman Posted February 26, 2018 Share Posted February 26, 2018 mine were the same, caused by galvanic corrosion. be careful when you order new ones, you need radius seat washers not taper seat washers, very similar to look at especially with on line pics. I put hubcentric spacers on mine that came with extended bolts with radius seat washers. Link to comment Share on other sites More sharing options...
garytipping Posted February 26, 2018 Author Share Posted February 26, 2018 Thanks Bushman, Ordered a specific set from design911 so hopefully they should be ok when they arrive tomorrow. Look like they should have decent corrosion resistance. 1 Link to comment Share on other sites More sharing options...
DJMC Posted February 26, 2018 Share Posted February 26, 2018 Did you call Design911 and check, or go by the photos? I ask as a Porsche battery they illustrated was not the one actually in stock when they checked their stock. Anyway, you'll know soon enough when they arrive and you can check against the old ones. Link to comment Share on other sites More sharing options...
garytipping Posted February 27, 2018 Author Share Posted February 27, 2018 Here's hoping! I went by the photo and their listing. As you say, I'll find out later Cheers Gary Link to comment Share on other sites More sharing options...
Buggyjam Posted February 27, 2018 Share Posted February 27, 2018 (edited) Just a bit of help. When you re torque the new bolts, you’re meant to use aluminium paste. It’s a devil to find, I think design911 sell it. Made by castrol. My local OpC kindly gave me some free in a bag from their workshop. Some people use copper grease but you really shouldn’t use that, it has different properties of friction etc. You put the grease on the thread and between the washer and bolt head. It tells you how in the owners manual. Stops corrosion and also validates the torque setting for the wheel bolts. Edited February 27, 2018 by Buggyjam Link to comment Share on other sites More sharing options...
Buggyjam Posted February 27, 2018 Share Posted February 27, 2018 Also as an aside I now re paste and retorque the bolts if they’ve ever come off anywhere other than the OPC. After it had been into a specialist in England, one wheel bolt came loose and fell out and after it had been into a bodyshop one wheel bolt was tightened to something silly north of 150nm. I suspect they’d just used a breaker bar to tighten. Porsche discovered that when they were fitting up for a replacement locking wheel nut the bodyshop lost :D. When I took the bolts out I discovered they’d not had grease for years and were starting to corrode so that’s why I sorted them out myself. Generic places not specialising in Porsche like bodyshops or tyre centres perhaps (not all of course) don’t bother checking the torque values relevant for the car and maybe just use “arm wrench”. It’s amazing really when you think these things hold the wheels on. Always worth checking yourself if someone has ever had the wheels off. Link to comment Share on other sites More sharing options...
garytipping Posted February 27, 2018 Author Share Posted February 27, 2018 Thanks buggy jam, I'll check it out in the manual. Cheers Gary 1 Link to comment Share on other sites More sharing options...
DJMC Posted February 28, 2018 Share Posted February 28, 2018 Buggyjam... I guess the torque figures are in the owner's manual, yes? If not, where do we find them? I'll ask my OPC for a little pot of aluminium paste when the car goes in for its 40k service this Friday. Link to comment Share on other sites More sharing options...
garytipping Posted February 28, 2018 Author Share Posted February 28, 2018 Ordered a tube of Castrol Optimoly from eBay £14.99 delivered. Thought I might get some from Trident racing or Fearnspeed at Silverstone but no luck. Great if you can get some from your OPC. The torque figure in my manual is 130Nm Link to comment Share on other sites More sharing options...
Buggyjam Posted March 1, 2018 Share Posted March 1, 2018 11 hours ago, DJMC said: Buggyjam... I guess the torque figures are in the owner's manual, yes? If not, where do we find them? I'll ask my OPC for a little pot of aluminium paste when the car goes in for its 40k service this Friday. Thats it mate back of the manual somewhere Link to comment Share on other sites More sharing options...
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