993RS original wheel bolt corrosion
Discussion
In August, at vast expense, I had my original 993RS wheels refurbished by the supposed top refurbers in the country. Noticed yesterday that many of the little bolts (40 odd per wheel around the edge) are rusting!! Was told they were all replaced during refurb.
Is this normal?? Thanks in advance!
Piers
Is this normal?? Thanks in advance!
Piers
I'm sure that the wheels were well known for corroding in just the way that yours have - not sure about rusty bolts though - the corrosion was more the result of the chemmical reaction between the two different types of metal. ISTR that a lot of owners keep the original wwheels for GJOBing shows and stick an altenative set on - Paul Howells would know and if you're a PCGB member and can penetrate the security on their website - you'll find a 993 section (& probably a 993 RS section).
Piers. mine have not been refurbished , althogh this may be needed down the line.the thing is my bolt heads are not corroded.I beleive they are anodised. I can only assume that when they have been removed for the rebuild and hopefully replaced (£2.50 each!) someone has not used a soft socket on the bolt head and resulted in abrasion or chipping which has led to the corrosion you have.
Not good, I would go back to the firm responsible for the rebuild and ensure the bolts were replaced and assuming they were that they are of the original quality or those supplied by speedline the original manufacturer of the wheels.
Not good, I would go back to the firm responsible for the rebuild and ensure the bolts were replaced and assuming they were that they are of the original quality or those supplied by speedline the original manufacturer of the wheels.
rubystone said:
Paul Howells would know and if you're a PCGB member and can penetrate the security on their website - you'll find a 993 section (& probably a 993 RS section).
Paul is a Pistonheader and an occasional contributor to these forums
www.pistonheads.com/gassing/profile.asp?h=0&memberId=29386
I understand that there is specific torque setting for these bolts and damage can occur if these are over tight. But I thought that the damage was caused to the outer rim component as a result and not the bolt it`s self.
I looked into all of the 993RS wheel alternatives about 18 months ago. The original Speedlines are horifically expensive (around £3K plus VAT)and are known for corrosion around the bolt heads. There are other copies around, that suffer variously from quality problems. The cheapest set that I found were going to be about £800 plus VAT, but supply from Italy was a bit iffy (casting quality was blamed)
I gave up on the RS wheels in the end and went for Porsche SportClassic II`s, because I could not justify having two sets. When it comes down to quality, I dont think you should bu99er about, because you are getting into safety areas in the end.
If you have an RS on the original Speedlines look after them as an integral part of a superb package. Look after them like all the other quality bits on the car and if need be, consider a set of (safe)everyday wheels for the times that the originality doesn`t matter too much.
May be some nice second hand BBS, Cargraphic or Krone 3 piece racing wheels?...Mmmm!
I looked into all of the 993RS wheel alternatives about 18 months ago. The original Speedlines are horifically expensive (around £3K plus VAT)and are known for corrosion around the bolt heads. There are other copies around, that suffer variously from quality problems. The cheapest set that I found were going to be about £800 plus VAT, but supply from Italy was a bit iffy (casting quality was blamed)
I gave up on the RS wheels in the end and went for Porsche SportClassic II`s, because I could not justify having two sets. When it comes down to quality, I dont think you should bu99er about, because you are getting into safety areas in the end.
If you have an RS on the original Speedlines look after them as an integral part of a superb package. Look after them like all the other quality bits on the car and if need be, consider a set of (safe)everyday wheels for the times that the originality doesn`t matter too much.
May be some nice second hand BBS, Cargraphic or Krone 3 piece racing wheels?...Mmmm!
I've been looking for a spare set of rims for the track on my 993RS.
Jasmine will do the speedlines for £3400 inc VAT, compared with Gert in Belgium for £2700 inc VAT and shipping. I spoke today to BBS who could build some 3 piece magnesium racing wheels to my spec for £2500 inc VAT (Jasmine quoted £3200) so I think I will go for those.
My speedlines are really corroding, but only on the rim rather than the bolt. One day I will refurbish them. Jasmine quoted something like £200 per rim, but they also said they could now add the "speedline for Porsche" logo for another £60 (presumably that's £60 for all four!).
Zubin
Jasmine will do the speedlines for £3400 inc VAT, compared with Gert in Belgium for £2700 inc VAT and shipping. I spoke today to BBS who could build some 3 piece magnesium racing wheels to my spec for £2500 inc VAT (Jasmine quoted £3200) so I think I will go for those.
My speedlines are really corroding, but only on the rim rather than the bolt. One day I will refurbish them. Jasmine quoted something like £200 per rim, but they also said they could now add the "speedline for Porsche" logo for another £60 (presumably that's £60 for all four!).
Zubin
Dear RS fanatics,
the corrosion on the speedlines is just normal - they are italian made what do you expect ???
There are some ways of sorting the problem out :
a) getting the outer rim polished to high gloss and have stainles steel bolts put in. -
looks superbe but needs a lot of care and you loose the letters " speedline for Porsche " on the outer rim.
b) get them polished and lackered - will last for a while but the problem wíll be back in 2 years
C ) play a trick and buy new outside shoulders only -
If you are interested send me an email and i will let you know how you can get this spare part which is officialy not for sale.
In any case use stainless steel bolts and the corrosion the the bolts will not apear again.
If someone is looking for another set of rims for his 993 RS for track use he should go for BBS magnesium race rims.
They are highest quality, very very light and easy to repair and you can get spare parts easy.
I had some good experiances with FIKSE cross spoke wheels as well but would prefer BBS.
the corrosion on the speedlines is just normal - they are italian made what do you expect ???
There are some ways of sorting the problem out :
a) getting the outer rim polished to high gloss and have stainles steel bolts put in. -
looks superbe but needs a lot of care and you loose the letters " speedline for Porsche " on the outer rim.
b) get them polished and lackered - will last for a while but the problem wíll be back in 2 years
C ) play a trick and buy new outside shoulders only -
If you are interested send me an email and i will let you know how you can get this spare part which is officialy not for sale.
In any case use stainless steel bolts and the corrosion the the bolts will not apear again.
If someone is looking for another set of rims for his 993 RS for track use he should go for BBS magnesium race rims.
They are highest quality, very very light and easy to repair and you can get spare parts easy.
I had some good experiances with FIKSE cross spoke wheels as well but would prefer BBS.
Hi all
The speedline bolts,have not corroded on any of my wheels.I have 2 sets of gt2 speed lines, and 5 sets of rs/cup speedlines,that we use to race on.
I suspect they have fitted incorrect bolts and of inferior quality,only use aircraft quality none corrosive bolts and most importantly the correct spec of bolt.Even stainless bolts can be suspect on integral strength.
Great replacement wheels are BBS mags race wheels,or fikse wheels which i also use and are lighter than than the bbs mags.
A good idea is to replace the outer rim,but they will only corrode again in a couple of years.(I believe Phil Hindley has some for sale)
If you can get someone to pearl anodise the rim after they have been polished ,you will never need to worry about them again.Its the same finish as fikse do on their wheels.
The main problem with the spedlines ,is they flex around the splitrim bolts,this disturbs the lacquer and hence the corrosion.The gt2 speedlines have a steel strengthening ring on the inside of the wheel spyder,to stop the flexing.You can also purchase these rings,which would also be safer and use for ever!(not to say the rs speedlines are unsafe)
Burzel
The speedline bolts,have not corroded on any of my wheels.I have 2 sets of gt2 speed lines, and 5 sets of rs/cup speedlines,that we use to race on.
I suspect they have fitted incorrect bolts and of inferior quality,only use aircraft quality none corrosive bolts and most importantly the correct spec of bolt.Even stainless bolts can be suspect on integral strength.
Great replacement wheels are BBS mags race wheels,or fikse wheels which i also use and are lighter than than the bbs mags.
A good idea is to replace the outer rim,but they will only corrode again in a couple of years.(I believe Phil Hindley has some for sale)
If you can get someone to pearl anodise the rim after they have been polished ,you will never need to worry about them again.Its the same finish as fikse do on their wheels.
The main problem with the spedlines ,is they flex around the splitrim bolts,this disturbs the lacquer and hence the corrosion.The gt2 speedlines have a steel strengthening ring on the inside of the wheel spyder,to stop the flexing.You can also purchase these rings,which would also be safer and use for ever!(not to say the rs speedlines are unsafe)
Burzel
This seems to have turned into a thread about which wheels to get rather than how to solve the corrosion problem.
Anyway, here's my tuppence. Check out the OZ Superleggera III modular 3 piece wheels:
www.ozracing.com/usa/car/index.php?item=gallery&idw=18
Sorry, can't do the clicky thing - I am technoilliterate.
What do you think? Is OZ good enough for an RS?
Edited to say: In't technology brillyen'? It did the clicky thing all by itself.
>> Edited by Harris_I on Thursday 8th January 13:25
Anyway, here's my tuppence. Check out the OZ Superleggera III modular 3 piece wheels:
www.ozracing.com/usa/car/index.php?item=gallery&idw=18
Sorry, can't do the clicky thing - I am technoilliterate.
What do you think? Is OZ good enough for an RS?
Edited to say: In't technology brillyen'? It did the clicky thing all by itself.
>> Edited by Harris_I on Thursday 8th January 13:25
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