GavinT 114 Posted January 15, 2009 Report Share Posted January 15, 2009 Before I order the necessary hardware to reinstall my exhaust manifold is it best to go for stainless steel studs & nuts?, as I believe was standard on turbo engines. Or just stainless steel studs with copper nuts? Thanks Gavin Quote Link to post Share on other sites
USAndretti42 313 Posted January 16, 2009 Report Share Posted January 16, 2009 When I bought some new studs for my S2, JAE advised I use the turbo ones. Note that they are a bit longer than the old ones making getting the manifold on and off with the engine still in the chassis a bit trickier. The main thing is to put lots of Copaslip on them when you fit the nuts. Quote S4 Elan, Elan +2S, Federal-spec, World Championship Edition S2 Esprit #42, S1 Elise, Excel SE Link to post Share on other sites
mercman 0 Posted January 16, 2009 Report Share Posted January 16, 2009 Go for the stainless studs and nuts, dont forget the lock washers. Les Quote Link to post Share on other sites
trackmagic 4 Posted January 16, 2009 Report Share Posted January 16, 2009 I used ones from ARP (stainless). Extremely strong and so far working great. Has 10mm (wrench size) twelve point nuts making them easier to install. Very nice but pricey. Go to their website and search for metric stainless. Jeff Quote www.espritturbo.com Link to post Share on other sites
andydclements 788 Posted January 16, 2009 Report Share Posted January 16, 2009 Or use ones from the Jag V6 Diesel (Ralph ascertained they fit ) I cannot remember if they're steel or stainless steel, but copper nuts, and have a Torx type head so you can screw them into the head and out with realative ease. Quote Link to post Share on other sites
Buddsy 1,643 Posted January 16, 2009 Report Share Posted January 16, 2009 I would have thought the cooper nuts would be too soft or am I missing something? lol I recently bought some Permax Nickel Anti-seize which is good up to 1315 deg.C where cooper slip is good to 1100 deg C. Don Quote "Belief is the enemy of knowing" - Crrow777 Link to post Share on other sites
AJay 1 Posted January 16, 2009 Report Share Posted January 16, 2009 I use stainless steel aeroquip nuts, as per lotus spec but in A4 stainless as they are available locally at Quote Link to post Share on other sites
Buddsy 1,643 Posted January 16, 2009 Report Share Posted January 16, 2009 Sounds worth Quote "Belief is the enemy of knowing" - Crrow777 Link to post Share on other sites
giorgio67 185 Posted January 16, 2009 Report Share Posted January 16, 2009 (edited) HI Gavin, I think that ARP are very expensive, take a look here: Ebay number 250355087492 Very good and cheap, just bought and they are very well made. Cheers Giorgio Edited January 17, 2009 by ghe67 Quote Link to post Share on other sites
redlotus84 0 Posted January 17, 2009 Report Share Posted January 17, 2009 Giorgio- Thanks so much for the ebay link. Would I need M6 or M8 nuts for these manifold bolts. I have an 84 Turbo Esprit (if it makes a difference). Am going to try and do my manifold without removing the engine! Thanks, Matt Giorgio- I looked in my parts manual, and it takes the M8 nuts...only other question, flanged, or the regular ones? Thanks! Matt Quote Link to post Share on other sites
giorgio67 185 Posted January 17, 2009 Report Share Posted January 17, 2009 (edited) HI, In my opinion would be better to use good quality copper nuts with Copaslip with washer. Ask to the seller to prepare a kit with the 12 studs and washer instead of the parts not required. He's very kind and helpful, you can find copper nuts everywhere. Cheers Giorgio Edited January 17, 2009 by ghe67 Quote Link to post Share on other sites
andydclements 788 Posted January 17, 2009 Report Share Posted January 17, 2009 M8 Quote Link to post Share on other sites
redlotus84 0 Posted January 17, 2009 Report Share Posted January 17, 2009 HI, In my opinion would be better to use good quality copper nuts with Copaslip with washer. Ask to the seller to prepare a kit with the 12 studs and washer instead of the parts not required. He's very kind and helpful, you can find copper nuts everywhere. Cheers Giorgio What is the benefit of using copper nuts? Thanks! Matt Quote Link to post Share on other sites
giorgio67 185 Posted January 17, 2009 Report Share Posted January 17, 2009 They won Quote Link to post Share on other sites
GavinT 114 Posted January 18, 2009 Author Report Share Posted January 18, 2009 Thanks all. Interesting tip Giorgio. Gavin Quote Link to post Share on other sites
fenton 0 Posted January 20, 2009 Report Share Posted January 20, 2009 These S/S studs, nuts and locking tabs are a class act, check them out in the restoration section. " s3 restoration starting soon " its some of the last posts. Not cheap, but you any get what you pay for. I must crack on with this car, i,ve been on Hillys low traction incline for too long, I MISS YOU GUYS Quote Link to post Share on other sites
GavinT 114 Posted January 22, 2009 Author Report Share Posted January 22, 2009 Have gone with stainless steel studs with copperised locking nuts and ordered from SJ's. You know even with shipping to the USA it came out almost $100 cheaper to buy from Steve than buying from a USA retailer, example: st/st washer USA Retailer Price: $1.17 SJ's Price: $0.11 & locking nut,copperized USA Retailer: $3.09 SJ's Price: $0.48 The $ is quite strong at the moment which of cause helps. This is the 2nd time I have ordered from Steve and on stuff that is easily shipped he has saved me a bundle. Quote Link to post Share on other sites
redlotus84 0 Posted January 25, 2009 Report Share Posted January 25, 2009 I have ordered several times from Steve at SJ's, and in most cases (even with shipping) it is still cheaper to get parts from the UK. Matt Quote Link to post Share on other sites
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