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View Full Version : C20LET exhaust Studs ???


Plug
02-10-10, 12:40 PM
Right after trawling around marsh barton in exeter going into every motor factors i could see and asking for Exhaust manifold Studs they all laughed ???

Where can i get these ? and how much am i looking at?

Just looked on autovaux and cant see them listed

Joe
Iain
02-10-10, 12:41 PM
I got some for an XE, studs and the weird nuts, from Vauxhall.
Plug
02-10-10, 01:07 PM
arhh i thought this sortta stuff was nls

expensive?? there copper nuts arnt they

anyone epc me a part number?
Edd
02-10-10, 01:31 PM
Just get the studs which are NOT nls and use stainless nuts and washers
craig green
02-10-10, 01:56 PM
I cant fathom why C20LETs use those massive odd copper things anyway. Unless someone wants to enlighten me?

I got M8 studs from vauxhall, good quality & thread into the head nicely. Some I got from a local engineer's were awfull & would have ruined the threads in my head if I persevered with them.

The other option is to buy a length of M8 studding & cut/file your own. Obv you need a bench, vice & relevant tools for this.
phazer
02-10-10, 02:23 PM
I presume it's because of the heat. Copper will soften and expand and contract from temparature extremes without fracturing. Steel is harder and likes to corrode itself to steel studs. Stainless steel is harder still and brittle under extreme heat loads and mechanical force i.e. vibration.
16v Nova Kev
02-10-10, 02:27 PM
i just bought some out of vauxhall 14quid for the studs and nuts.
Edd
02-10-10, 02:28 PM
Ahh see your point but iv never had trouble with using stainless nuts
craig green
02-10-10, 02:31 PM
I'm sure the studs & copper nuts I bought from vauxhall didnt cost anything like £14.

http://i30.photobucket.com/albums/c323/turbocraig/NovaGSi-WIP_pics/Progress-sale020.jpg
phazer
02-10-10, 02:34 PM
Ahh see your point but iv never had trouble with using stainless nuts

I doubt any of us on here would either given the number of times things get taken apart lol I was more talking about why a manufacturer would choose copper :thumb:
Andy
02-10-10, 02:39 PM
i bought some not so long back,sure theyre about 12p+damage from autovaux.They werent dear
16v Nova Kev
02-10-10, 02:42 PM
I'm sure the studs & copper nuts I bought from vauxhall didnt cost anything like £14.

http://i30.photobucket.com/albums/c323/turbocraig/NovaGSi-WIP_pics/Progress-sale020.jpg

well do you want me to post a pic of the recipt:thumb:
craig green
02-10-10, 02:52 PM
No No.
Plug
02-10-10, 05:07 PM
ill have an item number thou :)

Ive been looking on auto vaux for hours now and cant find them :(
Iain
02-10-10, 05:10 PM
Auto Vaux site is crap, give them a call.

Think I bought new studs and nuts for both the exhaust and the inlet and it was about £20.
Plug
02-10-10, 05:12 PM
will be phoneing them monday then :) along with universal turbos haha
vx kev
02-10-10, 06:28 PM
What i found whilst building a C20LET in the past was that with the standard manifold copper nuts, where it tapers out at the end they fowld on the manifold on a few of the studs. Hence why normal nuts without the tapered bit go on with no probs so the silly looking things were Vauxhalls remedy.