Manifold Studs

[pork hunt drifting]

Got the spacer for the new turbo the other day and tried to pull out a stud out my exhaust manifold to get longer ones matched up and bent a spanner in the process. (they do cum out?) is my best bet to use an oxy?

[wolverine]

lube is your friend....

....as for the studs, WD40 soaking and time.

[Daleo]

Got the spacer for the new turbo the other day and tried to pull out a stud out my exhaust manifold to get longer ones matched up and bent a spanner in the process. (they do cum out?) is my best bet to use an oxy?

Yeah, a bit of localised heat will do the job nicely, you can also buy aerosol can "Freeze Spray" this stuff is excellent if you have limited access, or wiring nearby.

[66yostagea]

I broke three studs just trying to undo them. Luck a local guy had all the gear to get them out in situ. Cheap at $100.

[pork hunt drifting]

I'll try get the oxy over the weekend and heat the bastards up then.

[KiwiRS4T]

Soak them in WD40 CRC or similar. Put a nut on the end so it is flush and give it a few smart whacks with a hammer (if you can get a decent swing). Most people seem to end up with a few that have to be got out the hard way!! (Heat is for the head, not the studs).

[QWK32]

3 of mine came out fairly easy with a good soak in inox, the other broke off. they are made from a hard high tensile steel that a normal HSS drill wont touch, lucky i had access to some tungsten carbide cutters.

[BCCairns]

3 of mine came out fairly easy with a good soak in inox, the other broke off. they are made from a hard high tensile steel that a normal HSS drill wont touch, lucky i had access to some tungsten carbide cutters.

Sorry to bring up old post but planning to check and possibly replace exhaust manifold studs.

You reckon this method would work. http://www.ehow.com/how_5529323_remove-manifold-stud-toyota-truck.html

General jist wined on two nuts one on in reverse and turn inside nut.

Would be interested to get anybodies two cents on the method.

[QWK32]

Yep, that's how you remove the studs. Only problem is if the studs break off when removing the nut, or removing the stud. If that happens you in for some fun trying to get them out.

The studs that bolt into the head are easier to remove than the 4 turbo mounting studs if you snap them off as they aren't hardened.

I didn't have any trouble with the exhaust manifold -> head studs, in fact some of them were already loose!! It was the turbo mounting studs that caused me issues.

[Sunkist]

If you need new studs, try these out,

I just bought them for my manifold and turbo - dump.

stainless steel with a copper nut.

The ones Nissan have put it are old(clearly lol) they are gonna F up when they come out.

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=200356383346&ssPageName=STRK:MEWAX:IT#ht_1050wt_905

If you need em

[QWK32]

If you need new studs, try these out,

I just bought them for my manifold and turbo - dump.

stainless steel with a copper nut.

The ones Nissan have put it are old(clearly lol) they are gonna F up when they come out.

http://cgi.ebay.com....T#ht_1050wt_905

If you need em

those ones are no good for a RB head, you need a fine thread, M10x1.25 and the studs are about 50mm long.

[Sunkist]

those ones are no good for a RB head, you need a fine thread, M10x1.25 and the studs are about 50mm long.

maybe send him a message, he does have smaller threads he's got a huge range.. designed for RB's as well.. get em overnight aswell.

[BCCairns]

Cheers Qwk and Aaron.

Thanks for the heads up on those ebay studs I'll look into them. Was just going to get the justjap ones.

I'm not to sure how good my Exhaust Manifold gaskets are so i'm toying with the idea of replacing if i'm going to go to the effort of replacing studs.. Qwk do you know if there is enough movement to do it without removing the turbo, if not I suppose I will do the turbo studs and gaskets as well.

cheers for ya advice.

[QWK32]

definitely replace the exhaust manifold gasket, the last thing you want to do is have to pull it all back off to change it down the track. easier to do at the same time as the studs. it will be hard to do with the turbo still on, you will struggle to get onto some of the nuts around the turbo area.

my advice would be to remove the turbo to make it a lot easier to work on the manifold. change your manifold studs and gasket. also change the T3 turbo gasket while its off (you can reuse them but they are cheap to replace), and another one to keep in mind is the turbo dump gasket, it is a steel one like the T3 gasket so you can reuse it but again, it is cheap enough to replace. you can get all those gaskets of ebay but i'd recommend using someone like kudosmotorsport or justjap (site sponsors) atleast you know your getting the right ones, make sure you double check your stud thread size and pitch before ordering anything. it would suck to remove it all and have the wrong studs.

i would be leaving the 4 turbo mounting studs alone, unless they are damaged or get damaged during removal they are probably more trouble than its worth to replace. they are hardened steel and if you break one, unless you have access to some good metal working tools, you will struggle to get them out, normal HSS drill bits wont touch them, i had to use a tungsten carbide cutting tool to remove one of mine that snapped off. i've done a few turbo gasket changes and stock turbo swaps and just left them alone, never had any troubles down the track. the only reason i swapped them out on the stagea was to fit longer studs to fit a spacer place and bigger turbo to the stock manifold.

you never know, you may be lucky and they come out easy, 3 of mine came out easy using the method you posted earlier, there was just one that had to ruin my day

[BCCairns]

Thanks Qwk your a champ. I really appreciate you taking the time to go through that. It's nice to have a good idea of the job before tearing everything down.

Cheers again.