Stud

[Elfstone]

Morning all,

Quick question, I hope.

There are 4 threaded studs on the top of the exhaust manifold that bolt the turbo on. Are these part of the casting or seperate studs that are screwed in to it? I suspect the latter but would like some confirmation before I start to have a go at them!

Thanks guys and girls for any info.

[Guest]

They are separate studs, I know cos mine broke and had to replace the manifold cos I couldn' manage to drill them out and get a decent thread back in again.

You can get them from Toyota or your local friendly exhaust place, standard size exhaust manifold studs.

Cheers

[surfenstein]

when i replaced my turbo the studs broke,so i removed them and fitted them with stainless steel studs and nuts,that way they wont corrode,a little more expensive but worth it in the end.

[Elfstone]

Thanks guys,

One of mine has broken, but it sheared off level with the top of the base flange on the turbo so I hope I have enough to grip and get it out. I thought I might try the old 2 nut trick first though.

By the way, vatchman, where did you get the stainless steel ones from? I might look at gradually replacing many of mine as I tinker.

[surfenstein]

Thanks guys,

One of mine has broken, but it sheared off level with the top of the base flange on the turbo so I hope I have enough to grip and get it out. I thought I might try the old 2 nut trick first though.

By the way, vatchman, where did you get the stainless steel ones from? I might look at gradually replacing many of mine as I tinker.

hi sorry about the delay in replying.im lucky enough to work for caterpillar building marine diesel engines so i came across some in the stores. but i would of though some one like thunder bolts,serco ryan or another engineering supply company would be able to get hold of them for you.

[jet1749]

Watch out changing those studs! They will more than likely be high tensile steel, stainless steel contrary to what a lot of people think has less strength than carbon steel, also stainless steel "work hardens" so anywhere its fitted that is subject to heat and/or vibration can make it crack.

[NiftyNev]

It's better to stick with the high tensile studs and use an Anti-Sieze compound on the new ones.

Neville

[surfenstein]

Watch out changing those studs! They will more than likely be high tensile steel, stainless steel contrary to what a lot of people think has less strength than carbon steel, also stainless steel "work hardens" so anywhere its fitted that is subject to heat and/or vibration can make it crack.

..never thought of that,maybe it wasnt such a good idea.i will keep an eye on em.