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I need a new exhaust manifold gasket and the studs/bolts for the RB25DET.

Does anyone know where to get one from ? are they the same as the RB30 ?

Also, what about the studs/bolts ?

If anyone could point me in the right direction ie. Part numbers etc (can i get these at my local repco?)

Thanks guys ;)

In Sydney i got the gasket and all new studs from Nissan (there are 3 Nissan dealers to the best of my knowledge in Sydney flogging new Nissan import parts)

The Nissan studs are mild steel jobbies. If you can get an R33 stud go to someone like Hobson Fasteners and gets some nice High Tensile Studs (i will be if the manifold ever comes off again)

joel i can assure u the break very easy cause people overtighten them ( u must use a torque rench ) and they get brittle cause they get very hot then cool down and again and again , its very common with the skyline ( broken exhaut manifold studs )

Roy:

The Nissan studs are mild steel jobbies. If you can get an R33 stud go to someone like Hobson Fasteners and gets some nice High Tensile Studs (i will be if the manifold ever comes off again)

I understand the standard studs break rather easily however if you seek aftermarket hight tensile studs these shouldn't break.

hi, i had some exhaust studs break too.

They were number 5 & 6 cylinders. They are a real bugger to drill out whilst the motor is in place. I was quoted about $600 to do it, so I bought the studs and washers and gasket from nissan for about$150 and hired a 90 degree drill($20) and replaced the studs with the help of my dad- took the best part of a Saturday - dismantling, drilling, fitting studs and reinstalling everything.

I used some really unusual screw extractors (looks like a rod with about 8 ridges running down the length of the extractor - some german brand), 'just drill ahole in the centre of stud' and bang them in and twist - was quite easy to extract them BUT not easy to drill!, tip... leave exhaust manifold on if you can to help guide the drill, save slipping off and drilling the soft aluminium.

I'm glad bolts were mild steel, very easy to slip off centre with drill. I agree with the person who said the high tensile ones go brittle and can break too, there is alot of weight hanging off them (turbo and front of exhaust system).My mild steel bolts lasted about 12 years.

Stephen

stephen , the tools u use to extract the studs are called easyout. u must drill the right size hole it tells u on the easyout bit put the easyout in the hole turn anticlockwise and out she comes .

u 'll find if u dont touch these studs they wont break but when people take manifold off they usualy do them to tight so they break soon after . dont forget that they get very hot and then cold so they become brittle too.

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