Exhaust Manifold STUDS - Size? - Alfa Romeo Forum
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Exhaust Manifold STUDS - Size?

Could anyone tell me what the size of the exhaust manifold studs are please...

Job to do... expecting that one or more will shear when removing, so want to have spares available. Have found two options to acquire M8 x 43mm and M8 x 37mm.....

Anyone tell me which I should go for....

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The OE part looks like 13588521 and there are nine studs altogether.

I have no idea how long they are... but they're all the same, so if you can measure one on the edge of the head then that'll do for all of them.

It's more likely the nuts will disintegrate and round off than the stud shearing off.. but I have has studs come unscrewed with the rusted nut still attached. Spray the beasts with some penetrating spray.. a lot, over a long period of time (say 2 weeks before the job)... and let it soak in well.

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exhaust , manifold , size , studs

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