Help! broken stud

[Feryha]

Hello ppl

I really need help of you guys as my car sound like a jet when it is on 5000 rpm+ , I checked and found that the exhaust manifold studs broken.

I plan to go to the mechanics but i believe it will be costly because the labour involved. If anyone here experience the same problem and go to the mechanics can u advice me how much it will cost ?

and if it is cost a fortune I will fix them my self but I need tips about how to get the broken studs out and do I need a new gasket and torque wrench in tighten back the stud

Thanks I really appreciate

[DJ_L3ThAL]

one of my bolts is missing, fortunately for me i just get a slight ticking noise, boys at ice performance told me to leave it for now, if i get a bigger turbo or it starts getting noisy then i should bother replacing it, its a common problem with skylines so i'd say just leave it unless its real bad, then head over to ice performance and see what they say

[Jetdat]

you can buy broken stud fix kits, which arent too costly, but a little fiddly...

[DJ_L3ThAL]

where from ? how much ? might as well do mine if it aint too hard

[Jetdat]

well i bought mine about 6 years ago, cannot remember how much exactly but i do remember it being cheap...around $30 i think. But there are more expensive kits that will last longer.(i only used mine twice and its still like new mind you)

It involves drilling in to the broken stud and screwing the tool bit into it, which has a reverse thread, so that you are actually screwing it anticlockwise and is tapered (similar to a tapping tool if you used one to tap a thread before). The tapered tool bit bites in to the stud and as you keep turning anticlock it brings the stud out.

Try shops that sell tools or nuts/bolts, or car parts such as repco.

[kik-ass]

Just fixed the same problem on my R33. When installing a new dump pipe noticed a stud missing, turns out it was sheared off. Another three broke when I tried to remove the manifold. Turns out it is a common problem on these and RB30's. Caused by a warped exhaust manifold so you need to take your head off and get it to a head specialist or similair along with your exhaust manifold. I got all the studs removed and a new set installed plus the manifold machined flat for $150. A genuine top end gasket kit from nissan will set you back between $220-$300 depending if you can get it trade or not. If you remove/replace the head yourself they are the only real expenses. Pain in the butt job for just a few broken studs but it needs to be done because even if only one is broken, you can bet that a few more are fatigued and aren't doing their job anyway.Hope that helps.

[Feryha]

Did you remove the head your self?

which shop did you go for machine the broken bolts?

mine broke 3 studs, I succesfully rmove 1 but the other 2 stiil there, and seems that I f@#k one of them

thanks for the help guys

[kik-ass]

Yes, removed it myself. Do a search on these forums, there are some good tips. I had four broken ones, and another one broke when the shop was removing them. Only the studs on each end broke indicating the warped manifold. When we put a straight edge across the manifold it had warped 2-3mm each end. If you try to remove the studs yourself with an EZ-out, make sure you don't break it off in the stud, as once you do that it makes the job a whole lot harder.

[camandcandice]

you can get easy out kits for $5 from super cheap auto

But be very very carefull when drilling the hole for the easy out or you might end up costing your self a fortune like i did!! By drilling into the main oil gallery

[Jetdat]

Originally posted by camandcandice

you can get easy out kits for $5 from super cheap auto

But be very very carefull when drilling the hole for the easy out or you might end up costing your self a fortune like i did!! By drilling into the main oil gallery

ouch!!! yeah care needs to be taken for this excercise..

[DJ_L3ThAL]

hmm, might wait till mine gets worse or if ive ever got it all off, cant see any point taking it all off unless there's an actual obvious problem

[kik-ass]

There was no obvious problem with mine, either. Only one was missing but another three were as good as broken and had no tension on the manifold. Once I took the manifold off, you could see black soot on the head where it had been leaking. Now that it is fixed, the car sounds different.

[Feryha]

I bought the EZ out and I succesfully remove 1 stud but I couldnt get the other two as I can't drill the at the centre so I f@#k o1 of them, the other one is very hard to drill as limited space of drilling (stud at No 1 Cyl), I am frustrated now.

How much do you think to take the car to the workshop to get head off and change the head gasket and machine the broken stud?

Nb: My exhaust manifold is perfectly straight doesnt warp at all, do I still have to machine it ?

Thanks a heap guys