Broken stud

sharky914 · 03-10-2000, 10:29 AM

AAAAAHHHH!!

I have a 1.7 and one of the studs that attach the exhaust manifolds to the head
of the engine broke. The problem is that half of a stud is in the head. Have any of you had this problem before? how did you solve it?

Any help will be apreciated. I can't test the car cause it's to cold where I live. I don't know if it's a problem if I stay with the remainder studs and ignore the broken one!

Thanks in advance

John Rogers · 03-10-2000, 10:43 AM

Well you can't let it go since the exhaust gases will burn a hole in the gasket flange area. I had two break recently and after trying to remove them and not being able to I had our shop do it. If part of the stud is there you can try soaking the area really good with penetrant oil for a few days, buy a stud remover that screws over the remaining stud and then use it to try to back out the broken stud. Mine broke again even with the head and it is really hard to drill the stud for an extractor, you have to have an old manifold (or something)as a guide so the drill will not move off center. Then use the ez-out to unscrew the stud. All this while laying on your back with oil and metal particles falling in your face!!!! That is why I had a shop do it. Finally I would have all the studs at least on that side replaced and if you can afford it, do them all. Good luck.

[This message has been edited by john rogers (edited 03-10-2000).]

iustasail · iustasail's Garage

If the existing stud is solid and not to much exhaust leaks out you can let it go for a while before it will kill the head. If the leak is excessive then it will eventually damage the head, but its not instantaneously.

It is very difficult to repair in the car, but it can be done as the above post describes.

roadtrp204 · roadtrp204's Garage

I had broken all four studs on one of the heads on my 2L-(used the wrong exhaust nuts). The head was off the car, so I took it to a machine shop and they welded nuts to the broken remainder of the studs. I thought it was a great idea, but they all broke again further down. Ended up having the machine shop drill and heli-coil. If you try to drill, start really small and work your way up. It made a big mess of the head when I tried to drill my self and the bit wandered off the stud and into the head. The cost was the same to have that one fixed as it was the other three. Good Luck!
Chris

JP Noonan · 03-11-2000, 02:42 PM

If you have a cheap set (i.e. the following plan will most likely ruin the socket) of sockets find one that almost fits over the stud. Pound it on with a hammer and then see if it will budge with a rachet. For penitrating oil "PB Blaster" the the best, WD-40 is about useless. Spray it then pound, the pounding can help sometimes.

P.S. 12 point sockets "bite" a little better.

[This message has been edited by JP Noonan (edited 03-11-2000).]