Thread: Broken Exhaust Manifold Stud

Do all the studs while the manifold is off, and use stainless steel replacements,

better still go bigger and get 10mm SS studs put in.

Thats fixes it!

Well I got the order wrong went with an easy out first. stud started to move then locked up and snapped the easy out.

Not sure why they are called easy outs. Not very easy. and ow in the litt bit of srew I have felt I ah the tip of a 2mm drill bit. Not a happy day.

Any tips here? I'll post a photo when I get back to the workshop.

Dave I'm a bit nervous to heat just a section of the head with the heat gun to 200 Deg. cant be good can it.

Originally Posted by Blknight.aus

if you have the manifold off mostly the leftover stud will come out with the edge of a chisel driving it in the direction of undo. If you are DIYing start by giving it plenty of freeze'n'release while its hot and following that up with lots of penetrating spray lube while you take your time pulling the manifold

IF i think I need to help one along, (time not being an issue and there's no need to run the extra risk of more invasive methods) I recover the coolant from the engine, heat the area with a hot air gun to about 200 degrees then drive it with the chisel,

next step is left hand drills

then rigid stud extractors

Then drill outs

then ezy outs

then a bit of a sit and a think.

How about slowly welding a nut onto the stud???? Tap let it cool tap a gain cool tap again cool sort of thing

you can sometimes encourage a broken easy out out with lots of lube and a normal impact drill.

if you have a really good dremel you can drill down beside the easy out and give it some wiggle room. you might also be able to slit the easy out with a fine cutting wheel and then screw it or die grind the easy out out.

If you have an EDM or arc etecher you can burn the eazy out out along with the leftover of the stud, Ironically if you have one of those you woudlnt have needed this thread



in reality stop now and call a thread doctor.bbbbbbbbbbbbbb