exhaust studs broke - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

blue109 · 12-17-2005, 03:52 PM

so, has anyone had any luck with a easy-out on a cyl. head(ex mani side) i have 3 broke and im trying to avoid pulling the head. there is plenty of room, ive just heard of the easy-out breaking and making it worse. TIA

aznpoopy · 12-17-2005, 04:02 PM

i tried using an easy-out on a broken coolant bleeder screw on the upper intake plenum... after a good amount of cursing and more then one broken easey out i ended up using another intake plenum i had.

you might have more luck. the exhaust studs are alot larger then the tiny ass coolant bleeder screw.

infinitexsound · 12-17-2005, 04:20 PM

easy out works like half the time... usually when the easy out breaks inside the bolt then ur definetly owned... if the studs are still external and visible and u can get a vise grip on it... do that and smack it with a hammer.. that would definely fix it... other then that youd have to drill it out and heli-coil it..

pr240sx · 12-17-2005, 10:40 PM

use a good metal drill bit
Use good easyouts for the correct size (I used craftsman 52152 size m10-3/8)
Use a steady hand and a good drill
Use the easy outs with easy and slowly.
Heat and some PB Blast or WD 40 will help too!!
Dont break the bit nor the easyout.
A variable/reversible drill will work great.
Drill a small hole on the stud with the drill, go slowly and be sure to be in the center!!. Studs are steel, the head is aluminum!!.
Then use the easyout SLOWLY and work your way until it grab the easyout.
Hints!
Have someone spraying some pen. oil while you drill. This will cool the bit and help while heating the stud.
If you need to use the torch, beware not to heat the head too much or you can warp it. Is heating, not melting the stud!!.

Good luck

blue109 · 12-18-2005, 02:20 PM

thanks. im hoping they wont be frozen in there. i dont know why they broke in the first place. i barely but any torque on them, and they just snapped off. the broken ends didnt have any rust on them to indicate they had been cracked. i had to snap all the DP/O2 ext. bolts to get them off to. i love old cars.

**mrmephistopheles** · 12-18-2005, 02:51 PM

done quite a few exh side studs with easy out.
no problem.. lots of WD40.

12-17-2005, 03:52 PM	#1
blue109 Zilvia Member Join Date: Jun 2004 Location: tucson AZ Age: 47 Posts: 165 Trader Rating: (0) Feedback Score: 0 reviews	exhaust studs broke so, has anyone had any luck with a easy-out on a cyl. head(ex mani side) i have 3 broke and im trying to avoid pulling the head. there is plenty of room, ive just heard of the easy-out breaking and making it worse. TIA __________________ The fire and ice combination adjourns fresh I return with the last living specimen caress when the earth is vacated and the populous cleared ill be the last starfighter sipping a goblet of my tears

12-17-2005, 04:20 PM	#3
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 42 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	easy out works like half the time... usually when the easy out breaks inside the bolt then ur definetly owned... if the studs are still external and visible and u can get a vise grip on it... do that and smack it with a hammer.. that would definely fix it... other then that youd have to drill it out and heli-coil it.. __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

12-18-2005, 02:20 PM	#5
blue109 Zilvia Member Join Date: Jun 2004 Location: tucson AZ Age: 47 Posts: 165 Trader Rating: (0) Feedback Score: 0 reviews	thanks. im hoping they wont be frozen in there. i dont know why they broke in the first place. i barely but any torque on them, and they just snapped off. the broken ends didnt have any rust on them to indicate they had been cracked. i had to snap all the DP/O2 ext. bolts to get them off to. i love old cars. __________________ The fire and ice combination adjourns fresh I return with the last living specimen caress when the earth is vacated and the populous cleared ill be the last starfighter sipping a goblet of my tears

12-17-2005, 04:02 PM	#2
aznpoopy Post Whore! Join Date: Mar 2003 Location: New Jersey Age: 44 Posts: 5,013 Trader Rating: (1) Feedback Score: 1 reviews	i tried using an easy-out on a broken coolant bleeder screw on the upper intake plenum... after a good amount of cursing and more then one broken easey out i ended up using another intake plenum i had. you might have more luck. the exhaust studs are alot larger then the tiny ass coolant bleeder screw.

12-17-2005, 10:40 PM	#4
pr240sx Zilvia Addict Join Date: Jan 2002 Posts: 627 Trader Rating: (0) Feedback Score: 0 reviews	use a good metal drill bit Use good easyouts for the correct size (I used craftsman 52152 size m10-3/8) Use a steady hand and a good drill Use the easy outs with easy and slowly. Heat and some PB Blast or WD 40 will help too!! Dont break the bit nor the easyout. A variable/reversible drill will work great. Drill a small hole on the stud with the drill, go slowly and be sure to be in the center!!. Studs are steel, the head is aluminum!!. Then use the easyout SLOWLY and work your way until it grab the easyout. Hints! Have someone spraying some pen. oil while you drill. This will cool the bit and help while heating the stud. If you need to use the torch, beware not to heat the head too much or you can warp it. Is heating, not melting the stud!!. Good luck