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BMW 3-Series (E90 E92) Forum
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HELP. Please. Stud stuck on engine head. during turbo install
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11-20-2012, 05:57 PM | #1 |
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Im having major issues with this stud the Star part broke off and im now using a Visegrip to try break it lose its not going in or out
![]() ![]() ![]() Page 2 for the heart warming news Last edited by sammy_0559; 11-26-2012 at 03:27 PM.. |
11-20-2012, 06:11 PM | #2 |
nsomneeak
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Yikes, you might try something like this; autozone might loan them out.
http://www.sears.com/shc/s/p_10153_12605_00952166000P
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11-20-2012, 06:12 PM | #3 |
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I'm no expert, but have you tried heating it ? Maybe someone else will chime in, but you may have to drill and re-tap.
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11-20-2012, 06:28 PM | #5 |
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Are you taking your turbos off? That happened to my evo had to drill and tap
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11-20-2012, 06:55 PM | #7 | |
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If you still have good thread left. Try putting two nuts on the stud. You then tighten the two nuts against each other. Then use the locked nuts to loosen the stud with a normal box end wrench. Hope that helps. |
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11-20-2012, 07:02 PM | #8 |
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Heat it then hit it with some canned air to shock cool it. If that doesn't work try some wax from a cheap candle while it's hot. Heat is likely the answer, anyway... time to get out the torch
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11-20-2012, 08:36 PM | #11 |
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11-20-2012, 08:50 PM | #12 |
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Propane won't burn hot enough to melt the aluminum. Warm it up, with butane or propane, not the stud, but the area around the stud on the head. You want that to expand.
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11-21-2012, 12:46 AM | #13 |
Macgyver
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Try a rag over the threads before doing the vise grips. You could also flatten each side with a cutoff tool/ grinder. Then use your vise grips again.
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11-21-2012, 12:54 AM | #14 |
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Common on turbo studs and bolts we see because of the heat. Not only on these cars but many others. If you can get in there take a small hammer and give some nice raps right on the head solid, this shocking really helps in breaking things lose. Make sure you get a nice solid hit directly on the end so you dont snap it off. Then and this is key, you are going to have to work it back and forth. if you get a tiny turn out, take whatever you are using to turn it back the other way, use this method and you can get it turn out a little at a time where if you just tried to back it out, its most likely going to break if it is really seized. I am a firm believer any bolt or stud can be removed without breaking if you give it the proper time and and tools. I do also agree with the propane torch on the head itself not the stud, on turbine housings we use oxy / acy torches as they can take the heat but the aluminum cant. Get it nice and hot, whack it nice and straight and while the its still hot trying turning it out and see if it moves, repeat until you get it out. Good luck
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11-21-2012, 06:41 AM | #15 |
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A small pipe wrench can work better than vice grips for getting a grip on a stud that is being difficult. (A lot of my wrenching experience is on cars far older than the ones we are discussing here, so dealing with corrosion and stuck fasteners is a way of life.)
Also, not to restart a flame war that's been going on for decades, but WD-40 is not a penetrating oil. Use a real penetrating oil like Kroil, Liquid Wrench, or PB Blaster. Or if ou have some acetone laying around mix it 50/50 with ATF and put it in a hand oiler and use that, it works surprisingly well. |
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11-21-2012, 08:37 AM | #16 | |
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Thank you so much for your input ![]() I was able to get two nuts on it last night but didn't attempt to turn it because i need to apply heat so ill do it this afternoon. |
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11-21-2012, 11:33 AM | #18 |
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Just FYI, might be worth a shot...acetone mixed 50/50 with Power Steering Fluid (PSF, not ATF).
http://www.sterkel.com/papers/vintag...ating_Oils.pdf |
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11-21-2012, 12:34 PM | #20 | |
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![]() Heating didnt work, also banged with a hammer hard and still wont budge. when i removed the oil lines on the front turbo it was already pre marked with sharpy. "F" im guessing someone else f**ked it up ![]() ANy other ideas |
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11-21-2012, 03:13 PM | #21 |
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heat it with map gas for a good amount of time, 15 mins. after letting it soak in pb blasster for 45 mins
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11-21-2012, 04:19 PM | #22 |
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stud removal tool always saved me. I snapped one on my b7 audi doing the timing belt, back it right out in seconds.
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