The left handed drill bit usually work pretty good. It is turning the same way the the bolt turn and a lot of the time it will back the bolt right on out. > > But I need to know a little more :) > What is a left hand drill bit set?? > I suppose the spiral on the dril goes counterclock wise then, but what are > the benefits then? > > Ofcourse pulling the head is the safest way, but I don't like to pull the > head of an otherwise sound engine.. > > BTW, what is an E-Z ??? > > Yes, the job is making me a little nervous but if I screw it up I can always > pull the head and bring it to the machine shop for extracting the studs. > > But I think I should try it myself, don't you think? > > Thanks, > > Robert > ----- Original Message ----- > From: "Benjamin Breyer" <bmb2102@xxxxxxxxxxxx> > To: <mailing-list@xxxxxxxxxxxxxxxx> > Sent: Thursday, May 10, 2007 5:25 PM > Subject: Re: IML: Problem with exhaust manifold studs... > > > > > If you reinstall the manifold with four bolts, use two gaskets. > > Pulling the head is the safest way to deal with this problem. If the > job makes you nervous, let a machine shop extract the studs. It > isn't that difficult, however. Use a *good* drill bit set, starting > small, and gradually step up the bit size until little more than the > stud threads remain. Then use an E-Z out, need nose pliers, or > something else. If you measure the depth of the stud hole, you > needn't fear drilling too deep. You will probably feel the bit > bottom out before you begin drilling into the head anyway. I've > never used them, but a left-hand drill bit set might be a good way > to go. > > > Quoting Rob van der Es <r.vdes@xxxxxxxxxxxxxxx>: > > > Hi Paul and the rest of the IML gang, > > > > I need some expert advise with regard to the exhaust manifold > > studs of my > > 1960 Imperial. > > For 10 days ago I broke the exhaust manifold flange of the left > > manifold... > > I noticed a a roadbump too late and was hitting it with too much > > speed, > > since the whole exhaust system is pretty rigid the impact was > > given > > directly to the cast iron manifold.. > > > > With the restult that the flange has broken.. > > I found myself a reputable cast iron welder that has done the job > > many > > times before so with a little luck I will have my manifold back > > early next > > week. > > > > But now for the real problem: when taking the manifold off two > > studs were > > broken.... > > Despite of several overnight soaking sessions with penetrating > > oil! > > > > The number two stud (counting from the radiator) and the last > > stud are > > broken and almost flush with the head. > > Ofcourse I can try if the 4 remaining studs and bolts will secure > > the > > manifold but I simply don't like the idea. > > > > On the otherhand, I either don't like the idea of taking the head > > off. > > And at least the last stud is very difficult (or not..) > > accessible with > > the head in place. > > So maybe I should aim for the second stud to come out. > > > > Both studs are almost flushed with the head surface (slightly > > below > > actually). > > Is there a safe way to get them out? > > Or should I try to secure the manifold with the 4 remaining nuts > > and see > > what happens? > > > > If this doesn't work out, how do I remove those broken studs > > then? > > And where can I buy new studs for my engine? > > > > Ofcourse I can try to drill out the number two studs since I > > think I can > > access this one from the left front wheel area (with the left > > front wheel > > removed ofcourse). > > > > But what if I screw up and the studs doesn't come out, since > > these studs > > are in the cooling fluid area it is important that I don't cause > > any > > leakage. > > If I break a drill for e.g. while it is just through the center > > of the > > stud (if I am lucky..) and the broken part gets stuck, cooling > > fluid will > > escape then!! > > > > So should I go for the 4 studs fasting method first? > > > > Any words of whisdom?? > > > > Thanks, > > > > Robert > > 1960 Imperial Crown > > > > > > > > > > ----------------- http://www.imperialclub.com ----------------- > > This message was sent to you by the Imperial Mailing List. Please > > reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be > > shared with everyone. Private messages (and attachments) for the > > Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx > > To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > > > > > > > > > ----------------- http://www.imperialclub.com ----------------- > This message was sent to you by the Imperial Mailing List. Please > reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be > shared with everyone. Private messages (and attachments) for the > Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx > To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > > > > > ----------------- http://www.imperialclub.com ----------------- > This message was sent to you by the Imperial Mailing List. Please > reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be > shared with everyone. Private messages (and attachments) for the > Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx > To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm