Any ideas to free up the bolts without drilling them out or other brutal tactics. I’ll either return it to RetroModern and lose 20% restocking fee or maybe try to sell it here. I’m not sure if I can get this installed. I don’t want to further bugger up the bolt and I just cannot get it to release (I read a thread from 2005 in which another owner had the same issue and basically pounded a T-40 Torx bit in and then got the bolts to release, but no such luck with this. When I wanted to remove the bolts of the striker (which are actually T-35 Torx button head bolts), not matter what I do and having obtained the proper bit from Harbor Freight (as no one else sells it), I cannot get the bolt to budge at all. Anyway, today, I tightened up my front hard top latches (the procedure where you cut the long nut of the latch by ~ 5 mm) and this seems to have worked well. So I'm wondering if the 2ZZ is the appropriate bolt, or if I should use the Vauxhall bolt which appears to be a superior alternative (more thread contact with the hub and a larger head gives a wider clamping area).Yes, I would assume our tops are not high theft items (as are Miata tops in some cities), but I purchased a RetroModern polished HT lock (you remove the 2 large Torx bolts from the striker and install the billet retainer and then slide the latch lock over the retainer, then it’s locked in place with a special key). The flange diameter of the stock flywheel bolts is about 18.55mm and it looks like it could accommodate at least 22mm diameter (albeit I'm less sure on this measurement). Looking at my flywheel its about 13ish mm thick, giving a total thread depth until it bottoms out of about 29mm. The other big difference is that the wrench size on the 2ZZ bolts are 5/8", whereas the Vauxhall bolts have a wrench size of 3/4". The 2ZZ are unthreaded for the first 4.5mm, whereas the Vauxhall bolts are unthreaded for the first 7.62mm. They both have the same M10x1.25 thread The 2ZZ bolts have a length of 22.22mm, whereas the Vauxhall bolts are about 25mm long. I also see a 209-2801 intended for Vauxhalls. Now, when I go to ARP's website I see a bolt set 103-2802 intended for the 2ZZ-GE motor. My intention by the way, was to install them dry, then remove them individually, put Loctite on them and re-install - because Loctite has a 10 minute setup time, and I didn't think i could get all 8 bolts in and properly torqued in under 10 minutes, and I wanted the flywheel mostly properly clamped with 7 of 8 bolts while installing the others so I'm not torquing down the first bolt with the flywheel not properly located by the other bolts. I was not aware, when I wrote this post that the bolts are torque to yield and deformed and so the instructions may not work a second time. Torque is a crappy way to determine if a bolt is tight, since what you really care about is tension, unfortunately, most people (including me) have no way to measure the tension, so we measure the torque and make do - which is why I was TRYING to follow the directions. I see no reason to lecture me like an idiot. Looks like I can get an ARP set for $42, or a factory set for about $60. So, I suspect my problem may be that the 36+90 only works on new bolts, and otherwise if I was to reuse them, I probably want blue Loctite at 60 ft lbs and call it a day. They all used Loctite, and no one actually said they had had a failure when doing that. That said, although I've read a lot of doom and gloom predictions, numerous people have said they have re-used flywheel bolts without a problem. Which is why I can't get another 90 degrees out of it. I suspect the fact that its a 36 ft lbs + 90 degrees means it is TTY, and they have yielded. Now, that said, I've read both that they are TTY (and hence not reusable) and that they are reusable. There's no way it would survive a full 90 degree turn without serious deformation, if it survived. I can tell you that to get it to turn 20-30 degrees probably requires 150 foot pounds. The bolt are dry.Īccording to this website: Typical torque value of a Class 10.9 M10 bolt is 55 ft lbs. I'm using a Harbor Freight digital torque adapter device, which is probably more accurate than most torque wrenches.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |