Yeah, you might break some bolts if you are using 12x the designed torque. ]]> nissanman04 2008-05-09T08:47:13-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3635312#3635312 Too much torque and they are torque to yield bolts so they must be replaced after one use. OutToWinPAHC 2008-05-09T06:37:31-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3635245#3635245 ^^ yeah,I think you made some mistakes haha. you aren't in the right units. These bolts don't just break. I think you made some mistakes haha. you aren't in the right units. These bolts don't just break. ]]> S13xCrazy 2008-05-09T05:46:34-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3635218#3635218 yeah.. I torqued my arp's to like 59ft/lbs.... the FSM says 55-63ft/lbsyou were looking at 75 to 84 nM you were looking at 75 to 84 nM ]]> lrb_2000 2008-05-09T05:18:04-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3635146#3635146 You're not supposed to go past ~60 ft/lb for the head bolts....Alex Alex ]]> e1_griego 2008-05-09T02:25:22-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634886#3634886 The head bolts broke at 75 ft-lb. I just got a new torque wrench. I just checked and I confused in-lbs with ft-lbs. So, that is that. However, I just checked my injectors, and one was 25 ohms and another was 45 ohms. :-( Do I have to replace them or can I fix them TheKryptKeeper 2008-05-08T23:22:07-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634840#3634840 its a good idea to get new bolts, but you broke way too many to be just an accident. i think it was your torque wrench causing the breakage. personally after all the work i would get new bolts just for some insurance. live and learn right sebazztard 2008-05-08T23:05:16-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634834#3634834 it was 75 N/m not 75 ft/lbslook at the FSM picQuote, originally posted by h.240 I was having the same problem when I was tightening down my cam cap bolts. 25 in/lbs or something like that and I kept snapping them at 25 ft/lbs. look at the FSM pic

Quote, originally posted by h.240 raquo;

I was having the same problem when I was tightening down my cam cap bolts. 25 in/lbs or something like that and I kept snapping them at 25 ft/lbs. ]]> offroadbob 2008-05-08T23:03:14-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634826#3634826 I juat bought a new torque wrench after the head bolts broke. Nissan insists that the bolts do NOT stretch and are to be reused. TheKryptKeeper 2008-05-08T23:00:54-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634711#3634711 The aluminum head shouldn't break before the bolts do. It is a good idea to replace the head bolts since they are designed to stretch under tension, I actually just read that in a Popular Mechanics magazine an hour ago. Here is the tightening procedure for the head bolts as per the FSM if you don't already have it - I would also get your tourque wrench calibrated to make sure you are torquing to the correct specs.
I would also get your tourque wrench calibrated to make sure you are torquing to the correct specs. ]]> h.240 2008-05-08T22:21:57-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634676#3634676 Quote, originally posted by S13xCrazy thats a terrible situation.Are you sure your torque wrench is accurate Have you dropped it Are you using the right conversion (foot pounds, inch pounds, nM)very very very easy to mix up when not paying attention, we all do it. but this was the very first thing that came to mind (correct lbs). and no your bolts shouldnt break, they were designed for the torque! hope you get everything straightened out, sounds like a nightmare. Quote, originally posted by S13xCrazy raquo; thats a terrible situation.

Are you sure your torque wrench is accurate? Have you dropped it? Are you using the right conversion? (foot pounds, inch pounds, nM)

very very very easy to mix up when not paying attention, we all do it. but this was the very first thing that came to mind (correct lbs). and no your bolts shouldnt break, they were designed for the torque! hope you get everything straightened out, sounds like a nightmare. ]]> sebazztard 2008-05-08T22:12:03-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634675#3634675 you should replace the bolts. they are sort of a one time use sort of thing, because they stretch a little when you torque them. darens13 2008-05-08T22:11:43-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634655#3634655 thats a terrible situation.Are you sure your torque wrench is accurate Have you dropped it Are you using the right conversion (foot pounds, inch pounds, nM) thats a terrible situation.

Are you sure your torque wrench is accurate? Have you dropped it? Are you using the right conversion? (foot pounds, inch pounds, nM) ]]> S13xCrazy 2008-05-08T22:06:40-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634653#3634653 ARP that's all you need to know...go buy some wagzilla260rs 2008-05-08T22:06:13-08:00 http://forums.nicoclub.com/zerothread?id=336045;postid=3634637#3634637 So I'm changing my head on my ka24de. I tried to do it with my original head and when putting on my head bolts, 3 of them snapped when I was tightening to 75 ft-lbs. It ends up that that head was incorrectly checked and didn't hold pressure, so I got a new one and while checking my valve clearances, a camshaft bolt broke while going to 17 nm! What the hell Am I supposed to change all of my bolts when doing the head gasket Also won't the aluminum head break before the steel boltsKrypt Krypt ]]> TheKryptKeeper 2008-05-08T22:01:28-08:00