Jump to content
SAU Community

Recommended Posts

Hey guys. I've broken the stud that holds my timing belt tensioner in place and haven't been able to budge it. I've drilled through the centre of it and tried using an easy out but it won't move one bit. I'm going to try hitting it with some of that freezing spray tomorrow to see if that helps crack it, or maybe heat the block around it with once of those pencil blow torches but i'm not sure how successful this will be.

I've thought about welding something in there but there is very little surface area to get a decent weld. It doesn't help that the stud has snapped just below flush with the block either.

So has anyone got any ideas or suggestions that might help me get this stud out?

Cheers

Simon.

Link to comment
https://www.sau.com.au/forums/topic/294006-another-broken-stud-thread/
Share on other sites

your in Dubbo so no thread doctor or spark erosion I'm guessing?

Try slowly increasing your drill size and using a dremel with a tungsten bit on it. Once you have it thinned right out, use a tap and re tap the hole [lots of swearing, beer and patience].

You need to get it thin so you can follow the same thread in when you re tap.

Yeah no thread doctor or anyone out here unfortunately! I miss canberra sometimes :(

With the dremel idea... won't that pose a significant risk of damaging the thread in the block? Something i'd rather avoid if possible. But i guess as a last resort I can give it a try.

I got a suggestion in a pm to try a proper stud remover instead of an ezi out so i might give that a crack if i can find one in my lunch break.

Yeah no thread doctor or anyone out here unfortunately! I miss canberra sometimes :D

With the dremel idea... won't that pose a significant risk of damaging the thread in the block? Something i'd rather avoid if possible. But i guess as a last resort I can give it a try.

I got a suggestion in a pm to try a proper stud remover instead of an ezi out so i might give that a crack if i can find one in my lunch break.

If its really stuck, be very careful not to snap an ezi out or hammer in stud remover off in your drilled hole cos then your up the creek........no drill or dremel will touch them [they will slowly and using heaps of them, but you'll end up gouging the thread and parent material because it is way softer than the ezi out metal].

I would use a bit of heat around the bolt hole. Oxy torch on low pressure would get better heat into it. I dont think a pencil blow torch will do the job but see how you go.

Otherwise from that do what the guy said above and step up your drill sizes and then re tap it. Either should work.

Find a nut suitable for a slightly smaller bolt than the broken bolt, weld it to the broken bolt (through the hole in the nut).

When its cold, undo with a socket.

I have never had method fail.

I thought he couldn't do this method, not enough exposed stud left, but I agree is works very good if you can do it.

only way you are going to get that out is what trident said and drill it out slowly and use a dremel to finish it off them tap it back out, doesnt matter if you slightly touch the thread with the dremel as there will be enough meat for the new bolt. a ezy out will bight into the original thread and you will snap it. heating it up is risky as it can harden the leftover bolt and when it does'nt work, will be a prick to drill. being a mechanical fitter of some 21 years i have seen my fair share of snapped bolts and that is the best way to do it.

Try a centre punch on the outer edge of the stud and rotate it. Don't use heat as you can damage/distort the surface of the block and it has to remain perfectly level. Also, don't use an easy out that is too big for the hole you have drilled as it will actually push the threads out against the block threads tighter.

Try the welding method mentioned above first. If it's bottomed out though you won't get the thing out, it'll tear the weld.

Just dont snap off an easy out in there or you are stuck with the erosion method.

If that fails then drill it out and helicoil it.

Edited by badhairdave

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Well, I can recommend the partial AV system translation CD I ordered from Car Audio Workshop in NZ. Whilst it didn't address the date issue, it has conveniently translated on-screen menu items into English, and now allows the GPS-received time to be offset in hours rather than minutes, so I can display Eastern Australian time accurately ( and bump it by another hour when daylight savings starts ).
    • Yuh, if it's 45°C outside, my car is driving in it.
    • I'd be curious to hear more. Otherwise, have you driven a modern x-trail? I wonder how it compares. Here in Australia they are/were popular for rentals and fleet vehicles. I have been in some and my impression was they are bad. But, this may have been very different in the 2000s at a good trim level. Twenty years is plenty of time to make the model worse. I do very much agree with the 2 silver cars in the garage approach. But, not driving because it's too hot would not leave a lot of time in the year for many Australians. I don't think you need to worry too much unless the car has actual issues with overheating. 
    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
    • Thanks for that, hadn’t used my brain enough to think about that. 
×
×
  • Create New...