What's up guys, i am in the process of installing my plenum spacer and snapped 3 bolts. I know there a various posts on this and as I was searching i couldn't find any.

Does anyone know how to remove bolts that have been snapped? I was using a torque wrench to spec as motordyne's instructions labeled torque to 30 in/lb - 60 in/lb - 100 in/lb in order. 3 bolts snapped at 30 in/lb i didn't even tighten to 60 yet. btw this is in the lower plenum area not the bolts on the perimeter of the upper plenum cover.

I know this is probably the wrong forum but I know more people look here first and I need quick replies.

thanks in advance

 

Where you reading ft/Lbs instead of in/lbs?

Sears and other hardware stores sell tools that can remove snapped bolts. They're usually known as "easy-outs" or other similar names. They are designed to grab the snapped bolt and back it out. There are different designs dependiing on the type of bolt you are attempting to extract.

 

Go to Sears, and buy a snapped bolt pulling kit. It will come with a small bit, that you drill into the snapped bolt, then turn this other bolt puller into it that will dig into the hole and catch, then you back it out. I TQ'd the $hit out of my lower plenum bolts( stock) and they didnt break Im surprised yours did. Were they stock bolts or Motordyne bolts? Good luck to you....

 

Thanks for the theads up guys. I snapped the stoclk bolts , unfortunately motordyne didn't provide replacements for the lower plenum portion. I will go to sears. I just sent my girl to get me a torque wrench the measured in in/lb too. ****

 

yeah.. the in/lbs ft/lbs has been an issue these last couple of weeks on this board :-/

http://performancenissanparts.com/ca...1135_1136_1182

 

Jason thank you for sneding me that link. I will definately get to it. I am just pissed because i specifically bought an in/lb torque wrench brand spanking new. oh well.

I just wanted to send a big thank you to motordyne. Tony was kind enough to stay on the phone with me for a while and trouble shoot.

The car works though and pulls a little harder.

 

30 in/lbs is 2.5 ft/lbs. There's a huge difference between 2.5 and 30 ft/lbs. Torque wrenches are a big source of confusion for a lot of people. I once had to save my friend's torque wrench from someone who was going to use it as a breaker bar for his lug nuts.

BTW, does anyone know if Sears or any other national chain will calibrate a torque wrench?

 

Good question on calibrating tourque wrenches! Thats important!

Dont know where to do it though... :-/


I also think alot of people dont use them properly... Like, tightening down lug nuts by hand really tight and checking them with the torque wrench but they are already tighter then they should be... :-/

 

can this wrench be used to remove top plenum bolts?

http://www.sears.com/sr/javasr/produ...00&tab=des#tab

 

You can't REMOVE them with that one, but you can TIGHTEN them down with that one using the 30-60-100 in/lb steps.


TLHASTZ - Your problem may have been because you didn't know exactly what to expect from your torque wrench when it reached the right torque. If you used a micrometer style that has the twisting handle to set the torque, those can be hard to use sometimes. I've seen new guys turn right past the "break" point in the wrench and over-torque bolts. it's always a good idea to try out a new wrench on a lug nut or something and set your torque really low so you can see how your wrench feels once it's reached the torque setting. Some wrenches only have a very slight "break".

 

+1

A G35 driver recently did just that. He bought a brand new inch-pound wrench and turned the bolt past the torq wrench click point. He wasn't familiar with the click point and went right past it.

Everyone please be very careful when tightening bolts into Aluminum. Especially when tightening small bolts like the ones used in the plenum assembly. Aluminum is soft and easy to strip. Even 10.9 M6 bolts can snap above 150+ in-lb torque.

There is an easy fix for for broken or stripped threads, but if you feel uncomfortable doing it, have a friend or mechanic help. Or you call me with any questions on how to do it. I'll help anyone through it.

Tony

 

Thanks again for your help on the phone this weekend Tony. Great customer service

-Roy

 

Thanks for the tip Kaisersoze I will keep that in mind for the next project that requires a torque wrench.

 

if part of the bolt is still sticking out you can use a dremmel to cut a groove in the top and then remove it with a screwdriver/drill.

 

Go to Sears and get the Drill/out kit. It's like 30 bucks. Same thing happened to me when I put my plenum on. Luckily I got them out with the drill/out. After you do that. Go get you sum grade 8 bolts and replace them. Which are a lot stronger. After I did that. Everything turned out fine. Good luck. I know what ur goin thru. Gave me a headache.

 

Just a note:
Grade 8 is sufficent when properly installed, but 10.9's are better due to their heat treatment processing.

Another FYI when it comes to bolts:
For any bolts you may have, do a drop test to test the bolts integrity. Hold the bolt about 12 inches above a hard surface (like concrete) and while its pointing down, drop the bolt on its head.

A good quality bolt will have a bright "ring" to it when it hits the ground. If a bolt has any significant defects in it like porosity, cracks or low quality, it will make a dead ring or thump.

If you are replacing the stock bolts in your lower plenum, check all of them like this. If they all have the same charecteristic "ring" but one of them sounds significantly different from the others or makes a dull thump, throw it out and replace it immediatly!

Just say no to dead ringers!

 

I broke a bolt while installing a grounding kit. Since the bolt is relatively inaccessible and sheared with nothing above the surface I can't use a bolt extractor without disassembling other things.

So I was wondering, is it possible to use jb weld/epoxy/superglue/etc to secure the bolt head onto the bolt and then remove the bolt using a wrench?

 

no, that won't work.....you will have to dissasemble

on a side note, if you have a hard time drilling into a hardened bolt, get the titanium bit the same size...

 

you know the bolt doesn't have to be above the surface, you drill into the broken shaft, that put the easy out in the hole you drilled, then turn the easy out ...as long as you are turing the correct way the bolt will back out...

 

Sears will calibrate the torque wrenches they sell. Don't know about other brands.