Just My Luck!

[jcrome04]

So of course Friday morning, I get my car jacked up evenly for some room to do a differential fluid change... forgot I don't have a 10mm hex socket..... So I had to wait until I was done with my job for that day. A few hours later My buddy picked up a TBG for her car so we attempted to remove the throttle body and clean it..... BIG MISTAKE. Anyone who wants to clean the throttle body on a 96 Mazda MX-6 V6. DONT TRY IT. Pain in the !Removed!. Took 45min to get it apart to the point where we knew it was for sure not coming off. Then it took another 45min to put it back together since everything is so crammed into the engine bay.

So now I'm excited I can finally get to my differential now that I'm done with that and have myself a 10mm hex socket...jack the car up level again, get my drip pan, the synthetic fluid and the pump ready, get my ratchet, go to take the filler plug out.............the just strips right out...damn rust.

So now I need a new filler plug and I figure a drain plug as well since they both look like they're in the same rusted condition......

So my Friday was a HUGE waste of life. Anyone have any idea of how much these plugs cost at the dealer???

And how the hell do I get out a stripped bolt......maybe I'll just have the dealership do it and give them my synthetic oil to put in so I don't have to deal with it....

:cries: :cries: :cries:

[dcfish]

So of course Friday morning, I get my car jacked up evenly for some room to do a differential fluid change... forgot I don't have a 10mm hex socket..... So I had to wait until I was done with my job for that day. A few hours later My buddy picked up a TBG for her car so we attempted to remove the throttle body and clean it..... BIG MISTAKE. Anyone who wants to clean the throttle body on a 96 Mazda MX-6 V6. DONT TRY IT. Pain in the !Removed!. Took 45min to get it apart to the point where we knew it was for sure not coming off. Then it took another 45min to put it back together since everything is so crammed into the engine bay.

So now I'm excited I can finally get to my differential now that I'm done with that and have myself a 10mm hex socket...jack the car up level again, get my drip pan, the synthetic fluid and the pump ready, get my ratchet, go to take the filler plug out.............the just strips right out...damn rust.

So now I need a new filler plug and I figure a drain plug as well since they both look like they're in the same rusted condition......

So my Friday was a HUGE waste of life. Anyone have any idea of how much these plugs cost at the dealer???

And how the hell do I get out a stripped bolt......maybe I'll just have the dealership do it and give them my synthetic oil to put in so I don't have to deal with it....

:cries::cries::cries:

Does the filler plug just keep turning? Try tapping the allen socket in with a hammer, That drain plug is deeper than it appears, I had to tap mine in on the GS, At firat I thought I had the wrong size allen socket .

[python]

So of course Friday morning, I get my car jacked up evenly for some room to do a differential fluid change... forgot I don't have a 10mm hex socket..... So I had to wait until I was done with my job for that day. A few hours later My buddy picked up a TBG for her car so we attempted to remove the throttle body and clean it..... BIG MISTAKE. Anyone who wants to clean the throttle body on a 96 Mazda MX-6 V6. DONT TRY IT. Pain in the !Removed!. Took 45min to get it apart to the point where we knew it was for sure not coming off. Then it took another 45min to put it back together since everything is so crammed into the engine bay.

So now I'm excited I can finally get to my differential now that I'm done with that and have myself a 10mm hex socket...jack the car up level again, get my drip pan, the synthetic fluid and the pump ready, get my ratchet, go to take the filler plug out.............the just strips right out...damn rust.

So now I need a new filler plug and I figure a drain plug as well since they both look like they're in the same rusted condition......

So my Friday was a HUGE waste of life. Anyone have any idea of how much these plugs cost at the dealer???

And how the hell do I get out a stripped bolt......maybe I'll just have the dealership do it and give them my synthetic oil to put in so I don't have to deal with it....

:cries::cries::cries:

Does the filler plug just keep turning?

may require u to drill it out

[Bali26]

I learned the hard way to always spray with WD40 first.

You may try tapping with a chisle. Or may have to make a groove with a dremel to the shape of your tool.

[jcrome04]

I did use WD40, and let it soak for a while too, and re-applied because I went through the same fiasco with my old 91 LS400. Maybe a poor design, on the material of the plug, on Lexus' behalf... Considering it IS underneath the car in ALL conditions ALL the time....

I did tap the bit in with a hammer too. It is totally stripped the entire bolt was orange with rust. I'm just going to have the dealer do it. :(

Oh well though I've got better things to be doing than chiseling out stripped bolts! haha

[dcfish]

I did use WD40, and let it soak for a while too, and re-applied because I went through the same fiasco with my old 91 LS400. Maybe a poor design, on the material of the plug, on Lexus' behalf... Considering it IS underneath the car in ALL conditions ALL the time....

I did tap the bit in with a hammer too. It is totally stripped the entire bolt was orange with rust. I'm just going to have the dealer do it. :(

Oh well though I've got better things to be doing than chiseling out stripped bolts! haha

Have you tried looking for a large EZ-Out?

Extracting Broken Bolts and Studs

OOPS!

You suddenly find yourself with a wrench in one hand with part of the bolt or stud you were trying to extract, and the rest of it still in the manifold/head/block/suspension bit? Contratulations - you're about to have an adventure.

I've been there. After you've worked on old cars for long enough, it's inevitable. The most recent occasion was on my TR4A, where someone had used a piece of threaded carbon steel rod to replace an exhaust manifold stud. You can get the remains of the stud out without removing the head.

You will need:

patience

dremel tool with small grinder bit (carbide is best)

patience

heat wrench (propane, MAPP or oxy-acetelene torch)

patience

reversible drill

patience

collection of ez-outs and left handed drill bits to match, plus drill stops

patience

a drilling template

patience

sharp punch and hammer

patience

penetrating oil (I think Kroil is best, many like PB Blaster)

patience

a properly sized tap

patience

a little luck

A scribe and a small round file may help. You might want some extra patience, too. If you get frustrated in the middle, take a break and come back to it the next day.

Extra credit trick for those with the appropriate tools and skills: if there's any of the piece sticking above the surface, try welding a nut, one size smaller than the threaded portion, to the broken stub. Weld the inside. The heat from welding may break the corrosion bond, and the nut gives you something to grab and turn. Be careful.

The starting trick is to get a hole drilled into the center of the stud. This is the point of the drill template - I made mine by copying the holes in a manifold gasket. Make the hole you're going to drill just larger than your starting drill bit size - I usually start at 1/8 and work up, but it will depend on what left handed bits you can find. You can make the template out of plywood; aluminum plate is better. You want adequate thickness to make sure that the drill bit is at an exact right angle to the manifold face. If the item is broken off significantly above or below the surface, you may be able to buy/make a bushing that surrounds the stub (or fits the hole) and use the ID of the bushing as the starting drill size.

Drill. Use the drill stops! You don't want to drill deeper than the broken piece. Make a good center punch to try to keep the bit from wandering (especially if you don't have a drill template). Chances are that you won't get the hole dead center, because gaskets aren't made perfectly; do the best you can. Go up in size until you are in danger of cutting into the threads in the head; inspect often with a mirror and flashlight (tip: point the flashlight into the mirror).

If you're very lucky, the heat and vibration of drilling will break the bond. This is why you want left-handed bits - if this works, you'll pull the piece out, rather than driving it further in.

Use the EZY out. There are two sorts - straight fluted and twist fluted. I prefer the straight ones, because all the force is used to turn the broken stud, rather than twisting the EZout in farther. But the twist ones are more amenable to weird hole sizes. Chances are that you won't get anywhere with the EZ out, but try it anyway. Don't break it off, whatver you do.

Heat the area with the heat wrench, spray on some Kroil, PB Blaster or WD-40, and wait. Repeat several times. This might help, it might not. Try the EZout again. Repeat until you're frustrated and ready to go on to the next step, or, if you're terribly lucky, the blasted thing comes out. (It may take several days of this cycle to succeed. If you're not in a hurry, this is the safest way. The hotter the torch the better - try to get the part red hot.)

There is a new generation of tools that combine left handed drill bit and ezout and even claim to center themselves. They're very expensive, so I haven't tried them yet. They just might make this job a little easier.

I will usually try a small impact wrench at this point: find an 8-point socket that fits over the square end of the ezout and blast away. This sometimes works. Don't be surprised if it doesn't. And, again, try not to break the ezout.

Consult a tap drill chart. Determine the next 1/64" smaller than the tap drill for the broken piece. Work up to this size in 1/16" steps then STOP. Grind a chisel on a 1/16" dia. music wire 4-6" long. Work this around the stud remnants and gradually collapse them inward with gentle taps of a small (8 oz. max.) ball peen hammer. Use a magnet-on-a-stick tool and move it around to dislodge the pieces. When the first sliver comes out, repeat the tap - tap step. Usually they are reluctant but do come out.

If they don't come out, or you have a less then complete selection of drill bits, you can try this - very carefully. Using mirror, flashlight and dremel tool, grind outward from the hole you've drilled. Eventually, you will start to see the ridges of the thread cut into the head poke through the stud material. You can get away with removing a smallamount of the crest of the thread - this will make the stud fit a bit poorer, but probably won't matter much. At this point, you can try using the hammer and punch to rotate the fractional piece of the stud in the threads.

You can also take the file to the hole and enlarge it, and then try the above methods.

Finally, you can use the file (or a small grinding point on a Dremel) to remove the first couple of threads of the stud (using the scribe to pick the pieces out of the troughs of the manifold thread).

When you have achieved this state, you can start using the tap to remove the remaining metal. Finish the hole with the proper size tap drill liberally coated with grease. This will clean out the remaining chips. Run the tap in and then out (chase the thread) then use the greased tap drill again. Voila! (The grease on drill and tap works great when you must put a Helicoil in a spark plug hole.) Best is a tap with a tapered start, so you can get some purchase in the hole you've drilled; once you've removed a bunch of the metal, you can switch to a plug-style or bottoming tap to clean out the deeper grooves. Chances are that the trapped material will break off in complete rings, which you want to remove - pull the tap and use a sharp object to try to clear these out before tapping more. You want to reverse the tap often in order to clear the shards. Use the tap to essentially tap a new hole - you want to go about 1/8 turn at a time, cleaning the tap every time. You'll probably lose the first couple of threads in the manifold, but that shouldn't matter much.

Center punches, etc. are always off center; Murphy's Law #726. Either tilt the punch toward the center and hit it some more (driving the mark toward center) or start the 1/8" drill on the mark but just barely. Tilt the drill so as to drill the hole toward the center. When you can straighten the drill and the hole is centered, the hole should be no more than 3/16" deep so go slowly! This first bit of hole is the most important to the whole job; a few minutes here repay themselves quickly. Between the punch and the drill, this works 10/10 when you have room. I often end with a tap drill and loose no more than about 0.005" thread. Remember: if you are off center 0.015" (two hairs) even a Helicoil may be too far off center to save you.

I spent three or four evenings in the process of removing a broken stud from Sarah's head. It was not pleasant, but it beat the hassle and expense of removing the head.

I have spent weeks getting a stuck tapered plug out of a cylinder head. Like it says in the list above, patience is important.

Oops again...

So you broke off the EZ out? Now you're in bad shape. Take the part in question to a machine that has a plasma cutter or an EDM (Electrical Discharge Machining) machine and get them to remove the remains. They'll cut that sucker out in nothing flat, very precisely. It probably won't even cost much, but you *will* have to remove the part in question.

If you're good with a welder and brave, you can try welding a piece of stock to the broken bit to give yourself some purchase to turn it all.

How to avoid this

When you get it all done: make sure you use anti-seize on the new studs before you install them, so you (or the person you sell the car to!) won't have to go through this the next time. On an exhaust parts, use brass or stainless steel nuts and lock washers, so they don't corrode in place (TRF sells the brass nuts, as do most auto parts stores; go to a marine supply for the stainless kit). ARP is starting to manufacture stainless studs for British applications, but I don't think they have any for Triumph yet.

[jcrome04]

WOW! :D

Definately taking it to the stealer now!! hahahaha

[dcfish]

WOW! :D

Definately taking it to the stealer now!! hahahaha

Convincing HUH???

[jcrome04]

Yeah, I don't know if you had to write THAT big of a persuasive essay for me though! :D

[fencera]

I ran into almost exactly the same problem. The new plugs are not very expensive at the dealer.

I was only able to get the top plug off. I then put the sucking end of my pump for the fresh fluid into the differential, pumped out the old fluid and then filled it back up. While I was not able to clean off the magnet on the lower plug, I am reasonably happy to have swapped the fluid at least.

One idea I did try on the lower plug (I read some of this thread so far but not all so you may have tried this) was to cut a notch into the plug with a dremel so that I could more effectively try to use a hammer to loosen it up. While it did not work (yet) in my case, it might in yours. And yes, I did use plenty of Kroil and WD-40 for a week on an almost daily basis to try to free it up.

My next idea is to try to either glue or weld a 10 mm hex blank into the hole for the plug and then turn that to get the damn thing out. So frustrating on these older cars...

Just make sure that whatever you do, you experiment on the upper plug first as that is the one you need to use to fill the fluid back up.

Good luck.

[SKperformance]

I prefer pb blaster , applying heat from a torch and tapping it with a hammer.

Doing this in sequence over a few times will cause it to loosen. '

Since the hole is rounded get a stud /nut remover . Should be done it 30 minutes.

[jcrome04]

Ehh... I was excited to do it by myself at first....now it just *BLEEP*es me off and I want someone else to deal with it! :) haha

Thanks for I'll the info though. I'll put it to use on a bolt that's not in such a precarious position! heheh