Author Topic: Turbo Heatshield removal problem  (Read 3857 times)

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  • gb United Kingdom
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Turbo Heatshield removal problem
« September 28, 2018, 08:42:02 »
Hi All,
I have problem with one bolt on Turbo heatshield. The top bolt is stuck and even penetrating fluid does not help.
I do not have handy impact driver.

Any ideas? Any "patents"?







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Re: Turbo Heatshield removal problem
« Reply #1 : September 28, 2018, 10:05:11 »
Not crazy about these scenarios myself. maybe heat it up a bit  and use a 6 sided socket and breaker bar but there's a risk it may shear off leaving the thread behind.
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Re: Turbo Heatshield removal problem
« Reply #2 : September 28, 2018, 11:16:08 »
I had a similar situation with the O2 sensors on our previous Rav4.

Only solution was to get a blowtorch on the surrounding metal, or in your case try to target the turbo body



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Re: Turbo Heatshield removal problem
« Reply #3 : September 28, 2018, 15:34:10 »
I tried to undo it, after driving car. The turbo body was pretty hot. No luck. Did not tried breaker bar.

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Re: Turbo Heatshield removal problem
« Reply #4 : September 28, 2018, 22:52:21 »
I know you have tried a penetrating fluid on it, but I have read several times that a 50/50 mix of ATF (auto trans fluid) and acetone will get in where most fluids will not.
Never had occasion to try it myself, but anything's better than shearing that stud off.

And if you ever do manage to remove it make sure you put some copperslip on the threads before you reassemble it..
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Re: Turbo Heatshield removal problem
« Reply #5 : September 29, 2018, 04:03:57 »
Does the bolt turn...but not undo? If so, thread could be stripped.

Or just won't budge?

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Re: Turbo Heatshield removal problem
« Reply #6 : September 29, 2018, 04:34:26 »
I tried to undo it, after driving car. The turbo body was pretty hot.

Thing is, the bolt woiuld also have been hot.

I'd tackle it from cold, heating the block where I pointed.
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Re: Turbo Heatshield removal problem
« Reply #7 : September 29, 2018, 04:36:52 »
I tried to undo it, after driving car. The turbo body was pretty hot.

Thing is, the bolt woiuld also have been hot.

I'd tackle it from cold, heating the block where I pointed.
Thanks, I need to get hold of blowtorch first.




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Re: Turbo Heatshield removal problem
« Reply #8 : September 29, 2018, 05:13:44 »
I tried to undo it, after driving car. The turbo body was pretty hot.

Thing is, the bolt woiuld also have been hot.

I'd tackle it from cold, heating the block where I pointed.
Thanks, I need to get hold of blowtorch first.

Obviously be careful near fuel lines and stuff!
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Re: Turbo Heatshield removal problem
« Reply #9 : September 29, 2018, 07:01:41 »
I tried to undo it, after driving car. The turbo body was pretty hot.

Thing is, the bolt woiuld also have been hot.

I'd tackle it from cold, heating the block where I pointed.
Thanks, I need to get hold of blowtorch first.

Obviously be careful near fuel lines and stuff!



Thanks for that. Will try my best. The fuel lines are a little deeper. More worried I am for Oxygen (i think) sensor visible on the picture.

I was thinking of buying one for future use.
Every forum I look it advising of buying Rothenburber

I found this in Screwfix:
:link: Rothenberger Super Fire Torch & Map Pro Gas Cylinder | Disposable Gas Cylinders | Screwfix.com

Any thoughts?

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Re: Turbo Heatshield removal problem
« Reply #10 : September 29, 2018, 07:10:20 »
I would have no idea but others might.  :cool:
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Re: Turbo Heatshield removal problem
« Reply #11 : September 29, 2018, 07:13:55 »
Rothenbergers are good, I used them for years when I was doing refrigeration though might be overkill if you're just wanting to heat the exhaust with no further professional use :undecided:

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Re: Turbo Heatshield removal problem
« Reply #12 : September 29, 2018, 07:24:39 »
How about those ones they use in cooking ?
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Re: Turbo Heatshield removal problem
« Reply #13 : September 29, 2018, 07:27:18 »
Have you tried mole grips then attach length of tube to grips to get leverage.



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Re: Turbo Heatshield removal problem
« Reply #14 : September 29, 2018, 07:31:26 »
How about those ones they use in cooking ?
Yeah a good one of those will do the job at a far cheaper cost :goodjob2: and can use for crème brulee's when the jobs done :)

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Re: Turbo Heatshield removal problem
« Reply #15 : September 29, 2018, 07:37:11 »
Have you tried mole grips then attach length of tube to grips to get leverage.
You've got to be kidding :Shocked: first class way of stripping the head :disapp: a socket is the only tool to use, a good knock with a hammer can help to free up seized bolts too combined with penetrating oil and some heat as mentioned.
« Last Edit: September 29, 2018, 09:37:49 by CraigB » »

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Re: Turbo Heatshield removal problem
« Reply #16 : September 29, 2018, 08:19:15 »
If you are not in a hurry, soak the bolt for a week or two with some oil. For me the 50/50 acetone atf yas worked best.
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  • gb United Kingdom
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Re: Turbo Heatshield removal problem
« Reply #17 : September 29, 2018, 10:17:46 »
How about those ones they use in cooking ?
Yeah a good one of those will do the job at a far cheaper cost :goodjob2: and can use for crème brulee's when the jobs done :)

My wife has one of those. I may use it. I was under impression that it would be not enough for this job. Will give a try. Thanks

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Re: Turbo Heatshield removal problem
« Reply #18 : September 29, 2018, 10:33:05 »
My wife has one of those. I may use it. I was under impression that it would be not enough for this job. Will give a try. Thanks
Some are more powerful than others but shouldn't need to be to big, idea is to heat the bracket before heat soaks into the bolt though generally I would have expected 5 minutes of running the car to have given enough heat to do the same job but maybe blow torch can heat a little quicker :undecided:

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Re: Turbo Heatshield removal problem
« Reply #19 : September 29, 2018, 11:16:46 »
My wife has one of those. I may use it. I was under impression that it would be not enough for this job. Will give a try. Thanks
Some are more powerful than others but shouldn't need to be to big, idea is to heat the bracket before heat soaks into the bolt though generally I would have expected 5 minutes of running the car to have given enough heat to do the same job but maybe blow torch can heat a little quicker :undecided:
I tried to undo bolt after driving car for about 30 min, but the bolt is stuck solid. Did not tried to hammer it, or use breaker bar. I was afraid that it will sheer off.




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Re: Turbo Heatshield removal problem
« Reply #20 : September 29, 2018, 11:20:48 »
My wife has one of those. I may use it. I was under impression that it would be not enough for this job. Will give a try. Thanks
Some are more powerful than others but shouldn't need to be to big, idea is to heat the bracket before heat soaks into the bolt though generally I would have expected 5 minutes of running the car to have given enough heat to do the same job but maybe blow torch can heat a little quicker :undecided:
I tried to undo bolt after driving car for about 30 min, but the bolt is stuck solid. Did not tried to hammer it, or use breaker bar. I was afraid that it will sheer off.

A light tap with a hammer combined with the heat application might just do the trick as suggested. Too much force will certainly add to the risk of shearing it off, which would be a right pain. Been there done that in my younger years.   :-[
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Re: Turbo Heatshield removal problem
« Reply #21 : September 29, 2018, 18:55:13 »
Do you have, a battery type impact driver?
Those things are great for removing tight fasteners as well as driving them home.
Use a 6 point socket rather than the more common 12 point for better grip and less chance of damage to the nut.

I don't mean use a pneumatic rattle gun, probably shear it off with that, but a good Makita or Bosch type would probably shift it.

Or alternatively you could try an impact driver, the type you hit with a hammer, they work quite well also.

Failing that I would still be inclined to use something like 50/50 ATF/acetone, build a small dam around the nut with plasticene or putty and let it soak for a couple of days.
« Last Edit: September 29, 2018, 20:09:08 by wooly » »
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Re: Turbo Heatshield removal problem
« Reply #22 : September 29, 2018, 20:52:44 »
No luck. Did not try breaker bar.

No! very lucky, its a small rusted 12mm ?? bolt!  the idiot  :whistler: who mentioned bar should have Lester's  :whistler: f'in mole grips attached to him.
 :twisted:
Be patient , use one or all of the above formulas , don't force it too much. Use enough heat to make it red hot, but only try to unscrew it when it has cooled down.
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Re: Turbo Heatshield removal problem
« Reply #23 : September 29, 2018, 21:20:00 »
No luck. Did not try breaker bar.

No! very lucky, its a small rusted 12mm ?? bolt!  the idiot  :whistler: who mentioned bar should have Lester's  :whistler: f'in mole grips attached to him.
 :twisted:
Be patient , use one or all of the above formulas , don't force it too much. Use enough heat to make it red hot, but only try to unscrew it when it has cooled down.
Lol, I save my mole grips for the very end after my small breaker bar usually in desparation.  :P
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Re: Turbo Heatshield removal problem
« Reply #24 : October 21, 2018, 14:42:07 »
Thank you everybody for advise.

I used 12mm 6 point socket and after not a long car drive, all bolts removed from heathshield without problems. No need for impact wrenches (I was thinking of buying).

I bought long ago Stanley socket set, but that are 12 points. The 6 point sockets are more better for removal of problematic bolts.

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Re: Turbo Heatshield removal problem
« Reply #25 : October 21, 2018, 16:52:11 »
Thank you everybody for advise.

I used 12mm 6 point socket and after not a long car drive, all bolts removed from heathshield without problems. No need for impact wrenches (I was thinking of buying).

I bought long ago Stanley socket set, but that are 12 points. The 6 point sockets are more better for removal of problematic bolts.

What a wonderful idea.  :P

And a short breaker bar or ratchet handle?

Not crazy about these scenarios myself. maybe heat it up a bit  and use a 6 sided socket and breaker bar but there's a risk it may shear off leaving the thread behind.

 :lol: :rofl:
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Re: Turbo Heatshield removal problem
« Reply #26 : October 21, 2018, 16:58:43 »
 :goodjob2: Yes another problem hits the dust. Good one.!

The 12 pointers are more popular because the drive is applied at more convenient angles, but I too like the 6 pointers.
They are often hard to find for the common 1/2 inch bar.
over the years I had built up 3 full sets of 6 & 12, long and short sockets, then the Germans arrived with Torx  :crazy1:
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Re: Turbo Heatshield removal problem
« Reply #27 : October 21, 2018, 18:35:58 »
:goodjob2: Yes another problem hits the dust. Good one.!

The 12 pointers are more popular because the drive is applied at more convenient angles, but I too like the 6 pointers.
They are often hard to find for the common 1/2 inch bar.
over the years I had built up 3 full sets of 6 & 12, long and short sockets, then the Germans arrived with Torx  :crazy1:
let's not talks about the  Torx.

Are Germans coming again? Crikey  :crazy1:

Impact sockets are usually 6 sided and half inch drive. ?

That's what I have.
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Re: Turbo Heatshield removal problem
« Reply #28 : October 21, 2018, 22:48:49 »
10mm impact ?  :winker:
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