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Rear Subframe Mounts Rusted On..


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#1 Bdshim

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Posted 01 January 2020 - 03:59 PM


Ither side when the subframe mounts to the heal board a two bolts have snapped in the hole one itherside I'm thinking of trying to drill these out as I tried sliding the subframe off the remaining broken bolt but I think its rusted around the bolt and eont shift. I would get a photo up but my hosting site is playing up any advice tips would be appreciated.
Thanks πŸ‘

#2 Wreckitralph1

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Posted 01 January 2020 - 05:35 PM

i had the same i cleaned with a wire brush then wd40 then used a small pry bar between the sound heelboard and subframe as close to the bolts as i coud and then the opp side and poyt it came



#3 Bdshim

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Posted 01 January 2020 - 06:09 PM

I have been soaking in wd40 last few days il try that tommorw thank you

#4 gazza82

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Posted 01 January 2020 - 11:19 PM

I have been soaking in wd40 last few days il try that tommorw thank you


Try a better penetrating fluid ... wd40 is just a lubricant

#5 Bdshim

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Posted 02 January 2020 - 08:11 AM

I have been soaking in wd40 last few days il try that tommorw thank you

Try a better penetrating fluid ... wd40 is just a lubricant

πŸ‘

#6 JonnyAlpha

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Posted 02 January 2020 - 08:53 AM

PlusGas

 

https://www.amazon.c...l/dp/B0001P02RK



#7 MiniMadRacer

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Posted 02 January 2020 - 10:05 AM

At your own risk  - I have used a blow lamp (carpets out of the back of the car obviously and remove any trim form the side bins - preferably have a mate inside the car keeping an eye on things), heat the bolt / stud up and then protecting your face, spray from a 12 inch or so distance penetrating fluid on the stud.  The thermal shock shrinks the stud, often breaking the rust seal and as the stud instantly cools it sucks the penetrating fluid around the threads - Be very very careful though that the fluid doesn't spit and hit you in the face as it hits the stud.. I always where a full space grinding mask when doing this... and keep water / extinguisher within arms reach.. best to remove fuel tank too as a precaution



#8 sonscar

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Posted 02 January 2020 - 11:17 AM

Lever a small gap between the heelboard and fixing then using a suitably protected hacksaw blade cut through it.Then try drilling out the bolts.Steve..



#9 DeadSquare

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Posted 02 January 2020 - 12:29 PM

Lever a small gap between the heal board and fixing then using a suitably protected hacksaw blade cut through it.Then try drilling out the bolts.Steve..

 

 

If you can lever a gap, then, by tapping it back and forth it should loosen up and come off.

 

Welding a nut on to the snapped bolt close to the heal board gets a lot of heat into the captive nut inside.



#10 Bdshim

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Posted 02 January 2020 - 02:16 PM

Thanks for the suggestions much appreciated it's still not currently moving il keep you posted πŸ‘

#11 DeadSquare

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Posted 02 January 2020 - 03:20 PM

If you are lucky, (unlucky), the set screws twist off at the head, and it is possible to drill an 1/8th" hole between the top of the. 'now stud', and the mount;  this lets the easing fluid along the length of the thread.



#12 Bdshim

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Posted 03 January 2020 - 03:05 PM

Success! I managed to slide a hacksaw blade in a slowly cut the bolt thank you for all the suggestions, imageshack is still being a pain il get some photos up soon.

#13 Bdshim

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Posted 03 January 2020 - 03:08 PM

<a href="https://ibb.co/m9WHV7C"><img src="https://i.ibb.co/k4C...-054525-213.jpg" alt="IMG-20191230-054525-213

#14 area51

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Posted 05 January 2020 - 10:31 PM

I’ve just finished replacing one side, it’s not a pleasant job, the other side I managed to drill out very successfully

#15 bpirie1000

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Posted 06 January 2020 - 03:43 AM

If you can get the frame off try welding a nut to the studs.. saves so much time also heat is great idea.




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