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Help Needed - Snapped Engine Steady Bolt...


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#16 monkey

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Posted 13 April 2016 - 09:38 AM

Nothing wrong with easi outs, we used them a lot in aircraft and still do so.....  I have lots of the things what they are not good with is rusted in bolts, but as you had copper slipped yours it would be fine, I suspect you didn't have the correct support bracket in place hence why is broke, they are SAE5 bolts so not overly strong but still more than capable of doing the job if supported and bot bolts are tightened correctly.

 

Cooperman is right about the 1000kg shear capacity, but this becomes a little different when you don't have the supporting bracket and you get a combination of tensile and shear forces, this combination in your case has caused fatigue, in just the same way that Uri Gella breaks spoons.

 

Part item number 23 in the picture below

 

attachicon.gifimage.axd.jpg

 

 

The support bracket (part 23 in the picture) was in place, however i do question if the bolt (bolt 24) was tightened enough. By the previous owner it had been replaced with a longer bolt with a nut on it to tighten down onto the bracket, if that makes sense? and i had noticed mid week that that nut had come loose, so if it came loose once, maybe it came loose again, and my "spirited" driving yesterday coupled with the loose nut caused the long bolt to shear?

 

Either way I have ordered the repair bracket and I will couple that with the thermostat steady next time i order from mini spares and hopefully that will sort me out. I know the correct option would be to drill the sheared bolt off, but not having the tools / time / confidence to that at this time ill go with the repair bracket :)

 

Thanks all for your input :)



#17 nicklouse

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Posted 13 April 2016 - 10:00 AM

so the bolt was most likely not to the correct spec. a cheap one and was fully threaded.

 

the hole should not go into the water jacket.

 

Sounds like an earlier owner has messed up the threads and then drilled into the water jacket and added more threads and then done a bodge.

 

I would remove the remains and then seal with a bolts and a copper washer after having cleaned up the surface.

 

then fit one of the kits like above and I would also fit a stabilizer on the rad side of the engine as well.



#18 MRA

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Posted 13 April 2016 - 10:03 AM

Yes it makes sense, it would be like a stud with a head ;-)

 

The thing with fatigue is it can happen in any amount of cycles, and you don't know how many it had already done, it could of been on it's final failure mode when you bought the car...

 

Can you photograph the broken bit out of interest, you will find a dark grey oval at the last point of failure and a lighter patch radiating out from there, the size of the dark piece gives us a clue as to how quick it failed.



#19 MRA

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Posted 13 April 2016 - 10:05 AM

so the bolt was most likely not to the correct spec. a cheap one and was fully threaded.

 

the hole should not go into the water jacket.

 

Sounds like an earlier owner has messed up the threads and then drilled into the water jacket and added more threads and then done a bodge.

 

I would remove the remains and then seal with a bolts and a copper washer after having cleaned up the surface.

 

then fit one of the kits like above and I would also fit a stabilizer on the rad side of the engine as wel

 

 

 

 

Or just helicoil and use a little silicone sealer



#20 monkey

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Posted 13 April 2016 - 12:47 PM

At some point i will try and get the remains of the bolt out, but for now as it is sealing the water in I'm hoping I will get away with leaving it.

 

I will try and get a better picture when I get home, I take it you mean the remains in the block? - The bit that has sheared off is down the road somewhere!



#21 monkey

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Posted 16 April 2016 - 05:32 PM

So I got the bracket fitted, fits like a glove :-)

8001973D-3204-4F83-A9EB-FBA74DA0AD4F.jpg

On the other side... Is this the bulkhead part of the engine steady that attaches to the thermostat housing? The thermostat end isn't there lol

BA5D98E3-3659-47FD-A41D-A5DCF5E8FB5D.jpg

Edited by monkey, 16 April 2016 - 05:33 PM.


#22 carbon

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Posted 16 April 2016 - 06:32 PM

If you're going to drive in spirited fashion then would be worth fitting an additional engine steady.

 

Are there any steady bars fitted to the gearbox?



#23 Batmini

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Posted 16 April 2016 - 06:51 PM

I fitted the steady bars to both sides of the gearbox on mine, but didn't bother with the steady bar on the thermostat.

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#24 monkey

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Posted 16 April 2016 - 08:50 PM

It's got one gearbox steady, clutch side to the front of the front subframe.

I do want to get the thermostat end steady for a bit of peace of mind lol

#25 MRA

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Posted 17 April 2016 - 02:20 AM

The other top bracket is for an uprated steady assembly that fits the thermostat and exhaust manifold stud



#26 tamlamotown123

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Posted 17 April 2016 - 07:12 PM

Hi if you think the broken thread is not too tight, ie copper greased then if there's room, consider a left handed drill as it will unscrew it.






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