I love sheared bolts, me, love them.....

steveo · Jul 2, 2016

P gasket replacement time - the lower bolt on the alternator has sheared - the remains look like it was previously overtightened, as its not fresh metal on the sheared end.

I can't grip it with mole grips, I can't find my 'easy out' set, I don't have a hot enough flame, or a welder.

I can't put it back together with just the top bolt as it will rotate without the bottom bolt in place and throw the belt.

On top of that, it has just started chucking it down

my shed is too full of wifes stuff (somehow) so I can't retire there either....

Out with the chisel and big hammer I think!

IamRobbie · Jul 2, 2016

Start searching for the easy our set or straight to screwfix

steveo · Jul 2, 2016

screw fix it was.

Drilled it, screwed it, sheared off the screw extractor

raining again

potus · Jul 2, 2016

Have had more failures than successes with Easiout's. Hammer and chisel usually sorts it

steveo · Jul 2, 2016

potus said:
Have had more failures than successes with Easiout's. Hammer and chisel usually sorts it

Tried that first, now the whole thing is so far down the hole, I can't even get a punch on it. Drilling right through is the next option, from the rear !

jamesmartin · Jul 2, 2016

steveo said:
screw fix it was.

Drilled it, screwed it, sheared off the screw extractor

raining again

you wont drill that out if its stuck in ,these are the best type

steveo · Jul 2, 2016

What make, James? The bolt around the extractor is collapsing, so I was hoping to get it punched out from the back.

jamesmartin · Jul 2, 2016

mines a snap on badged one they arent cheap ,drilling out and a recoil would be cheaper

steveo · Jul 2, 2016

I should have just drilled out in the first place. Damn screw extractors. Its not shifting.... I have nothing hard enough now to drill the extractor out, and a new bracket is £250 + vat.

I think I can use the PAS pump mounting bolt and a bracket from that to locate the bottom of the alternator - which is all the bottom bolt seems to do anyway - assuming the PAS pump and alternator are reasonably in line.... I can't see at the moment as its all in bits.....

freelance · Jul 2, 2016

Stahwile also make a great set of stud extractors identical to james picture

top drive · Jul 3, 2016

If the brackets off the block.

Phone locally see if any engineering companys see if anyone has a spark erosion set up.

I had to get it done once when a jnr eng snapped an easi out in a blind hole in the african jungle.

50 dollar but saved hours of grief

fanatic · Jul 3, 2016

Try a Colbalt drill slow with some oil as lube

The Mad Hat Man · Jul 3, 2016

Problem with trying to drill out a very hard item (screw extractor or bolt) in an aluminium housing is that the drill is very prone to run off centre, giving you a big hole, not where you want it

steveo · Jul 3, 2016

Thanks for all the suggestions . I put it all back together and used a repair washer on the nearest pas pump bolt to stop the alternator pulling onwards . Bodge .

You can see the bolt had been like that for s while and it seems like it was screwed in to the alternator .

Kwakerman · Jul 3, 2016

If you can get to the rear of the sheared bolt you could try drilling the bolt with say a 3.5mm drill up to the end of broken extractor, you may then be able to get a 2.5mm punch on to the end of the extractor and give it some sharp hits with a hammer. The shock may cause the extractor to unscrew and pop out the remnants of the bolt. at least that may allow you to drill and helicoil the hole, failing that it is probably spark erosion time

steveo · Jul 3, 2016

Kwakerman said:
If you can get to the rear of the sheared bolt you could try drilling the bolt with say a 3.5mm drill up to the end of broken extractor, you may then be able to get a 2.5mm punch on to the end of the extractor and give it some sharp hits with a hammer. The shock may cause the extractor to unscrew and pop out the remnants of the bolt. at least that may allow you to drill and helicoil the hole, failing that it is probably spark erosion time

Nice idea - I did try that - bent my punch

It was my favourite too.....

123-eddy09 · Jul 3, 2016

One here on eBay http://www.ebay.co.uk/itm/LAND-ROVE...604861?hash=item5431ca75bd:g:GwAAAOSw1DtXITAv

steveo · Jul 4, 2016

The only one on eBay

I am all sorted thanks - if the imaginative engineering solution doesn't hold, I will have to replace the bracket.

Kwakerman · Jul 4, 2016

steveo said:
The only one on eBay I am all sorted thanks - if the imaginative engineering solution doesn't hold, I will have to replace the bracket.

That's not too bad a price (inc postage), would cost you more than that to have the extractor spark eroded out of your one. I would bite the bullet and go for it, less chance of it letting you down in the future if your temporary repair were to fail (and no it isn't me selling it

)

I love sheared bolts, me, love them.....

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