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Old 17-07-2017   #31
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Every NEW job on the Fiat that's never been moved since manufacture tends to fight you all the way, often being seized or rusted away heads on stupidly small screws that should have really been stainless steel?
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Old 17-07-2017   #32
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Quote Originally Posted by John202020 View Post
Every NEW job on the Fiat that's never been moved since manufacture tends to fight you all the way, often being seized or rusted away heads on stupidly small screws that should have really been stainless steel?
There are problems with using stainless in these sort of applications; S/S bolts have only about 3/4 the strength of HS steel ones, plus they're much more brittle; so tend to snap off without warning, which is obviously dangerous.
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Old 17-07-2017   #33
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

To be fair - I didn't have any problems doing the front brakes (about six months ago). Just the backs that decided to 'give me an opportunity to learn new skills'.
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Old 17-07-2017   #34
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Quote Originally Posted by Petitpal View Post
To be fair - I didn't have any problems doing the front brakes (about six months ago). Just the backs that decided to 'give me an opportunity to learn new skills'.
I am amazed you were able to drill out the broken screw extractor . Extractor must have been from the same cheese works that produced the offending screw.
Good work drilling through exact centre of screw.
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Old 18-07-2017   #35
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Quote Originally Posted by jackwhoo View Post
I am amazed you were able to drill out the broken screw extractor . Extractor must have been from the same cheese works that produced the offending screw.
Good work drilling through exact centre of screw.
You would not believe how relieved I was - I was on the brink of writing a Nordic saga about these -bleeping- brakes!

I suspect you are correct about the extractors though - sadly I was forced to buy off eBay because my local tool shop has shut (since the manufacturing companies next door to it have closed down).

Drills on the other hand, were amazing - 135 degree head / cobalt; didn't even need to centre punch (with a steady hand).
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Old 18-07-2017   #36
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Quote Originally Posted by Petitpal View Post
You would not believe how relieved I was - I was on the brink of writing a Nordic saga about these -bleeping- brakes!

I suspect you are correct about the extractors though - sadly I was forced to buy off eBay because my local tool shop has shut (since the manufacturing companies next door to it have closed down).

Drills on the other hand, were amazing - 135 degree head / cobalt; didn't even need to centre punch (with a steady hand).
Please post where you you purchased drill bits from and price
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Old 18-07-2017   #37
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Quote Originally Posted by jackwhoo View Post
Please post where you you purchased drill bits from and price
These ones, although it looks like I bought them from Amazon, not eBay (d'oh):




For the massive price of 7 quid. Can't say anything about their longevity, but they went through that bolt and stud extractor with a hand drill.
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Old 28-07-2017   #38
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Re: 2008 500 1.4 sport, rear stub axle stud sheared

Funny you should mention working on a Golf. I had to give up the idea of changing my Mk7's rear discs simply because the caliper carrier was held in with recessed spline bolts. I bought the correct type of bit and it was too long to fit past the suspension. Ordered another and it promptly chewed out the head of the bolt, which by my estimate was tightened to 140Nm or more. At this point I just returned the new discs and gave the rusty originals a sand and a lick of paint in-situ. The fasteners that VW use are not only special weak shapes and very tight, but also difficult to reach. Of course it is quite possible that the Mk7 is worse than previous Golf models to work on.

But anyway, I can sympathise with the frustration you faced with the FIAT!

Things are probably a bit easier for us in NZ without the road salt. Did the difficulty on the 500 arise from the disc being corroded onto the hub? Normally it's a case of removing the caliper from the slider bolts, removing the caliper bracket from the axle bracket, then removing the disc from the hub. The hub stayed on when I did it. There will always be exceptions I guess and it does sound like a horrible job when it turns out that other way.


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