If they're not an off the shelf part they probably won't supply, but might possibly be able to point you in the direction of some that can.
Technical Koni FSD rear shock rattle.. Shock!
- Thread starter The Twins
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Technical Koni FSD rear shock rattle.. Shock!
I just got a reply also - same cost for the goods but the shipping is 250 zl (for 4 bolts !!!) hummmmmmm
Question - they said the material was galvanised zinc .......... which is a coating so I am unsure as what is a base material. Anyone know ??
I had my fourth set of Konis fitted six weeks ago and they are as rattly as ever - possibly the rattliest set yet!
Shoddy service, surely after 4 sets they'd take a step back and think that something was wrong, clots!
Looking at the parts system here at work, GE Tools do some extremely similar bolts. I'd give them a call, i reckon they'd probably be able to get them for you quickish.
This is not a sig at you i promise, but do you understand why I'm not quite so trusting of dealers and the info they provide?
I definitely think sourcing a UK bolt supplier is the way to go, just to avoid language confusion. We don't want beautifully engineered bolts made from the wrong material.
I've emailed a couple of companies who may be able to help and they are asking how many sets we want to order, so let's start counting, add your name below if you're interested.
1 Staffordmike
I've emailed a couple of companies who may be able to help and they are asking how many sets we want to order, so let's start counting, add your name below if you're interested.
1 Staffordmike
Mike, before going to the trouble of getting someone to make them up, call the supplier i mentioned a few posts ago, i would but I'm in work atm.
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Don't worry this is one customer who has had his fill of Abarth dealers and Abarth UK. :bang:
Try these people, we buy all our stainless fasteners from them and I know that they do specials.....
http://www.triard.co.uk/fasteners/specials/view-all-products.html
http://www.triard.co.uk/fasteners/specials/view-all-products.html
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Thanks. Just sent them an email.
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The Twins
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I'm not totally convinced that it is the bolts but it's worth a try.
I think the issue is the same as used to occur with Fox mountain bike forks with 'platform damping'. They'd rattle too. It's the valve that controls the oil flow that allies the damping characteristics to change depending on the terrain.
If the bolt was moving in the bore, it would be the faces of the bush that would wear away making the bolts go loose. I checked the tightness of mine this am and they were still really tight with no sign of abrasion on the faces of the mating bush / bolt head surfaces.
I think the issue is the same as used to occur with Fox mountain bike forks with 'platform damping'. They'd rattle too. It's the valve that controls the oil flow that allies the damping characteristics to change depending on the terrain.
If the bolt was moving in the bore, it would be the faces of the bush that would wear away making the bolts go loose. I checked the tightness of mine this am and they were still really tight with no sign of abrasion on the faces of the mating bush / bolt head surfaces.
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Exactly - same bolts used on Bilstein dampers and mine don't rattle.
Personally i wouldn't go spending loads on custom fasteners when you'll be able to get suitable ones off the shelf. The place I'm working at currently manufactures automotive tooling for the likes of JLR, Mercedes, Ford and GM so we've got lots of M10 and M12 cap head screws used to build tools, we pay about 20-30p per screw and we use far longer bolts than you'd need on a 500.
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I had Koni FSD's on my Mito and there was never a hint of any knocking, nor if I'm right any mention on the Alfa forum of any others with that problem. Yet the Abarth forum is full of knocking Koni threads. I'm assuming the shocks on the Mito and Abarth are the same basic design. The fitment might therefore be the problem, but as you say if everything is still tight then how can there be any movement. Maybe I'll just let the dealer work it out.
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I don't know if this tells you anything (I am not a technician or engineer) but these are the characteristics of my custom made bolts proposed by already known company:
- tempered & stainless steel material grade 40 H was used for M10x1.25x65 / 10,9 class bolts
- tempered & stainless steel material grade 45 was used for M12x1.25x95 / 8,8 class bolts
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The Mito has a completely different suspension system though, being based upon the Grande Punto platform. The car is different, the dampers are different in basic design (length, travel, etc), so the valving design will be completely different.
It's obviously the 500 FSDs though isn't it.
Many people have the OE dampers. They don't rattle.
People have Bilstein B14 dampers (including myself). They don't rattle.
People have Koni FSDs. They do rattle.
Hmmm, I wonder what could be the issue...?
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Ok, so what do you think is best plan of action then?
