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what causes leaf springs to fail? i thought spring steel wasnt

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Thread replies: 14
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File: leafy.jpg (30KB, 600x450px) Image search: [Google]
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what causes leaf springs to fail? i thought spring steel wasnt supposed to be brittle...

i just bought a truck (not in pic) that has 15 broken rear leafsprings and 3 intact ones
>>
>>16083842
Rust, which you seem to have a shit load of and excessive use.
>>
Massive overloading. Sell it now.
>>
File: lexusrx400.jpg (501KB, 768x1024px) Image search: [Google]
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>>16083842
The way that one is broke up I'm leaning towards impact. Maybe it got launched over a ditch or something.

And fwiw springs break all the time. Coil springs do it too
>>
Eventually they fatigue and the steel cracks. Occasionally I see broken leaf springs on busses that work rough/potholed roads. Apparently it's really common for them to break on logging trucks. It's not nesecarily because of overloading, just working on rough roads.
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>>16083852
>>16083850
mine isnt rusty like that but theyre broken in similar places. i knew the truck was beat when i bought it, i was just wondering if there was any sort of measures to prevent it happening again to my new springs, like painting or oiling the leafs?

>>16083884
the truck is a dually dump flatdeck, i thought it might be from something heavy being dropped on the deck

>>16083893
lots of dirt roads and washboard around here, makes sense
>>
Why do things break?

Because they rust and because they wear out.
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>>16083842
>leaf springs

Maybe next time don't try to drive a medieval chariot.
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>>16083842

Well, once one fails it puts more load on others. Everything from age, manufacturing imperfections, high mileage/old age, poor quality, the type of driving they've seen, it isn't super common but not rare either.


>>16083852
With as many as yours has, this is also a possibility.

>inb4 cooked trans and bent/tweaked frame
>>16086498
They just werk, get the fuck over it.


>tfw my 48 year old leafs are intact and working just fine after all these years

Glorious american chariot.
>>
Either rust or really shitty steel or both. I know 60 year old trucks with original leaf springs.
>>
My 03 Tacoma had a cracked leaf, the springs were sagging and i think im the only one of its owners to actually haul shit in it.
>tfw hauling 700lbs of steel on freeway
>tfw head a loud "PING"
>tfw truck starts to get the wobbles
Had to slow down to about 55mph and found the broken leaf when i got home. Ordered some new Dakars and those are great.
>>
>what causes leaf springs to fail?

Overloading and/or impact, but they are easy to swap out and you can replace them with a used set off a heavier duty model.
>>
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>>16083842
failure from cyclic stresses is a thing if you exceed the endurance limit of your material.
>>
>>16083842
Rust.

Just get a car with independent suspension.
Thread posts: 14
Thread images: 3


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