Reply With QuoteI always have a flick through....a couple of articles in this one worth while having a read
A little OCD....but ya reckon you could have found a pic of an Aussie soldering iron.
Moderator
The latest issue of Loaded4x4 has hit the stands..., er, etherhttp://www.loaded4x4.com.au/issue-005/#1
and remember it's free!
Swaggie
I always have a flick through....a couple of articles in this one worth while having a read
A little OCD....but ya reckon you could have found a pic of an Aussie soldering iron.
Moderator
Have a read of David's big serve to the ute manufacturers regarding leaf rear ends and drum brakes.
He doesn't hold back!
Swaggie
Must have flicked too quick....was wondering what the focus was on the drums
It’s hard to believe there are still drums on new cars...just like drums on caravans.
YarnMaster
I haven't read the whole arrival but I do have some issues so far about some of the things said about drum brakesOriginally Posted by rick130
Have a read of David's big serve to the ute manufacturers regarding leaf rear ends and drum brakes.
He doesn't hold back!
Swaggie
I have to ask the question.....what is wrong with drum brakes?
I have to ask the second question... what is wrong with leaf springs?
Wizard
Just 2 reasons off the top of my head.
1. No self cleaning. The crap stays in there and causes wear
2. Similar to 1. Water does. Not dissipate as easily causing reduced performance.
Another, self adjustment is mechanical and more prone to problems.
Fuji white RRS L494 AB Gone
2023 Ford Ranga
TopicToaster
Supporter
Have a read of David's big serve to the ute manufacturers regarding leaf rear ends and drum brakes.
He doesn't hold back!
loved it!
Like he said, LR have been doing it for <however long> with the defenders ... question is why have they been so hard arzed about the rear setup for this long.
I've been thinking too tho, rear airbags would be an even better bet, in terms of load/ride height/ride/ etc than coils too.
Arthur.
All these discos are giving me a heart attack!
'99 D1 300Tdi Auto ( now sold :( )
'03 D2 Td5 Auto
'03 D2a Td5 Auto
Wizard
Great article on antiquated hire and cart tech...it’s one major reason I e always drive a Defender in preference to a Toyota.
The only Land Rover in the top 20 4x4’s is the Disco Sport in 18th! ...and yet LR pioneered rear coils and discs. Then at least a dozen in the top 20 have leaf springs and / or drum brakes! Go figure!
Enjoyed the mag overall, if a little bit ute heavy! But I guess it’s inevitable.
Thanks guys
Moderator
The big thing for me is their lack of performance when hot, and it doesn't take much to overheat drums and then they just don't come back, they don't dissipate heat very well.
And they are heavy, they add substantially to unsprung weight, which affects ride quality. Not a biggy on a load carrying vehicle, but it all adds up.
Add to that what geedubyla said re water. Those of us who used 4 wheel drums way back can remember riding the brakes for what seemed like forever trying to dry them out after a creek crossing.
One advantage of drums is that they self energise, which is why I'd never use an X-Brake on a road/off-road Deefer or Disco.
Leaf are just crude, we are trying to locate the axle and suspend the chassis?
it's a simple and effective way to achieve ride, carrying capacity and location, but a nicely designed coil or airbag rear end does it so much more nicely.
Ever watched a leaf rear wind itself up under power ?
Think first gear, low range and lots of traction, the main leaf can wind itself into an S easily. Or break. It just depends on the heat treating. And that same winding themselves up is why they axle tramp. They are compromised in trying to locate the axle as well as support the chassis.
Leaf rear ends with a 4 link and panhard or Watts Linkage work really well, but then we may as well use coils. Or air bags.
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