Manual vs Auto off-road

[Wooky]

My point 2 was more to do with attempting a steep slope and not making it to the top.
In a manual you: (technique that is punted as safe)
Stall the car,
Apply brakes and makes sure they are holding the car,
Put car in reverse and let out the clutch,
Release brakes so that engine (not running) is holding the car,
Start car (without touching the clutch),
Car heads down hill under engine braking.

This is not possible in an auto so you have to bring it back down the hill on brakes alone.
With the brakes on a vehicle normally biased to the front wheels this puts the bias in the wrong direction and if a person is not gentle on the brakes this can lead to some interesting descents
Or you have to hold the vehicle on the brakes, select reverse and let off the brakes. This leads to a rapid surge down the hill before the engine braking kicks in.... pucker factor!

My point 5 was about transmission internals only. Any well maintained transmission is not an issue but a lot of auto boxes are now "sealed for life". over heat that auto box and the oil degrades causing heaps of expensive trouble in the clutch packs and brake bands.

[Wooky]

Hedgehog you are right.
Unfortunately not many people now days know about, let alone use, left foot braking.
In an auto it has a number of uses over and above stopping the car.

[ThysleRoux]

Andrew, FFS don't take it personally - you used the wrong term (or at least an ambiguous one), deal with it.

[Wave]

In an auto it has a number of uses over and above stopping the car.

Yeah! Like a burn out

[Wooky]

First part is what Hedghog is talking about...

https://www.youtube.com/watch?v=L85t5WLCK84

[Wooky]

In an auto it has a number of uses over and above stopping the car.

Yeah! Like a burn out

Like the way you think......

[Wave]

Like the way you think......

Not in my Tuna though

[XJ Junkie]

Thys is correct. It’s all about throttle input & timing. Having a proper low range ratio also helps.

Engine wise, I’ve never stalled at auto & I don’t think it’s possible.

Fok guys, I never said the engine would stall,

...f you stall an auto over rocks you are an idiot.

I still can’t understand how you stalled it over rocks.

[Wave]

[XJ Junkie]

This is not possible in an auto so you have to bring it back down the hill on brakes alone.

It’s even better in an auto. Firstly, you won’t stall in the first place. Then if I don’t make an obstacle, I just pop it into reverse & reverse down again using brakes to regulate the speed.

Much easier & it always has constant drive to the wheels as there’s no clutch.

[XJ Junkie]

Unfortunately not many people now days know about, let alone use, left foot braking.
In an auto it has a number of uses over and above stopping the car.

In addition to left foot braking, I also use the rev limiter as a brake.

[Wooky]

This is not possible in an auto so you have to bring it back down the hill on brakes alone.

It’s even better in an auto. Firstly, you won’t stall in the first place. Then if I don’t make an obstacle, I just pop it into reverse & reverse down again using brakes to regulate the speed.

Much easier & it always has constant drive to the wheels as there’s no clutch.

Read the second part of that paragraph that I wrote... " Or you have to hold the vehicle on the brakes, select reverse and let off the brakes. This leads to a rapid surge down the hill before the engine braking kicks in.... pucker factor!"

Also read the section about brake biasing and descending a slope backwards. On less steep slopes not an issue but I have seen people on steeper slopes start rolling backwards on brakes alone, get a bit panicky with the speed they are moving and stomp on the brakes. Front wheels lock easily and now they have no directional control. In some earlier ABS equipped vehicles this lead to the brake system releasing all the brakes with disastrous consequences. I drive an early model Everest which is known to let this happen on occasion. later ABS system are supposed to be better but I don't have any experience with them.

Part of the safety in the technique is in the actual stall possibility in the manual transmission.

[Wooky]

I have stalled an Auto many times on rocks..... see point 2 below


"verb:
1.
(of a motor vehicle or its engine) stop running, typically because of an overload on the engine.
"her car stalled at the crossroads"

2.
stop or cause to stop making progress."

[ThysleRoux]

With motor vehicles the term stall is generally accepted to be as in point 1 above (ENGINE died for whatever reason). Point 2 is usually referred too as "STOPPED", "BOGGED DOWN", etc.

Hence my previous comment that the term was ambiguous.

[Wooky]

Cool.... just making light of something that seems to be getting everyone so tense