Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Calendar · Profile · Donate · Register · Log In |
Home > General > “Crawl” mode |
|
|
Lightwater Member Since: 21 Aug 2014 Location: Sydney Northern Beaches Posts: 4907 |
The maximum slope is probably around 15° full tare weight including maximum towing weight from a standing start. So for the Freelander 4505 kg from a standing start on 15°.
|
||
12th Sep 2018 3:14 am |
|
Worms Member Since: 31 Oct 2017 Location: Highlands Posts: 635 |
Thanks. I’ve not tried standing-start to crawl on 15%, I’m not sure the manual will handle that. The anti-stall seems to need to sense the situation for itself, and even on the flat needs very sensitive clutch work to pick up properly. Since crawl is at about 800 rpm on mine, doing the hill-start with the micro clutch adjustments would probably be into smelly-clutch territory. Getting down to crawl from having accelerator input, without a complete stop, is not easy, so it is also quite tricky to drop from normal hill-start down into crawl. It doesn’t seem to crawl in reverse nearly as well, I guess the reverse ratio must be higher than first? 2005 D3 2.7 Auto
|
||
12th Sep 2018 5:03 am |
|
Lightwater Member Since: 21 Aug 2014 Location: Sydney Northern Beaches Posts: 4907 |
A few years ago trying to get out of a caravan park at Lago di Garda with relatives we cooked the clutch. It was not that steep but with 3 people pushing we just got out. Procrastination, mankind's greatest labour saving device!
|
||
12th Sep 2018 5:43 am |
|
MRRover75 Member Since: 13 Jan 2017 Location: Sandnes Posts: 327 |
Crawling at 800rpms with a manual? is that possible? Max torque is achieved around 1600-1800rpms, so operating in this range in 1st gear would be the optimal crawl/offroad speed. Am I wrong here? Going slower need riding the clutch, and that will ruin the clutch pretty fast...?? |
||
13th Sep 2018 6:48 am |
|
dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 |
I remember reading somewhere that LandRovers are supposed to be able to start on a 1 in 3 (or 4?) hill. Apparently it was one of the issues when BMW owned them in that the BMW engineers couldn't understand why it was necessary, the answer "because it's a LandRover". 3 x FL1 2 manual + 1 auto
|
||
13th Sep 2018 8:38 am |
|
MRRover75 Member Since: 13 Jan 2017 Location: Sandnes Posts: 327 |
Simple question: How is the best way to get up this hill with a manual without stalling the engine and/or ruin the clutch? Going in the so called "crawl mode" mentioned here would just stall the engine. There is not enough torque to get things going at 800 RPM`s. Correct me if I am wrong
|
||||
13th Sep 2018 10:50 am |
|
Lightwater Member Since: 21 Aug 2014 Location: Sydney Northern Beaches Posts: 4907 |
Pray that you still have inflated tyres at the top!
|
||||
13th Sep 2018 11:15 am |
|
dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 |
That FL1 looks to be doing OK although I did notice when I had one that first gear was very low to make up for lack of lo-range box. FL2 gearing in a manual was not as low as far as I recall. 3 x FL1 2 manual + 1 auto
|
||
13th Sep 2018 11:39 am |
|
MRRover75 Member Since: 13 Jan 2017 Location: Sandnes Posts: 327 |
Hi, I have driven up that hill 4 times now together with the local LR club. It went pretty well and tires are all OK. My technique is to stop at every level "flat", study the terrain towards the next "flat" and plan the route. Then when the course is clear, release the clutch fully and aim for the planned route with the RPM at around 1800 to have max torque. Things are then going a bit fast, but this works! The FL1 in the picture overheated where it stands. The driver did not use my technique and ride the clutch to much. It smelled bad. It had to be towed aside by a V8 Defender. The old series LR which you can see in my mirror just crawled up easily all the way as it has the low range box. Here is a video, showing the terrain our club has access to: |
||||
13th Sep 2018 12:26 pm |
|
RogB Member Since: 16 Dec 2014 Location: Mansfield Posts: 3880 |
my first ever 4x4 was a MK2 Frontera 2.2 DTi Limited. Manual 5 speed box, on the fly switchable 4x4, and a low range box.
|
||
13th Sep 2018 12:54 pm |
|
MRRover75 Member Since: 13 Jan 2017 Location: Sandnes Posts: 327 |
That is correct! I guess that is the main reason why the FL 1 and 2 are seldom seen when the big boys are out playing D: |
||
13th Sep 2018 1:19 pm |
|
RogB Member Since: 16 Dec 2014 Location: Mansfield Posts: 3880 |
the group I used to go laning with used to split into 2 separate groups, the soft roaders who did the less challenging lanes but still pretty tough in places (Freelander, Japanese, Korean etc) and the big boys (uprated and standard Japanese stuff, Defenders and D2) who did the big boulder crawling stuff like Stanage Edge
|
||
13th Sep 2018 2:04 pm |
|
Worms Member Since: 31 Oct 2017 Location: Highlands Posts: 635 |
It’s completely possible! I’m not suggesting it is the best option for all surfaces or situations, and if you are needing more torque, then yes, a higher rpm would be needed. But in first gear (actually in any gear) with your feet off everything, the car’s electronics are pretty good at preventing a stall. In some situations, because the FL2 has quite a high first gear, I find 1600-1800 revs is too fast a road speed for manoeuvring. Letting it work away on its own means that there is no need to ride the clutch and less risk of clutch damage - I assumed this was a design feature and part of the learning curve in moving from a low-ratio and diff lock situation over to electronic bells and whistles? It does seem to need to know that it is being asked to do this, though, so unless you let it pick up on its own from rest, you need to ease it down to the crawl revs with a bit of clutch use. Interestingly, though, the engine is not at tick-over revs, but somewhere about 80-100 rpm above resting tickover. 2005 D3 2.7 Auto Previously: 2010 MY FL2 TD4e GS - Now gone at 199,500 miles, about 135,000 of them mine. ‘93 Defender 110 200TDi CSW ‘87 Defender 90 4 cyl Petrol ‘83 110 CSW V8 - best ever! Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch) Series III SWB Diesel |
||
14th Sep 2018 7:14 am |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis