Dakar 4wd Unbog Tricks
Submitted: Friday, Jan 14, 2011 at 08:17
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Robin Miller
Watching Dakar the other day and saw a cute device used by the Volkswagon team to get out of deep sand bog , anyone else seen or used this ?
As the car bogged on a ridge the co-driver got out and quickly slid off cover plates on the floorplan below the B pillar - then to my surprize what appeared to be a hydrualic ram built into the B pillar area extended itself , as it came down a plate was quickly put on the sand under it.
Apparently there is one each side , and all off a sudden the car had jacked its whole body up and clear of the sand.
Sort of like twin air jacks - looked pretty slick actually.
The other one - which I understand is more common , is rather than have a
snorkel , there is a manually operated flap valve under the bonnet , and if water looks deep etc, this is operated and closes the air intake and opens an intake connected via the firewall into the cabin.
Reply By: Member - Jack - Friday, Jan 14, 2011 at 08:51
Friday, Jan 14, 2011 at 08:51
Hi Robin:
I did not see the Dakar, but I recall watching the V8 supercars racing on tv a qhuile ago and they had 4 jacks fitted, so that when they pitted, they activated the jacks and the car was lifted for quick tyre changes. My son thinks that has been declared illegal (but is not sure), but I remember thinking how useful it would be in a 4WD context (to have two jacks) for bogs and flat tyres etc.
It's obviously do-able, but I could not imagine the cost.
Cheers
Jack
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Follow Up By: landseka - Friday, Jan 14, 2011 at 10:29
Friday, Jan 14, 2011 at 10:29
Hi Jack, (don't yell that at an airport!)
Those air jacks are still very much a part of V8 motor racing. The jacks are air operated via an external (Pit Garage) air supply.
It is compulsory for a car to be raised on the jacks whenever it is being worked on in pit lane for the pit crew safety.
Cheers Neil
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Follow Up By: Member - Jack - Friday, Jan 14, 2011 at 18:51
Friday, Jan 14, 2011 at 18:51
Thanks Neil. I wondered about that and just thought they had some onboard hydraulic or electric setup. That all makes sense now. Appreciate you explaining it.
Cheers
jack
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Reply By: MrBitchi (QLD) - Friday, Jan 14, 2011 at 08:57
Friday, Jan 14, 2011 at 08:57
They are built in jacks like the V8's use but they only have one on each side. Same jacks they use to change tyres etc. Obviosly someone has use the "2 uses" rule when they designed them ;-)
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Reply By: Member - DickyBeach - Friday, Jan 14, 2011 at 09:56
Friday, Jan 14, 2011 at 09:56
Firstly, the isn't the Dakar fantastic viewing and through remarkable country. That and the Tour de France make for fabulous armchair travelling.
As to the hydraulic jacks, my Dad's 1947 MG "Y" had them built in - one pair at each of the front and rear and could be operated as front or rear or both.
If it was economical for MG to do that 60 years ago what a pity today's manufacturers could also provide them as options.
Cheers,
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Follow Up By: ob - Friday, Jan 14, 2011 at 13:33
Friday, Jan 14, 2011 at 13:33
Yep, a mate of my Dad (now both sadly deceased) had a 1940 something Austin 16 with on board hydraulic jacks front and rear driven by a pump similar to a power steering pump.
Made tyre changing real easy
ob
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Follow Up By: Member - Warren R- Karratha - Monday, Jan 17, 2011 at 23:34
Monday, Jan 17, 2011 at 23:34
G'day OB. Three or four of us bought an old Austin 16 for a bush basher when we were teenagers in the 60s. I remember thinking how flash it was with the built in jacks and leather seats.....wish I had it now
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