As Landover states the recovery eyes are for on road recovery only weather they call it a point or eye doesn't change the fact that they were never designed as off road recovery points or eyes as clearly pointed out in previous post .
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As Landover states the recovery eyes are for on road recovery only weather they call it a point or eye doesn't change the fact that they were never designed as off road recovery points or eyes as clearly pointed out in previous post .
I agree that these factory towing points are NOT Recovery points and would doubtfully withstand the forces involved in a "Snatch" recovery.Quote:
Originally Posted by laney
However they are designed to enable the vehicle to be "Towed" So using this as an anchor point when doing a double line pull with a pulley block/snatch block is acceptable as far as I am concerned.
Did we forget resistance in our physics equation? [emoji41]
Resistance can change so there is a variable.
And a double line pull can see a force of much higher effort than a factory point may have been designed for.
Assume the tow point is to tow a D2 up a smooth road onto a tilt tray fully laden then it is suitable for 3t.
A double line pull with a powerful winch in a sticky bog with the vehicle hooked on a rock could see 6t of effort induced.
Is that point rated to 6t [emoji6]
Rated by whom? A testing laboratory?Quote:
Originally Posted by laney
Hi Trout. I recall reading about the tow point in 2002 when I purchased the d2. I can still picture the manual showing how to remove the cover from the front skirt (bumper) and enabling access to the point. I went and looked at the point. It didn't take long for me to think of it as light duty.
Cheers
Good point. I assume these would be like the 4x4 Intelligence ones that weighed a kg or so each. Bloody strong and allowing for high tensile bolts through chassis would be many times stronger than the stock large straw size steel welded on single recovery point. Then you take into account there are 2 of the aftermarket ones to enable a bridle and each cops a lot less force than a single factory point. CheersQuote:
Originally Posted by p38arover
I upgrade the front recovery bolt to 12.9 instead of 8.8
I have attached some photos of me rescu8ng a patrol.
The patrol is fully modified close to 4 ton yet driven an idiot who happens to be my friend.so in the middle of the night, I went save him.
I anchor my defender with an winch extension strap to a huge tree and use two block to pull the patrol out of that bog hole.
The pulling force is so strong, all four wheels on my defender were off ground. The truck was suspended in the air for a while.
I don't know if this will do some damage to the chassis but needless to say, I won't do it again.
I think this will be my prefered way for a recovery.
Beef up the recovery point by upgrading the high tensile bolt.
Use both recovery points.
Use a winch
But next time I shall only recover human being, but their cars...
Attachment 138194
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Attachment 138197
It would have to be a VERRY powerful winch to be able to pull 6T and it is doubtful that ANY recovery point will survive that sort of force.Quote:
Originally Posted by Tombie
The average winches fitted to most 4WD's are 8000lb-12000lb or 3.5T-5.5T and that would be when the winch is using a 1st layer pull.
In most occasions only 10M-15M of rope is used that leaves 2-3 wraps still left on the drum so there is usually only 2T-3T of pull available even when using a 12,000lb winch.
Remember you are not trying to Lift 3T of vehicle off the ground you are dragging it along the ground So 6T of force isn't usually necessary.
I don't know much about bolts.
But I think
8.8 mean 8*100n/m² *0.8
12.9 mean 12*100n/m²*0.9
So 12.9 bolts almost twice as strong as the factory 8.8 high tensile.
The chassis will gradually tear before anything snap.
