Vehicle & Technical > Range Rover
tank guard
Range Rover Ron:
I fitted a Guardian tank guard to my RRC, I had the same situation with the front holes,
as our friend says, if you do not do "extreme" then the front holes do not need to be bolted down.
There is enough support and strength in the rear mount points to hold the tank guard in most off road situations.
Cheers................
Jonny Boaterboy:
I have just fitted the southdown tank guard and have developed a violent banging at certain speeds when towing the trailer unloaded. I think I have narrowed it down to the fact that the front of the guard is not flush/tight against the chassis crossmember I did jack it up so it was tight when fitting it and when drilling the holes, but after having a look I found that there was a small gap of about 4-5mm which I think was allowing the guard to bang against the crossmember as it flexes due to the trailer bouncing around. I have jammed a bit of rubber in the gap and jacked it up flush against the rubber/crossmember and it had made it a bit better but still not great. So I was thinking of using the holes at the front of the guard to try and stop all movement. Do you just drill a hole through the chassis? Will that weeken the chassis? how do you reinforce it? do you just weld a plate on the outside?
sorry to jump in on your thread Jimbobly, if you haven't fitted yours yet, when you do make sure it is tight against the chassis crossmember and fully tightened on the rear crossmember before you drill the centre holes..... if you haven't got the holes allready!
Thanks
Jonny
Bowie:
To reinforce the chassis you would need to put crush tubes in to stop the chassis from distorting (as mentioned above).
Check the exhaust for contact with the guard, mine is very close. Also if you have a rear diff guard there is barely any clearance between the front of the guard and the cover...
I wouldn't immediately assume 6mm + 10mm steel is flexing to cause a violent banging noise at all.
JIMBOBLY:
--- Quote from: Jonny Boaterboy on October 08, 2009, 00:16:00 ---I have just fitted the southdown tank guard and have developed a violent banging at certain speeds when towing the trailer unloaded. I think I have narrowed it down to the fact that the front of the guard is not flush/tight against the chassis crossmember I did jack it up so it was tight when fitting it and when drilling the holes, but after having a look I found that there was a small gap of about 4-5mm which I think was allowing the guard to bang against the crossmember as it flexes due to the trailer bouncing around. I have jammed a bit of rubber in the gap and jacked it up flush against the rubber/crossmember and it had made it a bit better but still not great. So I was thinking of using the holes at the front of the guard to try and stop all movement. Do you just drill a hole through the chassis? Will that weeken the chassis? how do you reinforce it? do you just weld a plate on the outside?
sorry to jump in on your thread Jimbobly, if you haven't fitted yours yet, when you do make sure it is tight against the chassis crossmember and fully tightened on the rear crossmember before you drill the centre holes..... if you haven't got the holes allready!
Thanks
no worries mate,thanks for your input :D
Jonny
--- End quote ---
Range Rover Blues:
To reinforce any mounting point through the chassi try the following.
Drill right through both sides of the chassis (the tank gaurd is 10mm IIRC) to line up with the accessory or whatever.
Drill the outside of the chssis or whichever side faces away from the accesory to a larger diameter that allows you to insert a short length of tube. The tube needs to be cut flush with the chassi once installed (or slightly short) and the bolt needs a lrge spreader or repair washer to extend well beyond the outside of the tube.
This is how towbars are often fitted to box section chassis on monocoque shells. The inner wall of the chsssi is taking most of the load, the outer is preventing twisting and supporting load in one direction (often the weight of the trailer on a towbar). If you want a more secure mounting then make the tube longer so that it protrudes by 10mm or so and once assembled with the bolt just nipped up, weld the tube into the chassis.
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