Thread: Chassis strengthening

If u fully weld a chassis it could bend out of shape due to heat and stresses. Thats why they stitch weld

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Make your templates out of cardboard first for a perfect fit - cutting cardboard is easier than trimming steel.
An easy way to transfer the pattern to steel is to lay the template onto the steel then spray paint it with a rattle can.

Another reason for stitch welding is if a crack forms it will only run the short length of that weld VS the full length if fully welded.

I disagree with 67hardtop - If done properly and taking your time and running short welds, alternating from one side of the chassi to the other - you could fully weld the chassi without "warpage"

Have already made them. Will weld on this weekend. Was just curious as to why LRA did theirs that way.

I was only suggesting u dont fully weld all one side at once. As the other poster said a short weld on one side and then on the other side, alternating ur welds will not stress the chassis too much. Ive seen the results of someone welding all on one side only. The results were not good. The chassis had to be scrapped. Not a land rover but another brand. Weak chassis. Anyway its just my opinion. Do what ever you feel is right.

Cheers Rod

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Will adding stiffness to the chassis have any adverse effects ? , i know rover chassis's are stiffer than jap vehicles by design.

If it ain't broke don't fix it. I am no veteran but I don't hear too often that the defender needs a stronger chassis. You might increase strength in one part but bound to introduce a stress in another or make a localized point for failure by welding. I would get it dipped and galvanized.

Originally Posted by manofaus

If it ain't broke don't fix it. I am no veteran but I don't hear too often that the defender needs a stronger chassis. .....

I'm not sure we are talking about a Defender - the link in the first post refers only to D1 and Rangerover. There have been problems with 130 chassis, but they seem mostly to relate to either poorly fitted trays and/or gross abuse.

I suspect the strengthening plates in the link are intended for highly modified vehicles that are being used way outside the design parameters.

John

Correct john, its in a range rover, with 4bd1t etc...so whilst the body is off and the engine out, why the hell not hey