Cheesymamba Posted January 21, 2021 Share Posted January 21, 2021 I rolled my Z a few months ago and the roof is caved in. I have a line on a replacement roof but I have no idea if replacing it would compromise the structural integrity of the chassis. I was wondering if it was worth it to try and repair it or if I'm better off just finding a new chassis. The car has a lot of sentimental value to me and I'd like to avoid replacing it if I can. 1 Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 21, 2021 Share Posted January 21, 2021 (edited) It's cutting and welding. It should be as strong as the original, which, obviously, is not very strong. Many people have replaced the complete roof, cut at the pillars, to get rid of a sun roof. Edited January 22, 2021 by NewZed 1 Quote Link to comment Share on other sites More sharing options...
rturbo 930 Posted January 22, 2021 Share Posted January 22, 2021 It doesn't look like the sides of the roof structure are bent, just the front upper windshield frame. I'm not sure how the structure goes together, but you could possibly remove that piece by cutting spotwelds, and welding in a new one. DCW Classic on instagram is going to be taking on a much more severely damaged car, so if you have instagram you may want to follow them, as they are going to be documenting the restoration. If I'm right, and the roof structure can be repaired in that way, then the rest of the repair should be pretty similar to a typical roof reskin. Also, for the record, the correct way to remove a sunroof is by replacing the skin, as has been documented a few times here and on classiczcars.com, not by cutting the pillars and welding a new roof on. The pillars have multiple layers of metal in them, and if you just cut and paste, you wont be able to reweld the inner layers, and the structure will be compromised. As far as I'm aware, if you do cut at the pillars, you want to cut in sort of a Z shape the same way you would if you were to section a truck frame, so that there isn't just a single weld joint in a flat plane. But I don't think you'll have to do that if the damage is what it appears to be in the photos. Quote Link to comment Share on other sites More sharing options...
jhm Posted January 22, 2021 Share Posted January 22, 2021 If you don't mind sharing details of the accident, I'd be really interested to know more about the specifics. That car looks amazingly good for having been rolled! Quote Link to comment Share on other sites More sharing options...
JMortensen Posted January 22, 2021 Share Posted January 22, 2021 Some people cut the roof off and reattach to do roll cages. That kind of thing would completely fix your car. Quote Link to comment Share on other sites More sharing options...
Cheesymamba Posted January 22, 2021 Author Share Posted January 22, 2021 Thank you all for the responses. It seems that the passenger side a pillar is slightly tweaked, judging from the door fitment but only by a couple mm. So it could probably be bent back into shape without fatiguing the metal. As for details of the crash I was driving in the rain going about 45 locked the brakes up trying to make a turn and slid off the road. I managed to decelerate most of the way before I went off but since there was a hill the tires caught in the mud and gravity pretty much flipped it. Luckily most of the weight landed on the roof instead of the hood and the inner fenders are undamaged as far as I can tell the splitter I had on the front seems to have taken most of the damage to the undercarriage as well. Mechanically it's pretty good apart from the combustion chambers filling with oil. Quote Link to comment Share on other sites More sharing options...
grannyknot Posted January 23, 2021 Share Posted January 23, 2021 I think your A pillars will be okay with some tweaking, and it would be easier to just replace the skin, the place you may run into trouble is the front frame structure under the roof skin just above the windshield and between the A pillars. The biggest problem with trying to bend that back is if it isn't perfect the windshield seal will leak. If you do find a good roof skin for sale you might try getting the whole roof structure then after removing the skin you might be able to use that center front piece to replace your bent one. Quote Link to comment Share on other sites More sharing options...
Glenn Posted February 5, 2021 Share Posted February 5, 2021 Realize I am late chiming in here, but what the heck. What Grannyknot said is correct, and right on the money. The metal directly above the rear view mirror is critical. I don't know if you are planning to do any of the work yourself but if so I would strongly suggest taking the car to a trusted body shop and have them put the car on a frame machine and having the roof straightened as best possible BEFORE ANY SHEET METAL IS REMOVED! Do not cut anything without having this done first! The right side A-pillar will come back to its correct position if the shop knows what they are doing. Think of it this way- the roof was bent as a welded structure, therefore it needs to be "unbent" as a welded structure as much as possible BEFORE any metal is cut off. Get it as straight as possible, then remove the skin only, then replace the center middle section (if you have to) and go from there. And for what it is worth, the skin will only need to be welded at the A pillars and just above the quarter glass where it meets the quarter panels. Ask the shop to use panel adhesive on the sides. Easier for them and every bit as strong as welding it. Its basically the industry standard now for replacing roof skins in the auto body industry. Just my two cents from 30 years of being a bodyman for a living. Good luck, its totally repairable. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.