voltron_boi Posted February 19, 2014 Share Posted February 19, 2014 My cousin have a 240z and he doesn't like his sun roof, his freind has a 240z that he longer need. He wants to know what's the best way to removing the sun roof. Should he patch or should he just cut the one that his friend has. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted February 19, 2014 Share Posted February 19, 2014 The best way would be to cut the roof off the non sunroof. But if your friends 240z is salvagable and he's trying to sell it then cutting the roof would basically turn to scrap. Quote Link to comment Share on other sites More sharing options...
OldAndyAndTheSea Posted February 19, 2014 Share Posted February 19, 2014 (edited) Why not cut and swap the roofs completely? If it were my car, that's what I'd do. Patching, unless done extremely well, will be difficult to restore the gentle curvature our rooflines have. Not saying it can't be done, but get a GOOD body guy. I'd cut the non sunroof roof section, cut at the a pillar, and the lead seams in the rear, then swap. That's what I believe would yield the best results, in my opinion. EDIT: Haha, Blu, Jinx! Edited February 19, 2014 by OldAndyAndTheSea Quote Link to comment Share on other sites More sharing options...
cgsheen Posted February 19, 2014 Share Posted February 19, 2014 We just did that to our '72 240 in the shop. Our first foray into cutting an entire roof off a donor, drilling all the spotwelds, melting the lead at each pillar, cutting the welds at the corners and separating the roof skin. Not for the faint-of-heart, but definitely do-able. The right tools help. And, there are some great guides by guys who paved the path. Bone up on everything required and which side to drill spot welds on which piece. You can have a replacement roof that almost looks like the factory installed it. They're right that a "patch" is extremely difficult to get right. Quote Link to comment Share on other sites More sharing options...
nix240z Posted February 19, 2014 Share Posted February 19, 2014 We just did that to our '72 240 in the shop. Our first foray into cutting an entire roof off a donor, drilling all the spotwelds, melting the lead at each pillar, cutting the welds at the corners and separating the roof skin. Not for the faint-of-heart, but definitely do-able. The right tools help. And, there are some great guides by guys who paved the path. Bone up on everything required and which side to drill spot welds on which piece. You can have a replacement roof that almost looks like the factory installed it. They're right that a "patch" is extremely difficult to get right. This is exactly the way I replaced my roof skin. Quote Link to comment Share on other sites More sharing options...
Naptown Dave Posted April 2, 2014 Share Posted April 2, 2014 I patched mine and it turned out okay, not great. I still have some hammer and dolly work to do but think I will end up with an oilcan problem that may take a stiffener spot welded inside the roof to fix. Quote Link to comment Share on other sites More sharing options...
fly-s30 Posted April 3, 2014 Share Posted April 3, 2014 I patched mine and it turned out okay, not great. I still have some hammer and dolly work to do but think I will end up with an oilcan problem that may take a stiffener spot welded inside the roof to fix.Speaking from experience, this is absolutely correct. Seeing the thickness of the steel, and amount of welding that goes in, it has shrunk certain areas and has caused oil canning behind the patch, seeing the roof flattens out somewhat in the area behind the drives head. Dolly work was needed and that took the best part of a whole day. In retrospect replacing the roof skin would have been a much better option in terms of retaining the shape. Although it would have taken longer, a cleaner result would have been far easier to archive. I am also considering a stiffener if shrinking the oil canning doesn't get the results needed. Quote Link to comment Share on other sites More sharing options...
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