aircobra Posted March 20, 2017 Share Posted March 20, 2017 the story is that in the most rusty z in the galaxy( that;s my car), even the little tab in the rear quarter window has rusted odd. has anyone attempted to fabricate and weld one on? i can't workout if there are sstainless or chrome plated frames? https://www.autopartone.com/products/72-73-datsun-240z-oem-rear-quarter-window-glass-left are they brazed on? thanks Quote Link to comment Share on other sites More sharing options...
Riceburner Posted March 20, 2017 Share Posted March 20, 2017 Is it the screw in bracket inside the bottom of the stainless quarter window frame? I had bugger all rust in my car but that steel cad plated bracket was toast, I internally tig welded the corner of the stainless frame and got rid of the bracket all together. The upper one is still in place as it was in very good condition. Quote Link to comment Share on other sites More sharing options...
aircobra Posted March 20, 2017 Author Share Posted March 20, 2017 i think there 's 3 of them , all for holding in the frame from the inside https://cdn.shopify.com/s/files/1/0743/9051/products/20150812_094551_large.jpg?v=1442269121 what material is the frame? looks like it was plated and then welded on. which means the plating got burned off and they started rusting on day #1 Quote Link to comment Share on other sites More sharing options...
Riceburner Posted March 20, 2017 Share Posted March 20, 2017 Ah ok those ones. The frame is stainless steel, are the brackets not the same? Quote Link to comment Share on other sites More sharing options...
aircobra Posted March 20, 2017 Author Share Posted March 20, 2017 if they're rusted off, i figure not .... can you mig wed the bastards on? Quote Link to comment Share on other sites More sharing options...
gilltech Posted March 21, 2017 Share Posted March 21, 2017 (edited) Ditto Gareth J, they were electroplated steel, screw fixed to the stainless steel frames as staking angles to hold the mitred corners together, just like with picture frames. Dumb idea, mixing two different materials. Even on cars without rust issues the lower front corner ones will eventually rust (water gets into the mitre joints as they are unsealed) therefore they blow up & expand & force the mitred joints apart. Remove them, make up fresh new ones in galv or SS & install them so as to pull the mitres tight together. Paint them heavily in POR-15 or cold galv or whatever, & seal up the frame joints, before reinstalling the windows, & they should be good for many years to come. I wouldn't weld them as I'd want to be able to disassemble the frames if I needed to in the future. Edited March 21, 2017 by gilltech Quote Link to comment Share on other sites More sharing options...
aircobra Posted May 9, 2017 Author Share Posted May 9, 2017 ended up buy $5 stainless brackets from bunings, then tapping some holes in them , some stainless countersunk screws. a bit of bending ... job done Quote Link to comment Share on other sites More sharing options...
aircobra Posted May 9, 2017 Author Share Posted May 9, 2017 why bother with plated ones? you can see how exposed that corner is to the weather. just bad nissan engineering, saving 50c ( or less) on a bracket Quote Link to comment Share on other sites More sharing options...
Riceburner Posted May 10, 2017 Share Posted May 10, 2017 (edited) These were the brackets you were originally asking about (pic attached). They look stainless to me, perhaps the welds were mild steel and that's why they rusted? As for the other frame brackets, the welded lower 90degree corner still allows for the window to be easily disassembled. Even if you did things the same as the factory using dissimilar metals they'll still last another 40yrs. Edit: won't let me load the picture Edited May 10, 2017 by Gareth. J. Quote Link to comment Share on other sites More sharing options...
d3c0y Posted May 11, 2017 Share Posted May 11, 2017 I just tig welded my frames together FWIW. Quote Link to comment Share on other sites More sharing options...
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