Exhaust port cones
#1
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Exhaust port cones
What's the best way to remove exhaust port cones? I have never done this and I was told they can be swapped out. Any help would be appreciated.
#3
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^Yep, two roll pins, if you have access to a welder and Welding pliers(locking channels, vise grips?) try this technique...
Preform a spot weld onto the roll pin. Don't worry, it will only fuse to the metal pin, and not the aluminum housing; use the pliers to grab hold of the weld, twist it counter-clockwise or clockwise, and pull out. You can re-use the roll pin if you grind off the weld.
But if your welder didn't work like mine after countless tries, or you can't find one, you have other options that I wouldn't reccommend at first. You can use a tap and die set to create threads for a screw to fit into the roll pin and then yank it out(very exhausting). Or if you have a drill, a dremel, or a die grinder, you can grind them out(very teadous). A local hardware store should be full of new ones.
These are if you plan to re-use the exhaust sleeve(cone?).
Now, if you plan to swap them out, you can use a screwdriver that can fit into the hole and a die grinder(or dremel) to just grind out the exhaust sleeve and push the pin out throught the new hole you created.
https://www.rx7club.com/showthread.p...sleeve+removal
https://www.rx7club.com/showthread.p...sleeve+removal
Hope I helped!
Preform a spot weld onto the roll pin. Don't worry, it will only fuse to the metal pin, and not the aluminum housing; use the pliers to grab hold of the weld, twist it counter-clockwise or clockwise, and pull out. You can re-use the roll pin if you grind off the weld.
But if your welder didn't work like mine after countless tries, or you can't find one, you have other options that I wouldn't reccommend at first. You can use a tap and die set to create threads for a screw to fit into the roll pin and then yank it out(very exhausting). Or if you have a drill, a dremel, or a die grinder, you can grind them out(very teadous). A local hardware store should be full of new ones.
These are if you plan to re-use the exhaust sleeve(cone?).
Now, if you plan to swap them out, you can use a screwdriver that can fit into the hole and a die grinder(or dremel) to just grind out the exhaust sleeve and push the pin out throught the new hole you created.
https://www.rx7club.com/showthread.p...sleeve+removal
https://www.rx7club.com/showthread.p...sleeve+removal
Hope I helped!
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#6
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I will try it with the welder, I have a junk housing to experiment with. I have a few pairs of good Cosmo re housings that are sitting around I need to add them to my good stock.
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#10
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I have a couple of pairs of cosmo housings that I want to put 3rd gen cones in. Building a back up turbo motor and don't want to buy housings.
Last edited by rotarysuzuki; 08-26-10 at 08:20 PM. Reason: Add to post
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