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I think you will need to find some space on the underside of the chassis where the new caps will physically fit & where you can find some way to tie them down. (you shouldn't just let them hang) You could use a wire tie to secure the cap. If the cap should be grounded you can run the ground end of the new cap to the nearest good ground, there should be many good tie points on to the chassis. Install a terminal strip in a convenient location to both the new & old caps. Now move all the wires, resistors, etc. from the old cap to one of the tabs on the terminal strip. Finally, connect the new cap there & solder it up. It can get tricky, for sure. Space can be a problem; wires might not reach where you need them to and may need to be re-routed or extended. Often if there is a resistor connected to one of the caps it won't be worth trying to save & you should just install a new one. You can get many sizes & styles of terminal strips-some have a grounded post in the middle; there are ones with 2, 3, 4, however many tabs you need. Sometimes you can move all the new caps to one strip, if there is room to get everything in there close. You have to be real careful that you don't get your wires crossed up while doing this-good idea to switch one a time, solder it & everything, so you can't get it messed up. Remember that on most can caps there is no negative wire-the can is the negative side; if the negative side is supposed to be connected to ground it will be firmly mounted to the chassis & soldered as well. Careful-not all of these caps will have their negative to the chassis. These will use a piece of phenolic that the can is mounted to so it is insulated from the chassis, and the can will be connected by wire to wherever it needs to go.
Double check your work, be sure there are no crossed wires or bad connections, and be sure you have the polarity right on the new cap. Installing the new cap backwards might be the worst thing you could do! If I got any of this wrong somebody will correct me...I had to learn most of it by myself & I have screwed up plenty!
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Bryan
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