Part 2Removing the panel between the cabin and the fuel tank wasn’t so difficult: the computer box had 4 nuts holding it in place and the metal can could be sprung out of its mount.
With the panel on the workbench I could see in more detail what needed to be done. First this elliptical bit of ply had to be removed.
With a bit of persuasion it came away, leaving the 4 captive bolts in place. I then made a new mounting plate from MDF, edged with strip to hold the speaker baffle away from the mounting plate.
I had to cut the captive bolts down by 4mm as otherwise they would get in the way of the new speaker mnting bolts holding the speaker to the new rear pannel. This shows the speaker was correctly mounted from the inside.
And then the two parts assembled!
Repeat for the other side.
With the speakers now mounted and the rear pane re-fixed, this time with the correct number of screws, I could start to clean up the inside. This is the result.
OK, it wasn't really necessary to detail this area as no one can ever see it, but I know it is now as it should be! Compare with the photo in the first part of this story.
So, what do the new speakers sound like? A big improvement: much more bass, no distortion even if turned up enough to hear the radio at 60 mph. I’m pleased!