Here are some pictures of what is in there.
Some put the coil in the freezer to get
the tar hard and chip it out. I never could
get the wires clean enough to solder them.
Tar would start running from the heat.
That’s me though. Others have done it.
I use to take them out and clean them up
but that’s such a PITA and they don’t always
like that. I would end up going through
all that crap for nothing. The You Tube
link at the bottom is what I do now so
you have options. The other link explains
how the timer operates.
https://www.youtube.com/watch?v=e2vxDqF_OEU
https://www.youtube.com/watch?v=zLS6IglCy9k
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.