At first sight converting this to P48 and adding a sound decoder seemed relatively straight forward, sadly it didn;t quite turn out that way.
The easiest bit was the conversion to P48, right o way does some very nice wheels for these later overland models that have 3mm axles.
Here are 2 of the gear boxes with the new wheels pressed on. The other nice improvement over earlier models is the addition of roller bearings on the axle ends and in the gearboxes.
I added fresh grease and everything went back together fine. This model is now 30 years old.
To install the speaker and decoder you need to create a platform above the motor and drive mechanism. I decided to print one as the weather was a bit warmer. Fortunately this doesn;t need to be that accurate as you can see it has lifted at the right hand end on the build plate.
It works well enough and goes in like this
That's a big speaker, it unfortunately doesn't fit it's too wide.
So having got everything wired in I went to put it all back together to find that the body opening wasn't the same as the foot plate, oh shot !
So back to the drawing board for a new platform, and the decoder needs to be mounted vertically
So now it's all back together and runs really well the ditch lights flash on F14. I just need to make a new windscreen
