Bachmann OO Class 40 diesel - older 8pin version

Kit: MX645R; Rail Exclusives 26X20X08-1W Baby Boomer

The 8pin version of Bachmann's Class 40 is a relatively basic design internally. There isn't much spare available for a decent speaker, so we decide to mill some of the chassis to make room for a Baby Boomer.

Paul didn't have access to a milling machine, so a good old-fashioned manual approach was taken...

Just to compensate for some of the removed weight, liquid lead was put into the fuel tank.

The speaker fits across ways, under the fan, so easy escape for the sound, but the chassis cutting had to be sufficiently deep to leave the fan assembly intact.

Photos and approach courtesy of Paul Scrivens

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.