WP BD 24" Wide Thin-Twin
These are fairly easy to service machines without moving them out of the closet etc. One piece stack laundry appliances like these are generally much more serviceable, easier to install and more stable in operation than when you stack two separate machines. I work on at least 5 of these machines every week.
To service the washer in the 24 and 27" WP built TTs you first remove the slanted transmission panel below the dryer, then remove the washers top and take out a few screws and remove the complete front of the washer.
Now you can easily access the water pump, drive coupling or belt, inlet water valve, motor on the DD models etc. For more serious repairs you remove two 1/2" bolts and the whole washer assembly can be easily pulled out of the cabinet to work on or replace clutches, transmissions etc.
The drive mechanism from the faster spinning BD 24" machines cannot be easily adapted to the full size BD WP washers. I have been involved with several attempts to make standard BD WP washers spin faster. When you get up to a decent spin speed of around 700 RPMs the machine will walk all over the place, My friend Bob in Cleveland has one now that he literately had to bolt to the floor. The suspension design of standard WP BD washers while very rugged and generally trouble free was just not designed to contain and control vibration well at spin speeds above around 550 RPMs.
John L.