These were altered from two plain pipes that ran up the inner ends and joined into one box just below roof height into two straight pipes with an additional silencer.
In a period from about 1968 to the early '70s gangways were fitted to the WR sets (as well as doors through the internal partitions where required). It is almost certain that the vehicles were painted into blue at the same time.
The Tyseley based sets were generally not gangwayed until the withdrawal of the older asbestos contaminated TC vehicles in 1982/3 when these 127 (and 101) trailers were substituted.
In August 1983 a modification programme began on twenty pairs of Tyseley’s 116s, to add the gangways. This was due to a requirement for more through gangwayed sets for the increasing number of paytrain services. The work was being done at Carlisle Currock C&W repair shops, and involved cutting a gangway aperture in the car ends, after removing the interior against it, moving a piece of ‘H’ section framing to above the hole, fitting newly made gangway hanger brackets, and gangway connections and doors recovered from withdrawn Class 120 trailers. The image here of 59032 shows the gangway.
The DMBS already had access through the interior partitions but the DMS had to have doors made in their two bulkheads. Although intended to work with Class 127 trailers displaced from Bedpan services, the first four pairs were back in traffic in late Nov. ‘83 with redundant ER 101 trailers.
TS 602 51133 59533 51146
TS 604 51129 59570 51142
TS 605 53851 59527 53904
TS 607 53862 59107 53872
The next sets were being converted at the end of 11/83, being TS 520 (53827 & 53880), and 51131 & 51134, as well as the first 127 trailers.
Here are details of one of the many other modifications made to the class, detailed in a LMR Traction Bulletin (Issue 34 - September 1982)
Details about preserved Class 116s can be found here.
Thanks to Mac Winfield, Ian Fleming and John Thomlinson for much of the information on this Class.