I know it's a bit late, but in my defence I've only just joined! Regarding the Mk2 push-pull sets used from 1985-1990 on the Glasgow/Edinburgh-Aberdeen services I can provide the following information. Apologies if any of it has been mentioned above and I haven't noticed. Glasgow-Aberdeen went over to full push-pull operation from May 1985, with the Edinburgh services following in May 1986. While two of the Glasgow-Aberdeen and return services were operated by the Edinburgh-Glasgow Mk3 push-pull sets there were insufficient sets to permit all the Aberdeen services to be operated by the Mk3s and so the remainder were operated by Mk2 sets. The following coaches (not including the DBSOs which despite some remaining tread braked could appear on any set) were based at Craigentinny specifically for use in the Mk2 push-pull sets:
12 Mk 2d TSO (all in ScotRail livery)
5 Mk 2z TSO (ex-Edinburgh to Glasgow, all in ScotRail livery)
7 Mk 2d TSO(T) (6 in ScotRail livery, 1 remained in blue/grey for its entire existence on the push-pulls)
4 Mk 2e FO (all in ScotRail livery)
1 Mk 2f FO (in ScotRail livery)
2 Mk 2a FK (both in blue/grey)
Between 1986 and 1990 there were four diagrams for Mk2 push-pull sets on Glasgow/Edinburgh - Aberdeen services. While the formations were fairly fluid, with the addition/removal of a TSO or swapping of an air-con FO for an non air-con FK being the most common the basic formations were:
two sets of 5-coaches:
Class 47/7-Mk2d TSO-Mk2d TSO-Mk 2d TSO(T)-Mk2e FO-Mk2f DBSO
two sets of 6-coaches:
Class 47/7-Mk2z TSO-Mk2d TSO-Mk2d TSO-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO
The diagrams for the sets were as follows:
Diagram 1 (five-car set) -
1A41 01:10 Perth-Aberdeen arr. 03:16
1T10 07:00 Aberdeen-GLQ
1A59 11:25 GLQ-Aberdeen arr. 14:13
1T32 15:05 Aberdeen-GLQ
1A71 19:25 GLQ-Aberdeen arr. 21:13
1L32 22:35 Aberdeen-perth
Diagram 2 (six-car set) -
1T06 05:25 Aberdeen-GLQ
1A57 09:25 GLQ-Aberdeen arr. 12:13
1B32 12:40 Aberdeen-Edinburgh
1A65 16:55 Edinburgh-Aberdeen arr. 19:40
1B42 20:30 Aberdeen-Edinburgh
Diagram 3 (five-car set) -
5A43 04:45 ECS Craigentinny-Perth
1A43 06:25 Perth-Dyce
1T13 08:45 Dyce-GLQ
1A61 13:25 GLQ-Aberdeen arr. 16:13
1T38 17:05 Aberdeen-GLQ
1L51 20:25 GLQ-Dundee arr. 21:52
5L51 23:10 ECS Dundee-Craigentinny
Diagram 4 (six-car) -
1A55 08:30 Edinburgh-Aberdeen arr. 11:16
1T26 13:05 Aberdeen-GLQ
1A67 17:25 GLQ-Aberdeen
Between 1985 and May 1986 the Glasgow-Aberdeen Mk2 push-pulls also included a Mk1 BG coupled between the loco and push-pull rake. 5 BGs were specially painted in ScotRail livery for this use, they were all fitted with B4 or B5 bogies to permit 100 mph running. Mk3a sleepers also appeared in both the Mk2 and Mk3 push-pull sets working back to Glasgow QS locked out of use after operating the QS-Aberdeen sleeper the previous night. Some other sample formations I'm aware, to illustrate how varied the Mk2 sets could be, follow here:
Glasgow-Aberdeen
Class 47 (Railfreight Distribution)-Mk2z TSO (ScR)-Mk2d TSO (ScR)-Mk2d TSO(T) (ScR)-Mk2e FO (ScR)-Mk2f DBSO (ScR0
Glasgow-Aberdeen
Class 47/7 (ScR)-Mk2z TSO (ScR)-Mk2d TSO (ScR)-Mk2d TSO (ScR)-Mk2d TSO(T) (ScR)-Mk2a FK (b/g)-Mk2f DBSO (ScR)
Glasgow-Aberdeen
Class 47/7-Mk1 BG-Mk2d TSO-Mk2z TSO-Mk2d TSO-Mk2d TSO-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO (all ScotRail livery)
Edinburgh-Aberdeen 1987
Class 47/7 (ScR)-Mk2a TSO (b/g)-Mk2d TSO (ScR)-Mk2d TSO (ScR)-Mk2d TSO(T) (b/g)-Mk2e FO (ScR)-Mk2f DBSO (ScR)
Glasgow-Aberdeen 1987
Class 47/7 (ScR)-Mk2z TSO (ScR)-Mk2d TSO (ScR)-Mk2d TSO(T) (ScR)-Mk2a FK (b/g)-Mk2f DBSO (ScR)
Glasgow-Aberdeen 1987
Class 47/7 (ScR)-Mk2z TSO (ScR)-Mk2z TSO (ScR)-Mk2a BSO (b/g)-Mk2d TSO(T) (ScR)-Mk2a FK (b/g)-Mk2f DBSO (ScR)
Sunday Morning Edinburgh-Aberdeen October 1986
Class 47/7 47 708 "Waverley"-Mk2d TSO-Mk2d TSO-Mk2d TSO-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO (all ScotRail liveried)
Aberdeen-Edinburgh
Class 47/7-Mk2d TSO-Mk2z TSO-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO (all ScotRail liveried)
1A59 11:25 Glasgow QS-Aberdeen December 1986
Class 47/7 47710 "Sir Walter Scott"-4 Mk2d TSOs-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO (all in ScotRail livery)
1T22 11:05 Aberdeen-Glasgow QS
Mk2f DBSO-Mk3a CO-5 Mk3a TSOs-Mk3a SLEP-Class 47/7 (all in ScotRail livery except SLEP which was in blue/grey)
Glasgow-Aberdeen December 1985
Class 47/7 47 701 "St Andrew"-Mk1 BG-3 Mk2d TSOs-Mk2d TSO(T)-Mk2f FO-Mk2f DBSO (all ScotRail livery, except Mk2f FO (blue/grey)
Aberdeen-Glasgow QS May 1985
Mk2f DBSO-Mk2e FO-Mk2d TSO(T)-3 Mk2d TSOs-Mk1 BG-Mk3a SLEP-Class 47/7 47 711 "Greyfriars Bobby) (all ScotRail liveried, except SLEP (blue/grey)
Dundee-Edinburgh June 1986
Class 47/7 47 707 "Holyrood"-Mk1 BG-3 Mk3a TSOs-Mk2d TSO(T)-Mk2e FO-Mk2f DBSO (all in ScotRail livery)
Aberdeen-Glasgow QS April 1990
Class 47/7 47 706 "Strathclyde"-Mk2f TSO (IC)-Mk2b TSO (b/g)-Mk2d TSO(T) (ScR)-Mk2a FK (b/g)-Mk2f DBSO (ScR)
I know it's a bit of an information overload, but hopefully the above information will prove interesting/helpful/of use to someone
In addition I have the 1986 Loco-Hauled Travel book which details locomotive diagramming including the Class 47/7s. If anyone would like me to post the diagrams for the 47/7s please let me know.