Looking at old ECML WTT, in 1981 was 1E28 0810 to Scarborough (0808 in 1982, 0820 1983) and 1S51 1508 return (1512 in 1982, 1508 again in 1983) Loco hauled.

Looks like 1983 the HST started 1E09 0930 from GLQ into KGX 1531, return was 1S32 1600 from KGX. Sunday was 1E05 0945 From GLQ, return 1S32 1600 from KGX.

Not got the 1984 WTT but in 1985 were 2 southbound Workings. 1E32 0800 from GLQ into KGX 1402 and 1E05 0830 from GLQ into KGX 1422 SX, but No northbound working. On Sundays was 1S20 1000 from KGX and 1E11 1015 from Queen St into KgX 1720. No Scarborough either in 1985.

in 1986 the Scarborough was a HST 1E28 0825 from Queen St, 1S51 1347 from Scarborough SO. 1E36 0800 from GLQ into KgX 1401, return was 1S33 1700 from KGX. Sundays was 1E11 1015 from GLQ into KGX 1714 and 1E15 1315 from GLQ into KGX 2008. Only 1S33 1700 from KGX Northbound.

in 1987 (last WTT I have) Scarborough was 1E28 0825 from GLQ returning as 1S51 1333 to GLQ. 1E01 0620 from GLQ into KGX 1224, and 1E03 0730 from GLQ into KGX 1330. 1S15 1235 SO from KGX and 1S33 1700 from KGX SX And SuO.