WGW's engines were by Sulzer by NEM mat well have been a licensed builder, as they were for Doxfords.

http://shippingandshipbuilding.uk/view. ... G.+WALKLEY

Thanks Ron, well found. WILLIAM G was listed as first being at NEM on 26/01/1954.

Photo from Britain from Above showing the two hammerheads at NEM (nearest to the centre of the photo) and Wallsend Slipway (nearest the left hand edge).
Photo dated 1937.

WILLIAM G. WALKLEY was built at Blyth for Australian owners and was the first in a number of similar sized tankers built for various owners, including BLYTH ADVENTURER which was built for the yard's owners, Mollers. No not that 1!!
I have seen in old Blyth News newspapers reporting that newbuilds were due to be towed to the Tyne for the fitting of their engines.
I might be totally wrong, something I am used to being, that at least one of the Blue Funnel 'P' class which were built on the Tyne came round to Blyth for finishing.
Regards
Graham