I started this build in the Aero Engine group, but have been asked by Louis to include it here.

The British Wolseley Viper V8 aero engine was developed during the Great War from the Hispano Suize 8Ab engine. The SE5 fighter aircraft was designed to use the Hispano Suize engine but once in production it was found to be unreliable and often failed in flight.
Wolseley had a license to build the HS 8Ab engines which they did and called it the Wolseley Adder, its only difference from the HS 8Ab was higher compression, but it still did not solve the SE5 reliability problems.
Wolseley engineers then redeveloped the Adder/8Ab engine . This new engine looked like its predecessor, however it was more powerful and much more reliable, becoming the most successful water cooled engine of its time and consequently making the SE5a the excellent fighter that it was.
The kit has 2 sprue sheets, 1PE sheet and a display stand base with the insructions in the usual Roden format, except very small writing and many details missing.
So it begins.

4 attached images. Click to enlarge.

Wow! The group is already throwing up some unique subjects. Fantastic!

pic1. cylinders cleaned and joined, spark plugs drilled out, new ones to be made.

pic2. Magnetos assembled and spark plug leads added, 8 wires 0.2mm per magneto. Carby assembled and PE mesh (1/72 machine gun barrel mesh ) fitted to intake.

pic3.Spark plugs fitted to cylinders, .5mm tube inside .8mm tube with .3mm wire in centres.

pic4.Spark plug wire conduits .8mm tube with coke can brackets plug wires attached ,plugs painted. Now to fit to engine block.

All this has to be done before cylinders and block come together otherwise there is no room to work.

4 attached images. Click to enlarge.

Building engines is really cool, Ian (@firelockg). Great results already.

Your Right George, but we usually hide them under engine cowling .

Thanks you all for the encouragement, Louis the geared engine was the problem. I have detailed a Mercedes in 1/32 but it is hidden in an Albatros D111.Details added were, spark plugs and leads with plug lead conduits, valve springs and valve rockers .

2 attached images. Click to enlarge.

Thanks Spiros.

Great progress and excellent improvements, my friend @firelockg! The new bleed valves and coolant pipes are a vast improvement!