Plug lead guides for Rover V8

I have made replacement guides for the spark plug leads that attach to the rocker covers on Rover V8 engines.

The screw was seized and the original guides did not come off intact! 

A few measurements and design changes to suit 3D printing and the results work well.

The guides do need supports to print, mainly because of the large overhang for the counterbore.

I bought new machine screws. That was an exercise in working out historic imperial abstract naming conventions! The screws are 3/16"-24tpi x 5/8" long. That's not what you look for to try to buy them. They are called #10 UNC or #10-24. I will never understand the thinking process of naming something with another number to represent the size, instead of using the size!

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Weber adapter for a Rover V8 manifold

The SU carbs that came with the engine, destined for the hot rod, have seen better days. This led to the idea of replacing those with a Weber carb.

This is a common adaptation and already modified manifolds for the Rover V8 3500 are readily available, at a cost. However, Dean picked up a damaged manifold from an SD1 at a bargain price and I have a mill :-)

The carburettor is a Weber 38 DGAS. Dual 38mm bore with synchronous operation. It has an automatic choke, but most likely we will replace that with an electric one. The Weber carbs, spare parts and upgrade components are all readily available in the UK, making this a good choice.

I'd already managed to hold the manifold on the mill table to clean up the cut off top. I've now milled an adapter plate.

I'm using M8x40mm set screws as mounting studs. On top of that goes the thermal insulating spacer and then the carb.

The adapter will be attached by someone more experienced with welding aluminium.

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... and a few weeks later, just before Christmas, the result arrives:

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