I am going to improve the oil capacity on Brian’s engine, and as a stop gap I have bought one of these, which incidentally was also fitted to Ron Tyrrell’s engine. When it arrives, I will measure the oil capacity increase, and make a new filter conversion kit to take the revised filter cartridge, but all I am doing here is going over the old work I did on engine #4.



OEM double sump casting pictured above, with no sump plate fitted or oil drain plug. This conversion helped increase the reliability of the race engines, and was standard equipment for any modified engines.

The picture below represents an improved version, that I hope to make in the next few months.