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The 8hp / 10hp engine isn't really my speciality but there is a plug in the left side front of the engine and I've been told that this is the take-off point. Don't shout if it isn't!

I did reply but it seems to have vanished into the ether! Anyway, over here they are referred to as acorn nuts. The long one goes in the coil and the short ones to the distributor.

Those nuts are known as Acorn Nuts, on this side of the Pond, anyway. The short ones go in the distributor cap and the long one into the coil.

I don't think plastic will work; they were metal for a reason. They have to conduct the HT current and plastic won't be helpful here. I know that that the spark can and does jump a couple of gaps but this would add to the resistance and demand a higher voltage output from the coil.

There were all sorts of weird and wonderful thread types in the good old days with each trade having its own, e.g. plumbers had pipe thread, electrical, cycle, to name but a few. Most motor manufacturers originally used Whitworth threads before settling on Imperial (identical to S.A.E.). Now it's ...

Cylinder rebuild kits generally come with a small tube of grease for the hydraulic parts of the system; all that I have seen are a darkish red. I use this quite liberally on the piston, but every two years I also dismantle the cylinders and apply more grease, and change the brake fluid. It's the ...

Made the Lakes Tour for the first time in three years. It was as much fun as always but very wet. The Prefect covered 287 miles in the day at a fuel consumption of just under 39 (Imperial) gallons per mile. An Imperial gallon is 4.54609 litres so bigger than a US gallon at 3.78541 litres.

https ...

"If you clean the spring up well you will find one or two notches on the spring end, the notched end is the lower end of the spring. The springs are rated according to the notches, the two notch spring has a heavier rating."

I suspect that fitting the springs with the notch(es) at the bottom is ...

That's really sad. He made a couple of trips to Britain and I met up with him both times. A truly nice gentleman.

I have a lot of the dates, at least to the middle of the months.

6015 was the basic part number for an engine block casting, it would be preceded by the specific engine type, e.g. 100E, 105E (original 997cc overhead valve engine), 109E (later 997cc overhead valve engine, also used for the 1298 cc and 1342cc engines). This should have 100E 6015 B cast into the ...

Ah well, I understand that California is quite nice too!

Anyway, this additional information confirms thoughts of an air leak on the induction side. It might be as well to check that the base of the carburettor is truly flat - they pull down at the ends of the mounting flange as the nuts are ...

Not easy to diagnose from a distance, and while a trip to New Zealand appeals, I don't think so!

If the car is wired -ve earth the the coil -ve terminal should connect to the distributor and the +ve terminal be fed from the main loom. I notice that you've replaced most of the ignition parts, but I ...

Still got the two 107E Prefects, the maroon one fresh from a full restoration and in daily use, and the blue one still for sale, but taken out for a good run on a weekly basis.