Mine runs to the front of the engine, up and past the front end of the rocker cover then over to the carb.
Not saying that's correct but that's how mine was when I got it.
NEWS FLASH!
This problem has gone all the way to the engineers at the BBMF. They say "it's the coil".......apparently they had a similar problem on a Spitfire recently although I suspect that it wasn't discovered mid-journey!
It could be a faulty new distributor but it seems odd that it suddenly went on two plugs. We were getting the occasional very weak spark on the no1 pot.
My hunch is that the coil is very old and tired and that all the sparks are weak and that plugs 1&2 are the worst affected.
It won't break the bank to change the coil and see what happens.
Yeah, we tried all kinds of swapping and the plugs were only wet with fuel as you'd expect.
My only thought is that the coil is on the blink - the plugs, leads, distributor and rotor are all new (less than 200 miles).
After a perfect run to this weekend's event, we had problems getting the our Bedford MW to run properly from the start of the return journey.
Several stops and a lot of head scratching showed that there was no spark on the front two plugs EXCEPT (and this is the nutty bit) when we held the plug cap in close proximity to the terminal of the spark plus.
The spark could be heard arcing from the inside of the plug cap to the nipple on the end of the plug, when this was happening the engine ran fine. However as soon as the cap was pushed onto the plug the engine ran rough as the plugs stopped sparking.
To get home we secured the two plug caps just off the plugs with wire so they could arc to the top of the plug.
So why would a spark plug fail to work when properly connected to the HT lead but work well when there is an arc between the plug cap and the plug?
I fitted a temperature gauge to mine a couple of months ago. It's supposed to have one and it's really good to know what's going on.
Interestingly, I finally got round to fitting a thermostat this week. On it's first test run since, the water temperature went up and down like a yo yo and water was pushed out of the radiator cap! Thermostat's back out again now. I figure that I'll use the grill cover to hold the temperature up while I find out what's causing it.