In the meantime we are also thinking about the engine itself. As we described in previous postings we are having trouble removing a rusted spiggot from the underside of the cylinder head. As a result, we have resorted to removing the cylinder-head to give ourselves better access to the difficult part. This in turn gave us access to the valves and tappits. We've noticed that the valves are heavily clogged up with carbon, and were wondering how important it is to clear it all off, and if it is critical, what is the best way to remove the carbon? We have tried a small wire brush on a dremmel, however the tough carbon chewed through the brush fairly quickly.
In addition we still have the issue of our cooling system completely clogged with a rusty goop. We need to find a way of cleaning it out. Our first thought is to simply get the engine working and then run a hose through the system without the radiator attached, thereby flushing the rust out.
