I was cleaning up a block and cylinder head ready to reassemble the engine of 4688R.
Then I bought a valve grinding tool, the grinding paste, and a small wire brush to clean all the carbon off the ports.
I also bought a large plastic tray which is for kids to put their stuff in under their beds. With 8 litres of paraffin, it makes an ideal bath to wash the cylinder head in.
I found that those damn "mud dawbers" had blocked the oilways in the block with mud, two had hatched and were in the wire bowl which is the strained oil pick up in the sump, so I am having to check every oilway in case the oil feed is blocked to any moving component which will make it seize quickly after initial start-up.
The PO had fitted Omega high compression pistons. Does anyone know what this raises the compression to?
QED say about 11.5:1. Time for higher octane petrol.
