Yesterday was absolutely exhausting. I drove three legs of three and a half hours each from Ludlow to Henstridge to Old Warden and back home, loading the trailer with Theo’s help at Henstridge (2 hours) and unloading the fuselage at Old Warden (another hour). But the fuselage is in the right place so that the engine can be refitted as soon as it’s reassembled.
As you can see, 1264 is sat between some VERY illustrious neighbours!
Phil also gave us the old cylinder liners, and for those who are into engineering porn, here are some details.
Here they all are. My wife has suggested we should run a competition for the most creative use for them. My initial thought was door chimes, but as they don’t make any significant sound at all, I’m sure someone can come up with something better!
This is an original cast iron liner. It’s only 1.5mm (1/16in) thick, as is the steel cylinder wall, so removing it has to be done very, very gently. The Shuttleworth technique is to tap it to fracture it, and as you see it comes out quite neatly.
There were three that looked quite different; these are made of nodular cast iron which is far more ductile, and were a pain to remove. Some brave soul had to cut almost all the way through the liner with a Dremel or something similar, and then a drift had to be very, very carefully driven between liner and cylinder to peel it away. Thank goodness the cut didn’t go all the way through!
It’s interesting that it’s the ductile iron liner bores that have been damaged the most – here’s one.
Here’s the worst of the cast liners by comparison. Bear in mind that was run for half an hour at full power with just the residual oil on the cylinder walls – the oil supply was switched off. Even more remarkable then, that most of them were completely undamaged, but since they were on the outer limit for bore, we decided to replace the lot.
So a very productive day, generally.
The one cloud on the horizon, (apart from the bill, of course…) is that because about half a dozen Collection machines have thrown little technical issues, our engine rebuild may not be completed quite as quickly as we’d hoped.
But it should cause any major hiccups as far as we can see.