Friday, July 28, 2006

Woo! New engine photos!

Jim has returned from his travels with a new set of engine pictures - see them here in the 'Warrior's Engine' album. All in all the news seems good: the crankshaft is basically sound and the taper will be laser welded and machined to the correct dimensions by the Custom Crank and Engineering Company of Wolverhampton. This will cost (gulp) £900. This is much cheaper than a new crankshaft (sigh of relief). The block seems to be in good shape too. The original cast iron pistons (above) are going to be replaced with new Russell Newbery alloy ones. This is a bit sad, but the old ones are, unsurprisingly, very worn, and we do get to keep the old ones to use as paperweights (or ballast?). Although some people have suggested that it would be OK to replace them with other cast iron ones - assuming we could find some - the balance of opinion is that we can run at higher revs (and that we might want to) with the alloy ones. And some Nationals were built with alloy pistons, so it's not too unoriginal.


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