JayTee
Nullus Anxietus
Cancer is gender blind.
2000 D2 TD5 Auto: Tins
1994 D1 300TDi Manual: Dave
1980 SIII Petrol Tray: Doris
OKApotamus #74
Nanocom, D2 TD5 only.
He certainly did.
55-Chevy-v12.jpg d1e2c917-f34b-4d83-8c16-5310f3d9321f-xlg.jpg
Sorry to be a spoilsport, but I don't think that Rolls Royce made Allison engines!
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
Correct me if RRong, but the Allison v12 was essentially a Merlin built by Allison, using 'Merican Mass-production methods, not Pommy-Precision.... eg, any piston would fit any bore of any engine.... nor did we need to worry about keeping said pistons out of *sunlight - on the workbench - during assembley...
But RR didn't tell the Yanks 'Everything'.... Heard about a shaft that Allison kept snapping.... think it was a supercharger drive but don't quote me on that.... Merlins used a cheap softer steel which tolerated the unusual forces..... Allison engineers specified a more modern, better alloy...Think it took them a long while to figure that one out....
* Myth or Fact, ? story is, a piston left on the bench in sunlight for minutes,,, would distort enough to make it impossible to fit... - such was the exactitude of the piston/bore matching. And again, only in its's 'home' bore.
Other interesting Merlin stuff can be had in this book by Len Deighton
Fighter By Len Deighton | Used | 9780586046111 | World of Books
Where he also debunks - with figures - the belief that a Spitfire could out-turn a Me 109. Nope, it 'would' turn tighter... because the German would not violate specifications... the usually more mature Englander regarded them as rules to be modified, like his machine's dihedral. ....![]()
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