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Main section of the engine is built up. He must have spent a few hundred hours just polishing it all! Everything is as-new, or remanufactured, so it will be reliable. The bottom end of the engine was inspected and found to be fine, The valve seats were reground and lapped. The liners are also free from any wear. |
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The brass tubes you can see enclose the cylinder holding-down studs and carry oil back to the crankcase. One of these was found to be leaking badly during rebuild. |
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This drive consists of three multi-plate clutches, one for MS (moderate Supercharge), and two for FS (Full Supercharge). Water ingress made these a challenge to dismantle! |
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This is the view Robin will get when running the engine, although somewhat less peaceful than this I reckon! I will take charge of the safety-switch, a wire mounted failsafe cut out that Robin has always kept hold of when I run my engine. It will be good to be able to watch, and listen to that wonderful sound from further away for a change. |
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Supercharger and SU carburettor. The carb was undergoing rebuild. The 90 degree elbow into the blower is affectionately known as the "baby`s bum!" |
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This blower is a late Merlin T24 type, and was acquired from Parkhouse Aviation. It has the advantage of piston-ring type shaft seals over the same unit on our Merlin XX. |
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This compact unit has ratios of 8.19 and 9.49 times engine speed, giving the 10.2 inch diameter impeller a maximum speed of over 28,000rpm. It can also transmit 400 horsepower when used with a two stage Merlin blower. The aforementioned clutches are only 7 inch dia. |
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This is the throttle control shaft assembly and differential for Robins Merlin 24, after rebuild. It is sitting on the original general arrangement blueprint, although you`ll have to take my word for that! Rolls-Royce care greatly about their heritage and often supply us with copies of drawings. |
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