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ColinD

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  1. I stand corrected, thanks. I will be on board Aquabelle in France next week and will tell my French co-owner about your posts. I am intrigued about Adie's metal spraying solution so may follow this up later.
  2. Thanks for the Links. I knew about the boat Ruda but had forgotten the picture of her gearbox. Unfortunately, Ruda's owners had to change the Ailsa Craig engines a couple of years ago as they had worn beyond repair. I expect the gearboxes were discarded with them and are now scrap.
  3. Thanks for the advice (who are RPWP?). Not sure about the make of the gearbox. I assumed it was by Ailsa Craig as it is shown in my engineering drawing (attached) of both engine and box together. The box is a multiple plate assembly (alternate bronze and steel I think) with forward gear engaged by a cam which compresses the plates together. Reverse stops the who assembly and changes direction via a sun and planet gear. It is all immersed in oil. Yes they are heavy - 3/4 of a ton each!
  4. I have a boat, "Aquabelle", currently running two Ailsa Craig RF6 engines that are in good shape, although some of the ancillaries are giving trouble from time to time. The engines were built in 1959 and fitted to Aquabelle in 1960 as a replacement for two RF3 engines fitted on build in 1939. My main trouble is the multi-clutch gearbox where the reverse brake band has run out of adjustment, needing a bodge on the pivot to gain a little more life. Has anyone any experience with these gearboxes and knowledge of repair/rebuild? Aquabelle is a 45ft motor yacht and was at Dunkirk for Operation Dynamo.
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