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![]() M.J. wrote in message om... Thanks to all for your advice...unfortunately the engine has just expired! That may explain the lack of power!!! It started losing oil pressure and sounding a bit sick - on inspection there appeared to be an oil leak from the crankshaft oil seal; fortunately we were near enough to the marina to limp back in. Oh well, back to the drawing board :~# Does anyone know whether the BMC engine fitted to minis and morris 11/1300's etc can be marinised by bolting on the bits and pieces from the vedette block or are they different - they do look similar... any info gratefully received Cheers MJ Don't give up on the Vedette without a struggle! It is a nice little power plant. Remember, you are going to have to mate the gear box with a new engine. It is probably less work to fix the Vedette than to cobble something else. The A series was used in the Morris Minor, the Austin A35. The basic engine carried on into the Mini. So a Haynes Manual for any of these (Charity shops!) will give you most of the info for a repair. For bits and good, friendly advice, try http://www.dsnclassics.co.uk/frame_c...mini_minor.htm they do mail order and overhaul Vedettes! Once you get in there with the info you need, you'll start to enjoy it! Anyway, the better you know your engine, the safer your boating. 2. With luck "Tim Christian" wrote in message ... Brian Sweeting wrote in message ... The normal excuses for lack of revs a- Bottom of the boat fouled Prop fouled Air intake blocked Bear in mind also that if the boat is a displacement hull then its maximum speed is only about 5.5 knots; trying to go any faster will overload the engine giving the sort of sound effects that you are experiencing. Hope this helps ;} Brian I have the manual for the Vedette installation. There is no governor. Generally speaking, engines of this period (late '50s/'60s) were not designed to run at more than about 2000 rpm. Speed limitation is mainly due to the boat hull (assuming the correct prop). If the hull is clean, expect 3/4 h/gallon at 4 mph. As the speed increases fuel consumption drops rapidly until you are only getting about 1 h/gal at 7 mph. My single Vedette in a Freeman 22 just about gets me up to 7 mph at 2000 rpm. A twin Watermota installation (very similar in power to a Vedette) from the late '50s on a Freeman 22 will make 10 mph with both engines at 2000 rpm: so engine rpm is not the limiting factor. |
#2
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Hi
Thanks for that! I am wondering whether to try a repair - I've got a suspicion that the head gasket has gone but there is also a nasty oil leak which looks like it's coming out of the crankshaft oil seal so it's a major job I think. I have managed to locate a 2nd hand replacement which is actually a marinised 1100cc BMC 'A' series (which, I believe, superceded the earlier side valve engines in BMC cars). This has a watermota gearbox fitted which I may use if it will fit, otherwise I'll use my original box. There is also a BMC 1500 OHV available which, I hope, will fit onto my original gearbox if the engine block of the side valve motor is the same as the OHV one. I need to make some enquiries and weigh up the best option. If you have any info on this I would be grateful for any advice you may be able to give. Cheers MJ "Tim Christian" wrote in message ... M.J. wrote in message om... Thanks to all for your advice...unfortunately the engine has just expired! That may explain the lack of power!!! It started losing oil pressure and sounding a bit sick - on inspection there appeared to be an oil leak from the crankshaft oil seal; fortunately we were near enough to the marina to limp back in. Oh well, back to the drawing board :~# Does anyone know whether the BMC engine fitted to minis and morris 11/1300's etc can be marinised by bolting on the bits and pieces from the vedette block or are they different - they do look similar... any info gratefully received Cheers MJ Don't give up on the Vedette without a struggle! It is a nice little power plant. Remember, you are going to have to mate the gear box with a new engine. It is probably less work to fix the Vedette than to cobble something else. The A series was used in the Morris Minor, the Austin A35. The basic engine carried on into the Mini. So a Haynes Manual for any of these (Charity shops!) will give you most of the info for a repair. For bits and good, friendly advice, try http://www.dsnclassics.co.uk/frame_c...mini_minor.htm they do mail order and overhaul Vedettes! Once you get in there with the info you need, you'll start to enjoy it! Anyway, the better you know your engine, the safer your boating. 2. With luck "Tim Christian" wrote in message ... Brian Sweeting wrote in message ... The normal excuses for lack of revs a- Bottom of the boat fouled Prop fouled Air intake blocked Bear in mind also that if the boat is a displacement hull then its maximum speed is only about 5.5 knots; trying to go any faster will overload the engine giving the sort of sound effects that you are experiencing. Hope this helps ;} Brian I have the manual for the Vedette installation. There is no governor. Generally speaking, engines of this period (late '50s/'60s) were not designed to run at more than about 2000 rpm. Speed limitation is mainly due to the boat hull (assuming the correct prop). If the hull is clean, expect 3/4 h/gallon at 4 mph. As the speed increases fuel consumption drops rapidly until you are only getting about 1 h/gal at 7 mph. My single Vedette in a Freeman 22 just about gets me up to 7 mph at 2000 rpm. A twin Watermota installation (very similar in power to a Vedette) from the late '50s on a Freeman 22 will make 10 mph with both engines at 2000 rpm: so engine rpm is not the limiting factor. |
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