Dowty Turbocraft (Hamilton) Jet Boat Rebuild. The Beginnings: From a backyard workshop. Irishman Creek Station in. Central Otago in the 1920s. Instruction manual for model 272 price $1.00 dowty turbocraft special v-8 marine engine trent &. Dearborn interceptor Marine Engine Manual USEFUL by gfgarland 1 month 7 hours ago. Buehler and Dowty Turbocraft literature by willardco. Dowty Turbocraft Manual Transfer The Dowty Gear Pump offered by us is the product of dynamatic technologies. DTL), which is popularly known as “Dowty”.
Grundig Manuals Free. So It begins. I have allways liked the Jet type boat, and Idealy an early version which looks 'right' I have as an ebay saved search 'dowty' and 'Jet' which comes from another intrest, this showed a Local (less than 5 miles) speed boat in need of restration, some thing I hadnt even contmpleted, I promplety went to view the boat, it was in quite a state, but did look sound and I was impressed with the quality of the Hull. So Im in at the deep end, I will have a steep learning curve ahead, as I dont know a lot about Fibre glass, Mechanicals are less of a problem. I have been considering the ooptions for chaning the engine, as it is not a MK1 Turbocraft and has a different strearing nozzle arangement, I believe that it is probbley less important that I retain the orignal 2.5 Ford cast Iron engine. I have been considering the options, such as an all alloy V8 (Lexus as I have 2 spare) and limit the revs and also the accleration rate with a ECU system, a Stright six alloy engine from a BMW or the Toyota 3L stright 6 alloy head and cast block. I would like to keep the weight low and also improve the eficancy of the system IE MPG.
I have had some intresting discusions with an ECU manufacturer which I have used when tuning Cars, where we can use a pizco electronic sensor to detect cavatation and use the Traction controll channel on the ECU to retard the Ing and or rain in the engine revs to prevent the Cavation.... Any way that all a long way in the furure, I want to keep the Boat lookin 60's style and look orignal. So the Firt thing to do is to strip and make repars to the Hull and also the Pump.
I have some photos at this stage one of the process. I think I might have to build a special section for Dowty as it is certainly catching on. The quality of the build is excellent, but sadly the design does make certain problems and these are not easy to overcome. You have a great project there and in fact it is better than it looks. The engine looks like it has had a bit of abuse, but them that is not too bad to rectify if the block is not cracked. I do have a spare block, but it is cracked.
I see the sacrificial anode in the jet drive has been eaten, which means the shaft will possibly need attention as there is an anode around it, but that is complete disassembly. The jet is not too bad to take apart, but the tollerances are fine when reassembling, something I am doing right now and spares unavailable, so have to be made. Been there, done it and now wear the T shirt, so ask if you need bits made. Thanks the project will by a good one, I just about have the pump in bits, pics to follow. There are a few options so I will measure and assess the condition of the parts, I will no doubt be in touch as if you have had parts made for your machine it would be logical to use the same skilled people.