Hello guys,Jim and Daniel you two seem know alot about these dynes can you hlp me decide what to do here? This 1966 16ft dyne has a volvo motor with two carbs, I am not sure weather keep it or retro it with a newer version. The motor runs but I can't seem to find rebuild kits for the carbs, the other thing is tha I am not too crazy about the generator verses an altenator. One other thing, there is a hose comming from the water pump and am not sure where it connects. I have had many boats in my time, but this one seems very forgein to me. Like the steering wheel being on the opposite side, the water pump and there being no inlets for water on the foot, no back seat. I don't want to change anything about the boat I want iy origonal, but I am worried about the drive system. Could you help me with this, maybe give me some wisdom or guidance. Thanks Ronny
I have not used a carb kit for years. About the only thing that wears out is the needle and seat and the throttle shaft bushings. When the throttle shaft is worn, it is time for a new carb. The needle and seats are probably available. If it is running and not leaking the needle and seat are probably ok. The float bowl and the jet circuits probably need cleaning. If you are careful the bowl gasket most likely can be re-used. I sometimes make my own gaskets, but it is a lost art. Go to this site and look around, there is a bunch of info there with schematics and diagrams: http://www.marinepartsexpress.com/ I think a generator is fine, but it probably could be converted. Just make sure you get a marine alternator and not a car part. As far as the cooling system is concerned, check out the above site and try tracing it backwards. Without a picture, I can't be much help. I'll bet there is an inlet on the lower unit, but it probably looks different than you are used to. Don't forget that on the inboards there is water going to the exhaust manifold jacket and to the exhaust elbows. The elbows are usually the water exit, it cools the bellows. Volvo parts are not as easy as Mercruiser parts. The logical choice for an I/O conversion would be the Mercruiser. Ideally you could buy a wrecked boat with a good drive. The enemy here is weight. You need a drive that is as light or lighter than the Volvo which means small four cylinder. A Mercruiser conversion will require that you replace the transom. In my case, I converted to an outboard. The boats were built both ways. I reduced the weight of the boat by I think about 500 pounds or more and everything about the boat got better. Any conversion is probably going to cost more than the boat is worth unless you do all the work yourself. I would be tempted to fix the engine and drive if possible and run it for a while to see if you like it. New 18's are available from Tom Miller. jim
Thanks for your help Jim. I looked at the site, good info there.The mechanic i use says i have a b18 motor which means nothing to me, i am not a mechanic, but he has found a b20 that is in great shape and include the outdrive, he says it is the same motor just a little more horse power so i think i have decided to go with it. This boat is in great shape, floor is solid, transum is solid, so i think it is going to be an easy restoration. Still can't decide on the color though. By the way just for kicks i spotted a 1969 gmc van today restored, teal green,Man wouldn't that look nice pulling a 1966 dyne to the lake. I might just have to have it. Ronny
I did a little research into the b18 vs the b20. They are the same block . The b20 has a larger bore which gives it a nominal displacement of 2 liters. The b18 is 1.8 liters. They both have the reputation of being extremely rugged. The weight should be the same with the b20 having more power and torque. It sounds like a good deal for you. Do you know which drive you are getting? And, did you resolve the mystery of the water pump hose and the water inlet? I think you will find that down here in the south the darker color upholstery and deck can get unbearably hot in the sun. My boat is white and off white for that reason. If I touch the red or blue stripe on the deck in the sun, there is a remarkable difference in the surface temperature from the white. jim
Thanks for the info Jim, I think as far as the color we are loking at an antique mint green wiy grey carpet. As far as the drive we are going to use the one on the b2o,it is the same as the one on the b18 just newer.we are going to pull it outside saturday and take some photos to post for all to see. I have had alot of boats in my time but none have excited me quite like this one.The water line comming off of the pump hooks to a fitting on the inside of the transumwitch is also the exhaust for the mator, the exhaust pipe going down into the water serves as an inlet for fresh water and an exit for cycled water with the inlet side haveing a screen on it,this seems rather weird to me but makes sence at the same time. I will try ti include a photo of it as i can't explain it too well.Thanks again Jim you have turned out to be quite helpful. Ronny
I think several drives were used with that engine depending on the year. Keep the prop that came with the boat. Keep the prop on the new drive too, if it has one. We will probably discuss props when you get it running. Is the gear ratio the same on the new drive? What will the boat be used for? jim
Mostly the boat will be used for just rideing about at a cruiseing speed but i will from time to time want to pull a tube or a ski, so i guess i need a little speed and torque at the same time. I will probably go to some classic boating meets or such. I want to be able to show off a little bit of what an old boat is capable of doing if you know what i mean,i dont want to eat the spray of the new kids on the block. Ronny
I am sorry to tell you that you will eat the spray from the modern hulls, specially the outboards. The Hydrodyne hull is obsolete as far as speed is concerned. The soft chines (rounded) and spray rails produce a lot of wetted area which in turn produces a lot of drag and limits the speed. The newer V-hulls specially the ones with a pad and the air entrapment hulls will outrun a Dyne by a wide margin with similar or even less power. Go to the Allison boat web site for an example. The Dyne does have charm and a nice ski wake. They are also fun to drive. They are also very rugged and will outlast many of the later mass produced hulls. jim
Tell me this Jim what kind of speed can i expect out of this boat with the 2.o 130 horse. and how well will i be able to pull a skier, and i know the ride will be rough but how well does this boat handle. The reason i ask this question is that as much as i would like to restore this jewel if it will not preform at a good speed and pull the kids around for fun i may need to rethink this project and op for a more practicle boat.I would hate to give it up but if that is the case i may need to sell and invest in a more useful boat Ronny
