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    Thunderbolt ignition to Davis Unified Two Wire ???

    I'm planning on changing out the thunderbolt ignition on my 5.7 chevy motor. The new marine distributor comes with a two wire lead. It has the coil in the cap. One lead goes to 12 volt keyed and the other goes to the tac. If I do this, how would i wire the shirt interrupter? I'm assuming the...
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    Gear ratio to prop size

    Is it possible to make up the difference of a 162 gear ratio outdrive. To get it close to what a 147 ratio would be by changing props to a more aggressive pitch? Not sure that makes sense but, I'm changing out motors in my boat from a 200 horse 5.0 to a 300 horse 5.7. I really don't want to...
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    School me on eletric fuel pumps

    I was thinking about electric fuel pumps for carbed boats. They don't return the fuel like injected pumps do. So how do they work? Do they just keep pumping dead head against the already pressurized fuel? Is there a built in relay to turn them off when they reach full pressure? If they just...
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    L31 Chev crate into an 89 Crestliner???

    I'm just researching this and have a few questions. Are the motor mounts from my 5.0 compatible? I know I would have to go with an electric fuel pump. What about the distributor? Is the one on my 5.0 compatible with the Vortec motor? Have any of you guys done this swap? Just trying to look...
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    350 GM Crate Engine ?

    I'm thinking of changing out the gutless 305 in my crestliner next summer. I've looked at crate motors and have a question about the GM 290 Horse HO 1299529. I know it says not for marine use in the description. I guess my question is why? If it was just brass plugs or the cam had to much lift...
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    Boat fuel milage sucks

    Just got back from a five day trip to Lake Powell. We went with my nephew and his kids. He owns a 1984 FourWinns 20 foot openbow. It has a 5.7 liter with quadrajet carb, 25 gallon tank. We have a 1989 Crestliner crusader 20 foot openbow with a 5.0 liter with the Mercruiser two barrel carb, 35...
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    Clip Thingys ?

    So I just bought a 1989 Crestliner Crusader. It is in great shape for its age. I've had boats in the past, but this thing has something on it I've never seen before. On the sides and rear it has round (about 1 1/2"in diameter) chrome hardware. These things have a round opening with a slot...
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    Boats with a four cylinder 3.0 inboard/outboard?

    I'm thinking of getting another boat. 17 to 18 foot open bow. A lot of what I am seeing have a 3.0 four in them. My last boat had a 5.7 in it. It was a 19 foot tri hull and was a heavy beast. So those of you that own a boat with a four in it, is it gutless? Will it pull skiers with others...
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    How to anchor ?

    How do you guys anchor your boat while fishing on the lake? When we fish on the local lakes the wind is usually blowing. This turns the boat side to side or around. Tangling our fishing lines. I've tried one anchor on the bow. Two anchors bow and stern. But the boat still turns. On...
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    1975 135hp rebuild?

    I bought a 16 foot crestliner recently with the intention of fixing it up to fish in. It came with a 135 hp Johnson, 1975 vintage. I checked the compression the other day and found two cylinders had 75 lb's and two had 100 lb's. This was with the motor cold. I'm not sure if warming it up will...
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    Ethonal in 2 stroke?

    I noticed that the pumps at the local gas stations have added a sticker stating that the fuel dispensed may contain up to 10% ethanol. I've just purchased a 78 crestliner with a 135 hp johnson on it. I am concerned what the ethanol will do to this motor. Will it kill it? I know the guys...
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