My question is whether boat engines ever get rated for torque? In the automobile world it's an important figure. Does the torque of an engine matter in boating or is horsepower the only important number. For example, I have a 1990 sea ray 250 DA with the 7.4 Bravo rated for 330 HP. What is...
I have a 1990 Sea Ray 250 DA with the 7.4 Bravo. I have noticed that over the course of aproximately 30 hours of running I have lost 1/2 inch of fluid in my resevoir. Is this normal? Does this indicate a problem? I see no slick behind the boat while running in the water or on muffs in my...
I have a 1990 Sea Ray 250 DA with the 7.4 Bravo. While reinstalling my prop I noticed that the zinc that fits flush onto the bottom of the out drive above the prop is gone. I still have the two that fit around the hydrolic cylinders and the two on the trim tabs. I trailer my boat and it is...
Can anybody help me with the best method and cleaning product to use for cleaning my flame arrestor? If it matters it is for a 1990 7.4 Bravo. Thanks in advance.
I have a 1990 Sea Ray 250DA with the 7.4 Bravo. Engine was running perfectly. I took it out with some friends and anchored at a beach. On the trip home it felt like I was trying to get on plain while towing another boat. It accelerated poorly and wouldn't go above 3900 RPM. I've given it a...
I have a 1990 Sea ray 250DA with the 7.4 Bravo. The engine is raw water cooled and I always use it in salt water around Long Island. What temperature should my guage be reading. I don't know if it matters but the water temperature in the bay is in the high 70's to low 80's.
I have a 1990 sea ray 250DA with the 7.4 Bravo serial#OD 376979. Last time I ran the boat aprox 1 week ago, it ran beautifully. I took it out today and wouldn't start. I lifted the merc cover off af the carb and noticed a few strange things. First, the wire from the coil was disconected...
I have a 1990 Sea Ray 250DA with the 7.4 Bravo. The engine has been running outstanding since replacing my fuel pump. The engine used to max out at 4400RPM and between aprox. 36-39 MPH depending on how smooth the water was. That was with two people on board. Yesterday I was out with 6 large...
Do they work? What do they do? If they do anything do they only work for smaller boats? Lastly, I have a 1990 sea ray 250DA with the 7.4 Bravo. It's a pretty heavy boat, aprox 6000-6700 depending on people on board. Thanks.
I have a 1990 sea ray 250DA with the 7.4 Bravo. I had to switch to an electric fuel pump and the engine is running perfectly. The kit made no mention of the plastic tube that went from the carb to the mechanical fuel pump and there is nowhere to connect it to the new pump. What is it's...
I have a 1990 sea ray with 7.4 Bravo with 340 hours. I have heard nightmares about risers going bad and leaking water into the engine. Is there any way to know ahead of time if they need to be changed. I bought the boat used and have no maintenance records. The temp always run fine as per...
I have realized that it is too complicated for me to install and wire up an elctric fuel pump on my boat. If anybody with the knowledge could give me an aproximate time it should take so I know if I'm getting raked over the coals or not by a boat shop I would appreciate it. It is a Mercruiser...
I have a 1990 7.4 Bravo. OD736979. My mechanical fuel pump died. While attempting to change it myself I apparently bent the rod that actuates the pump. After many hours and different methods of trying, the rod is not coming out of the block. I am going to use the Mercruiser conversion kit...
