Q:I think the water pump on my 40 hp mercury outboard 2 stroke is not working, the hole witch usually pours out all the water that was used to cool the engine does not pour any water at all. Is this a problem with the water pump? If not what?

Well to start of, and two, A 25 hp does not have a water pump, like a car, it has am impeller driven by the out board motors gear system

Q:1998 BMW 328i : to replace water pump, thermostat and gaskets, brake flush, fuel system cleaning with tune up,drive belt for 90k serivce; totally how much bucks?thx a lot !

At okorder to prevent mechanics from trying to rip you on the parts.... and they might not be trying to... but their prices are higher than bav's. PS... the 90K mile service is A LOT... I have never paid anyone to do it. Look in the back of your owners manual, it tells you everything they check. I check it all myself. If you change your own oil scope things out while your under the car. It's easy to spot stuff that is wearing out. You can reset the service light yourself too. :P If you don't know anything about cars however.... don't try doing it yourself.... in other words... if you are scared of doing it, don't... if you feel confident... go for it. Also... the first time you do things it might take an hour... second time will take 30 mins... 3rd time you do something it will take 10-15 mins. Most of the projects I have done have been like that. From rebuilding the internal door mechanisms to working on the engine... that's how it's been for me. Key is to not let yourself get frustrated.

Q:I have a four cylinder ranger with manual transmission. The top pulley was making a squeaking sound the other day and stopping and going. The car stalled out so I had to give it gas for about a minute, and this has happened several more times in the past week. And the car is making a somewhat loud rumbling/clanking noise, which I'm guessing is the bearings on the water pump. So my question is how much will a new water pump cost, I've seen prices quoted on here from $150-$700. Also, it was in the mechanic the other week and I asked him to check the ac compressor and he said it was fine.Thanks

are you sure it's not the belt tensioner rangers had a huge problem with them.I just replaced mine cuz it chewed the belt up was making the most horrible sqealing for a long time

Q:My mechanic said I have a very small coolant leak and that in the future I might need to replace it.He said I should keep an eye on my coolant level.Anyone like to comment on how how a quot;small leakmight develop into a quot;major leakthat needs to be urgently addressed?He also said that to replace my water pump, he would charge $400. Is this expensive?(I have a 1996 VW Jetta)

The water pump leaks to warn you that it is about to go bad, meaning that you will overheat. Keeping an eye on the coolant is a good temporary course of action but this needs to be fixed before you ruin the engine. I believe your water pump is driven by the timing belt and that is a complex job. $400 is about right, and have him change the timing belt and thermostat also.

Q:I'm trying to make water pump with solar energy. I need to have good water pump. Could you find good websites to find DC 12v water pump, or is there any place that I can get it?

Good Gravy, Mon! Don't you know how to use 'SEARCH'?!? I just GOOGLED '12v dc water pump' and got a ca-jillion hits!

Q:I think my water pump is leaking and I want to replace it, but I can't figure out how to get the pulleys off. There is a large nut on the shaft that the pulleys are on, and I can't figure out how to remove it, or if the nut is attached to the shaft, and the entire shaft is supposed to come out, or how it's set up. Please help. Pictures would be great if possible. Thanks!

take bolts and nuts off of fan and take off , might have to pry because of rust , corrosion . then take bolts out of the water pump , once all bolts are out , tap with rubber hammer or pry by hand, pump will separate , because of close quarters with radiator be careful not to damage radiator by accidentally hitting it

Q:The role of impeller in water pump

The impeller rotates at high speed so that the centrifugal force is generated by the water, and the vacuum is generated in the middle of the impeller, and the water source is continuously sucked into the impeller to increase the kinetic energy of water and play a role in promoting water.

Q:How much should I look for paying for my 1998 Honda Accord Water Pump??? With Labor and Materials?

Your okorder /

Q:i want to make this for a physics project for school. i found a video on how to make it, but i dont understand the physics behind. i have to make a model and a poster explaining the physics. i dont understand what to put on the poster so could someone help me with which physics principles this project would go with?

It isn't practical to give a detailed description here. This is a positive displacement pump. The pump chamber is sealed so that as the piston is moved up the volume within the chamber increases. Water is pushed into this chamber by the outside air pressure. If the pump is located too far above the water source then the air pressure is not sufficient and you will produce a vacuum inside but the water still will not flow. When the pump is pushed down the water flows out. Now the one way valves are critical. We don't want the water to flow back the way it came and we don't want the water that we have already pumped to flow back into the pump. So a one way valve on the inlet will permit water to flow into the pump but not out of it. And a one way valve on the outlet will permit water to flow OUT of the pump but not into it. So with each stroke you a) reduce the pressure in the pump. b) water is forced from the inlet, past its one way valve and then into the pump. c) the pump is pushed down increasing the pressure in the pump. d) water flows out of the pump through the other one way valve and on to the output.

Q:Pump flow 6M3/H is an hour, how many tons of water?

1.5KW pump if the head 90 meters, then the flow of 2 tons, more than the most