Q:I posted this earlier but nobody really answered my question . if my water pump is clearly on the serpentine belt I t need to replace the timing chain to get to it correct? The bolts holding the pump in are around it near the timing chain cover but they don't look like they are inside it. the pump is clearly driven by the serpentine so should I be fine not removing my timing belt to fix the pump? its leaking. Also I know you should replace the timing chain+tensioner but I inspected the chain 400 miles ago its properly tensioned the belt is in good condition its a chain it will last the life of the car its not the cheap belts.

Are you forgetting to mention something? Ah! Year, Make and Model. Engine size is a plus ... only a fool who knows nothing will answer your question without knowing the at least needed to know information ... What do you mean: if my water pump is clearly on the serpentine belt I t need to replace the timing chain to get to it correct? You've said: Timing chain and yet, the first answer by You may be right said: If you can change the pump without removing the timing belt then go for it, you are lucky. See what has happened when the needed to know information were not specified? .. and how do you expect any of us to know the question you have mentioned before and could not read your history in YA? I've rest my case ...

Q:How important is a torque wrench,if so what is the proper fp torque for pump/pulley ?

It shouldn't be that critical for water pump bolts. It is extremely important for something like engine head bolts because of the extreme pressures inside the cylinders. Just refrain from over-tightening. I've replaced a number of water pumps and have never used a torque wrench.

Q:Alright,I happen to be the only man in the house and the plumbing is a bit faulty. You see,the machine has been filled with water as necessary and was ignited. It sounds perfectly fine and you can feel water run through the pipes connected to it, when touched. But it's been an hour now and the taps are not producing water. Please can anyone help? Under normal circumstances,there should be enough water now but the taps are all empty despite the water running through the pipes. What can I do? Please help. I filled it with even more water and there's no result. Help please. Thank you.

not knowing the specific system, prolly correct. pipe frozen and what you feel is just bypass/recirc. as the water has no where to go. or there's an external leak somewhere under the house? keep doing that, depending on the system, and it's condition, might burn up a pump. many different kinds of systems. for a house or motor home, usually have one that's pressure activated. that is, pressure drops as a tap is opened, regualator sees that, starts the pump running. that would be a system that employs a reservoir. probably air charged. to sense pressure drops.a nd max pressures to shut the system off. but that may not be what you have. many different configs. USAF trained hyd/pneu tech. glorified plumber i guess.

Q:A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for pi . Round your answer to three significant digits.)The tank is a spherical shape has a radius r= 6m and a spout height of h=2m.I really dont know how to start this problem correctly. Any help will be appreciated. Thanks!

The pump will not have to work until the water drains by gravity to the level of the spout. Then, Work = Weight of water * Height of lift Find the distance, d, of the center of mass for the remaining water in the bottom 2 m of the sphere. The height of lift will then be 2m - d. The hardest part is finding the distance d to the center of mass. I don't remember how to do that.

Q:Water pump belongs to power equipment or mechanical equipment?

It's mechanical equipment!

Q:My 2000 Pontiac Sunfire has been overheating and I recently changed the thermostat thinking that was the problem. The new thermostat didn't help and the engine is still over heating. I am starting to think it might be the water pump. How can I tell for sure? When I changed the thermostat and refilled the coolant tank I left the cap off and started the car to work out the air. I was told I should see bubbles in the tank but nothing happened, I thought this might be a sign of a bad water pump. I think I will be able to change the water pump on my own I just want to know for sure if that is the problem.

Step 1 Open the car hood and locate the thermostat on the top of the radiator lid. Pull the thermostat and start the car. Watch the temperature gauge carefully. If the water pump is working properly, the engine should take a long time to warm up (if it ever does). With the thermostat removed, the coolant should circulate continuously, making it harder for the engine to warm up. If you cannot tell if the car is heating up slow or not, move to Step 2. Step 2 Turn the car off and locate the water pump and the water pump drive belt in the engine compartment. Use the wrench set to loosen the belt retaining bolt and pull the belt off of the pump. Spin the belt drive with your hands to see if it rolls smoothly and to determine if there is any movement or play in the driveshaft. If the pump seems in good working order, replace the belt, tighten the retaining screw back up, and move on to Step 3. Step 3 Locate the coolant drain plug on the bottom of the radiator and use the wrench set to remove it. Allow all of the coolant to drain out into a container and dispose of it. Replace the drain plug in the bottom of the radiator and then pour coolant into the radiator. Start the car up and watch the level of coolant carefully. If the water pump is working properly, the coolant level should drop quickly as the pump circulates coolant to other areas of the engine. Fill the radiator back up with coolant and watch it to drop again. If the coolant drops then your water pump is fine, however if the coolant drops very slowly or not at all it may be time for a new pump.

Q:My timing belt is worn but has not broken yet. The mechanic first told me it would be about $200-250 to replace the belt. Then he called back and said it was going to be $550 because on an Aveo you have to replace the water pump at the same time. I asked if it was possible to do just the belt and he said quot;well the water pump will probably break when we take it outquot;. Is this a sign that I should just break down and go to a dealership so that my water pump won't quot;breakupon removal?

If you need a timing belt then to keep from having to replace the water pump later and paying for the repair twice then it is just good practice to replace the water pump at the same time. However, the 550.00 sounds a bit high to replace both.

Q:I have a Honda 20003 bf15 d short shaft Ineed to change the water pump I have removed the 5 bolts that hold the lower unit it on but the shifter is steal hooked up how doI unhook that?

Please get the workshop manual. From an imperfect memory it should be in forward gear to expose a link - but I could be confusing it with other brands. This brand has a known issue with the water pump if ever run dry as both the impellor and the housing can be damaged instantly. The pump should always be replaced as a full assembly, housing, seals and impellor, as detritus can easily block water galleries and that requires extensive work to remediate. The thermostat should be checked and replaced at the same time. Worn and damaged impellor material can easily end up through the block, head, thermostat etc. and that must be checked for as well. The lower cylinder can be down on compression caused by local overheating due to this and mud, sand and corrosion reducing water flow. An engine that very much must be flushed and looked after after all use - that includes all the larger models with this brand. They are quite a good engine, but seem very heavy for the output to me - particularly compared to lifting a two stroke on and off....

Q:I have replaced the presure switch on my water pump but it switches on and off when it is building up presure instead on staying on until it gets to right presure.Any ideas of what is causing this?

The switch may have gotten some debris in it. Try removing it(again) Clean the passage way out. If possible try running the water a few seconds while this is off to clear any debris than reinstall and check. It also could be low pressure in the expansion tank or a bad bladder in same.

Q:55KW motor driven lift 70M, the displacement of 180 cubic meters per hour of water pump, the configuration should be no problem, but after the start of the current to 170A (rated 100A), off a small valve to the current export half to reach the rated current. Why current will close a small valve instead of small? Will close a small valve will not affect traffic flow can be? To the 180 party?

If the power line is too long or too small, power line is too long or too small will cause excessive current. Valve shut down certainly affect the flow. When the valve is in the semi open state, the water pump out of the water flow down, the power to reduce, so the current drops.