Q:We have a 92 cadillac deville, my husband can replace the water pump he justs need to know if you have to jack the motor a little. Please help before our car blows up!!

I have done them on the 4.9's. I dont remember having to jack up the motor for any reason. I do remember there are like 20 bolts that hold it on and there is not a heck of a lot of room to get at them. I think the reason someone mentioned jacking up the motor is some of the GM engines like the 3.1 or 3.3? to change the belt you need to take apart one of the motor mounts. Since the mounts hold the engine in you need to support the engine when you remove them. I remember the 4.9 being more like the 3800 in that its mounts go to the front by the radiator so they wont be in the way of the belt.

Q:I was wondering if anyone could help me figure out why? Problems started when our car overheated due to neglecting to refill the coolant a while back. The coolant tank got cracks in it and we had to replace it- but now the water pump is leaking, says my husband- should we just replace the water pump or could this be a bigger problem? Why is it leaking all of a sudden now? (please no snarky rude answers , I'm looking for help not to be scolded! Yes we neglected to add more coolant-- damage is already done so don't bother making a ridiculous comment about it!)Thanks!

Why is it leaking, who knows. They do wear out, but likely the overheating made it happen sooner. Replacing the water pump should resolve it. But if you are over 80k miles and have never changed the timing belt/chain now would be a good time to do it. (Its behind the water pump)

Q:new switch and new tank

Sounds like a bladder tank issue. The bladder gets potential energy when the pump fills the tank. When you open a faucet for water, the potential energy stored in the bladder will push the water out of the tank without the need of the pump coming on until the tank is almost empty. You should be able to rock the tank when the pump first comes on to see if it is light weight, as it would be when almost empty. If not then there's your problem. When the pump ends its cycle is when the tank will be at its heaviest. Again: The tank should be full when the pump is not running and almost empty just before the pump comes on. The water pressure would behave as you describe if the bladder tank is not functioning properly.

Q:What is the defection of water pump

The structure of the water pump and water pump water.Because: when the pump head exceeds the rated head, pump current will increase, the water discharged from the pump impeller, back to the inlet of water from between the impeller and the casing exceeds the rated value, if it is a high lift pump, clearance between the impeller and the pump shell is very small, the current increases with increasing lift, current exceeds the rated value too soon many motor will be burned.

Q:Water pump maintenance what should be maintained?

Bearings, seals, impellers - removing dirt

Q:A mechanic replaced my timing and other belts on my 2001 Mitsubishi Galant 4 cylinder today but not water pump. He said the water pump looked good. All the other mechanics I talked to told me they had to replace the water pump. This mechanic said the belts were not connected to the water pump in this car and therefore the water pump was ok. The car has about 100500 miles on it. Is this bad or should I call him back and ask him why he didn't change the water pump. I don't want to pay more later.

no your water pump should be fine if the belt wasnt spinning the water pump then nothing was moving to break or whatever the way you can tell if your water pump is bad is it will leak green antifreez out of the front of the motor and you will see green puddle on the ground but if its not leaking then its good

Q:The water is being put in because it was overheating. We changed the thermostat and everything and it got better, but about a month later it started overheating again and now it is leaking water bad from underneath the car. Whatever is leaking is covered by a shield thing. Im not sure what it is, and I dont want to replace it before I know if thats really what it is. Any help would be greatly appreciated.

If the leak is on the passenger side of the car (near the tire) then it is most likely your water pump. It is driven by the serpentine belt that drives most of the visible components on the passenger side of the engine. (power steering, A/C, Alternator etc) To check it, you need to look UNDER the water pump, it has a weep hole. If this small (1/8) hole is wet, or shows signs of having been leaking (like discoloration or rust) then your waterpump seals or bearings are going. The unit must be replaced. This should also fix your over heating problems. If the leak is near the back-center of the engine, then it may be a frost plug (also called a freeze plug) these are designed to pop if the enging coolant freezes to prevent damage to the engine block, they can also be opened if the engine over heats. Be careful when replacing this plug, if you drive it INTO the engine, you will have to dismantle the engine to get it out again. On the plus side, you can get rubber plugs that are easy to install and quite inexpensive. I'd place the water pump as the most likely problem.

Q:There is a 5.5KW before the pump head is now 25 meters and flow of 20 cubic meters, but not up to the requirements, I think this is like with a motor pump, lift more than 20 meters, the flow is about 40 cubic meters of water pump, please inform the models and parameters, thank you

With the motor pump are pump according to the actual need of work with you in the head, under the same water doubled, the motor is certainly not enough, you should this motor pump change together in order to meet the requirements of.

Q:I have a 1995 Johnson 88 Outboard. It needs a water pump. I have everything loose except the shift rod that goes all the way through the unit How is it connected and how do I disconnect it?Thanks for your answers.

some come apart on top of the gearcase somewhere

Q:It is used in a water pumping station.

This Site Might Help You. RE: What is a submersible pump and how does it work? It is used in a water pumping station.