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Adjusting my Pentax hydromatic H1 water pump

My outflow main at the pump burst and was replaced. Since then the Pump keeps running but not cutting off even though no one is using water. At times, even though the pump is on we are not getting the expected water pressure. I am concerned that by leaving the pump running this way I may cause damage to the pump's motor.

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  • Contributor
  • 2 Answers

We need wiring diagram for achromatic 1. the power supply is 240 v 50 hz

Posted on Jan 28, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Fuel Reg........

Fuel pressure should not drop more than 5 PSI in 24 hours, the symptom you have is more than one issue, first verify the system holds fuel pressure over night, the pressure regulator will not cause this issue, the check valve built into the fuel pump will. On to the dieing concern, clean the idle speed control air bypass valve and the throttle valve with throttle body cleaner spray with the engine running at high idle, spray in at least 1/2 can of the cleaner, next disconnect the battery for 5 minutes, then drive for 2 days under varying conditions to "relearn the idle strategy".

Posted on Aug 26, 2008

  • 203 Answers

SOURCE: How do you replace a water pump on Toyota Camry

the pump is connected to the cam belt and is very tricky you could do a lot of damage if you set the timing wrong. when is the timing belt due for changing it would be done then or get it done now and save money incase you run out of water and blow your head gasket

Posted on Nov 21, 2008

redbeard00
  • 957 Answers

SOURCE: ! have a(correction): 1995 Grand am. It's not getting power to the fuel pump... The coil, relay, & ignition module are fine. I've just put my 3rd fuel pump & fuel filters on thinking that may

If the fuse and fuel pump relay check out then yes, your friend may be right. Inspect the connections to the pump and check related wiring for damage.

Posted on May 31, 2009

  • 1 Answer

SOURCE: water pump removal (cant get power steering pump out)

To access and remove the waterpump, the powersteer bracket has to be removed completely. To do this, the rear camshaft drive pulley must be removed (need a tool to hold pulley, bolt tight) and then the thin sheetmetal shield behind the pulley. This allows access to the lower powersteer bracket bolts.
Removal of the engine mount is also required to perform timing belt replacement. It also helps to increase your access room too.
I would recommend you replace the waterpump why you are there as they have a tendancy to fail at around 140000 km's.

Posted on Aug 03, 2009

  • 179 Answers

SOURCE: I need instructions on installing a water pump for

they do fail
plastic impellers snap off
awkward job with rad in way

Posted on Feb 28, 2010

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Water pump have anything to do with the fuel pump. Car will start run for a few sec then die. If you give it the gas it will stay running let off it dies. It a 98 regal supper charge


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How to change water pump in 1987 chevy nova


1. Remove mounting bolts and remove upper timing cover and gasket. Drain coolant into clean bucket.
2. Loosen the 4 water pump pulley mounting bolts. Loosen alternator adjusting and mounting bolts and remove the belt.
3. Remove the water pump pulley bolts and the pulley.
4. Remove the water pump inlet mounting bolt from the side of the block and then remove the 2 nuts attaching the pipe to the water pump. Remove the pipe.
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8. Water pump mounting bolts are torqued to 11 ft.lbs only. Also replace the O ring on the dipstick tube and coat it with oil before reinstalling.
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Location of fuel water seperator on a 2002 h1 hummer / vehical dies out./ cranks but will not run long, idles in park no problem till you drive it around time varies when it cuts out. milage 33,000 thanks...


The fuel/water seperator is located under the hood, driver's side, against the firewall. Black cap and 2 wires going to the bottom. The pump uses an optical sensor so yes, if there was fuel, it would really screw with the system. However, the PMD on these were problematic. This is the control module that is mounted to the side of the injector pump. They have a kit you can purchase to get it away from high heat and will comew with the harness and all to extend it. Would you like a 2003 shop manual for this?

May 07, 2011 | 2002 Hummer H1

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My water pump burst on the road. the engine still starts but there is a spinning noise. Will I also have to replace the timing belt also?


Replace that water pump right away. I don't see why you'd need to replace the timing belt, unless you're saying "burst" as in, "It blew the gasket to horror and back". Just to be certain, pull out your dipstick. If it looks milky, drain your oil, and replace it. If not, get your new water pump, the spinning, IMHO, is most likely the bearing in the water pump just died.

Oct 01, 2010 | 1998 Dodge Neon

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How Do i replace Water Pump on 98 Chevy Metro


  1. Remove the negative battery cable.
  2. Drain the engine cooling system.
  3. Remove the air cleaner assembly.
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  11. Remove the water pump pulley (four bolts).
  12. Remove the timing belt.
  13. Remove the oil level indicator (dipstick) guide tube.
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      4. Finger-tighten the four bolts.
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