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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Water pumpViews : 2536 Replies : 33Users Viewing This Thread : |
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May 21st, 2013, 08:10 | #1 |
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Water pump
Hi guys
What would be the signs of a failed or failing water pump in a 940? Also, do you need to remove the rad to change the pump (haynes says yes, but just wondered since I've not long replaced the rad and coolant)? |
May 21st, 2013, 08:26 | #2 |
panic captain manwaring ?
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no need to remove radiator
signs are loss of coolant if you feel the botom of the pump after useing the car if its wet then chances are pump needs replaced.
Last edited by david philips; May 21st, 2013 at 08:35. Reason: error |
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May 21st, 2013, 12:08 | #3 |
Rogerthechorister
Last Online: Dec 16th, 2023 02:15
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Snail trail
You are also likely to see a snailtrail of limescale or similar deposit down the side of the block from the waterpump.
Longnose 7s you definitely do not have to remove the rad - dismantle the vicious fan (punintended) in situ. What the situation is on electric fan cars I'm not sure. All the water pumps are horrid to get snugged up with all seals correctly placed and watertight after installation. |
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May 21st, 2013, 12:21 | #4 |
Stay gold baby!
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Water pump replacement signs are either obvious water leaks, or if there is any slop/play in the water pump pulley (grab the fan and give it a rock if it's got one).
You don't NEED to remove the radiator, but seeing as you'll be draining the coolant anyway, you may as well, it makes access easier. Fitting the pump isn't as bad as some make out - there are two slotted holes on the pump body, fit these loosely first and the lever the pump firmly upwards against the cylinder head before tightening to make sure the top seal doesn't leak.
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May 23rd, 2013, 21:34 | #5 |
Rogerthechorister
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And
And make sure the little rubber O ring does not move while doing it, oh and then there's the little pipe from the back of it too...
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May 24th, 2013, 01:12 | #6 |
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Reccomend that after changeing the pump first fill the system with just water to check for leaks. Dont waste anti freeze that way if there is a leak
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