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8th June 2019, 23:25 | #1 |
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timing belt and water pump replacement
Hello everyone
I have a 2.0 CDTI ROVER 75 today I noticed that when I turn the A/C on in cool mode there is a noise as a "belt screech" that last for about 2 seconds and then disappear. 1) Have I to replace the belt? 2) Is convenient to mount a kit a complete auxiliary belt kit with tension pulley, ecc 3) if yes this kit should be good? https://m.autodoc.co.uk/gates/7593909 4) the water pump is connected to timing belt? if yes, is convenient to change it too? 4) what is the labor cost of mechanic? Last edited by squall89; 11th June 2019 at 06:51.. |
8th June 2019, 23:35 | #2 |
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Your low speed fan is not working, the noise you hear is the compressor overcharging, turn off your AC until you get the fan repaired or you can damage the compressor
Ciao
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9th June 2019, 07:05 | #3 |
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20th June 2019, 15:09 | #4 | |
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Important note about compressors
Quote:
Don't forget that in the event of refrigerant pressure rising to an excessive level due to lack of fan assistance, the trinary switch will disengage the compressor clutch which prevents damage. Simon
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20th June 2019, 15:51 | #5 |
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Has anyone come up with an answer as to the origin of the noise?
All I can think of is it being either a pressure relief valve, or the compressor being driven in reverse by the pressurised refrigerant once the trinary switch disengages the clutch. The compressor is a Williams Janney style constantly variable positive displacement pump, so if there was enough pressure on the pistons they could be driven back if the swash plate was still at an angle to the block. |
9th June 2019, 07:35 | #6 | |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
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Quote:
If the noise comes on straight away when you turn the aircon on then check the belt tension, and if it happens after some time then as Andy says check your engine cooling fan is working. I assume you have a petrol engined model? |
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9th June 2019, 11:25 | #7 | |
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Quote:
I have 2.0 cdti it happens 3 seconds after I press on A/C button |
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9th June 2019, 11:46 | #8 |
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In case you need it, here's the aircon drive belt - https://www.dmgrs.co.uk/products/rov...belt-pqs000180
Click the dropdown arrow and there's an option to buy the auxiliary drive belt as well. |
9th June 2019, 11:51 | #9 | |
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Quote:
https://m.autodoc.co.uk/gates/7593909 |
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9th June 2019, 12:01 | #10 | |
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Quote:
Let us know what happens. |
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