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16th April 2019, 11:42 | #1 |
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ROVER 75 Join Date: Apr 2018
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when coldish i bleed the system by taking top off header tank and revving and observe speed of coolant. is this okay to do? i have to top up when it throws out the coolant. defo see coolant bubbling out of header cap only after higher revs. then i have to top up. i is not huge amounts and i am not over filling as the line is clear to see in the bottom of header tank.
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16th April 2019, 12:12 | #2 |
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Rover 1.8T Tourer Join Date: May 2007
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I would suggest that whilst running the engine, once the heated water rises to the neck of the filler put the cap on, switch off the engine, allow to cool then check the level.
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10th June 2019, 12:07 | #3 |
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Spencer, your mailbox is full.
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16th April 2019, 14:21 | #4 | ||
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Quote:
In the 1.8 I've never observed the flow of any coolant from the head vent which enters the neck of the header tank, nor the invisible co-vent hole that's hidden from view. This is so even when revving hard. However, a few owners of the V6 report significant flows from here when revving. They see two streams. Notwithstanding, the small bore pipes involved are for venting air from the head/heads and not for coolant circulation. Quote:
If revving the cool engine causes coolant to be ejected when the cap's screwed down it is not a good omen IMO. Something is creating a coolant pressure exceeding 22psi and the pump can't do that. TC Last edited by T-Cut; 16th April 2019 at 14:24.. |
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16th April 2019, 15:07 | #5 |
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Rover 75 Tourer Join Date: Feb 2018
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I had a similar problem to the OP, in the end I bought a Vacuum refill kit. I'd highly recommend it if you have a compressor big enough to handle it.
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