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Old 22nd August 2019, 08:11   #1
skinnyL
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Default Engine cooked

Rover 75 v6 2.5 conn tourer. Beautiful condition

I had recent problems last week after having a radiator replaced. Previous to this I have kept losing water after booting the car to overtake, engine temperature using 19-7 going from 94-111degC and really knowing where the leak was, but generally around the oil cooler area which appeared to be ok hence the radiator replacement.
I travelled approx. 50 miles and had to fill up with water around 4 pints and the same on the way home then I had the problem of the engine temp going up to 130deg C. Into garage to confirm problem and yes I gasket gone and possibly the other, decided I would scrap the car as too expensive but garage states he may be able to recover the situation by adding a product to the oil which may/should seal the gasket/s and resolve the problem. I am a wee bit worried if this would work, even in the short term and would ask anyone on their thoughts please.
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Old 22nd August 2019, 08:18   #2
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Does sound like a Garage to posssibly avoid ..



putting stuff in to help ?


And Don't leap to the Rover...Headgasket diagnosis from them either ..
Although the 130 degrees is not good there are many other places where water can be lost from on the V6 .
Did you get that temp from the on board IPK ?



Get a proper check and Diag from a More knowledgeable person before Scrapping your car .


So many have been lost due to improper info/diagnosis from "Experts" and dodgy garages


C
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Old 22nd August 2019, 08:33   #3
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The advice you'll get here is to fix the leak as first priority. Driving around without coolant is asking for trouble. Secondly, check that the radiator cooling fan works properly. Do the Demist Test and all that. When it's water-tight and properly bled (Follow the header tank lifting routine according the the Haynes manual. You do have a Haynes manual don't you?) When all this is correct, run the car and observe for problems. Avoid thrashing it until safe to do so. Come back here with any further queries. Avoid the garage suggestion. Nothing added to the oil will fix anything.



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Old 22nd August 2019, 08:51   #4
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Hi James,

I agree with my colleagues' advice. Here's your situation as I see it:
  • I doubt that you have head gasket failure (although you should not have allowed the temperature to reach 130 degrees).
  • 130 degrees suggests to me that your thermostat may not be opening.
  • When the radiator was replaced the system probably wasn't bled properly which introduces air locks which causes coolant loss and overheating.
  • As said, check that your radiator fan is working by doing the 'demist test' (no tools required).
  • DO NOT let your garage add ANY sealing potions to your engine. They will only cause more problems from which it will be virtually impossible to recover.
  • DO NOT scrap the car. We can guide you through the necessary tests and recommend repairs.

Don't go quiet on us James will you. Keep posting and let us know what's happening.

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Old 22nd August 2019, 14:10   #5
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Not another garage offering a drop of the bodgers delight! These "fixes" can have a short lifespan and are only temporary at best. They can do more harm than good. Only really any good to keep your old banger out the breakers for a bit longer, that's it.

Take advice offered by the more knowledgeable than me on here, they know what they're talking about.
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Old 22nd August 2019, 14:28   #6
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Add something to the oil ???? NEVER.

Was that the same garage that told you to replace the radiator ???-----

A car in BEAUTIFUL condition must NOT be scrapped.---
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Old 22nd August 2019, 19:28   #7
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Default Engine cooked

Thanks for all your replies.

This is the 3rd time I have tried to send this so hope it works, other 2 times just lost message so have rewritten.

The garage is not adding anything to the engine. The reason he suggested an additive was because I was going to scrap the car as it would be a too expensive repair re-gasketing.

He is going to have another look for the water leak especially around the oil cooler as that was where it was before and it was found to be the radiator leaking and the oil cooler area dry. He also mentioned the 'EGR' ?

He had carried out a 'DYE' test on the radiator and there is evidence of co2 in the coolant and that is why he said at least one head gasket has gone.
Plus it has creamy oil on the dip stick now where as before it was just creamy on the oil filler cap.

The belts, thermostat and water pump were replaced approx. 3/4 years ago.
I did carry out a 'demist test' and the fan ran very fast and it has the gold resistor fitted, this was prior to the replacement radiator.

When the radiator was replaced 19/7/2019 the car ran sweet, the temp 84-93degC and the air conditioning was cooler. But after a week the engine temperature fluctuated between 94-111deg C which I feel was due and always has been to overtaking and the pressure built up with consequent coolant loss. Never any water in the 'V'. Nor around the radiator.

My problem is I am not aware of a Rover specialist in this area so I have to rely on my garage whom I may add has always been very helpful thorough and reasonable.

So shall await word from garage mon/tues next.
Many thanks
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Old 22nd August 2019, 20:20   #8
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Hi James; thanks for your detailed reply. I hope the following will reassure you.
Quote:
Originally Posted by skinnyL View Post
He also mentioned the 'EGR' ?
I think you've got that wrong. EGR stands for exhaust gas recirculation which your car doesn't have.
Quote:
He had carried out a 'DYE' test on the radiator and there is evidence of co2 in the coolant ...
These mystery liquids which change colour are a favourite of some garages. They always seem to give a negative result. I would not rely on them unless accompanied by other conventional symptoms.
Quote:
Plus it has creamy oil on the dip stick now ..
OK, mixing of oil and coolant can happen in two ways on the KV6:
  • Oil cooler failure.
  • Head gasket failure.
The way to find out is to temporarily by-pass the oil cooler. You'll obviously have to remove all traces of 'mayonnaise' from the lubrication system and cooling system before test driving the car with the oil cooler by-passed.
Quote:
When the radiator was replaced 19/7/2019 ... the temp 84-93degC ... But after a week the engine temperature fluctuated between 94-111deg C which I feel was due and always has been to overtaking and the pressure built up with consequent coolant loss.
No. I think it's because whoever fitted the radiator didn't bleed the cooling system properly because they didn't know about the special procedure.
Quote:
My problem is I am not aware of a Rover specialist in this area so I have to rely on my garage ...
You've done the right thing coming to us James. We are Rover 75 specialists. You now have some advice to help you and your garage solve your problem. I hope it isn't a head gasket.

Simon
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Old 23rd August 2019, 19:07   #9
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As Simon said in the above post bleeding the system correctly is VITAL to its correct function.---


Any air left in and it WILL overheat.---
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Old 24th August 2019, 14:14   #10
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Quote:
Originally Posted by COLVERT View Post
Add something to the oil ???? NEVER.

Was that the same garage that told you to replace the radiator ???-----

A car in BEAUTIFUL condition must NOT be scrapped.---

Why not? There's plenty of oil additives to that won't harm an engine. Most times they're just unnecessary. Adding stop leak to coolant is a bad idea though.


Anyhow, the garage is funny. How are they going to stop a head gasket leak by adding something to the oil?
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