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Newbie here 2003 Mini CS. 130,000 Miles. Previous issues with overheating sorted ages ago ...recently showing signs of it again. On long journey on Friday sounds a poppin and a whiring and temp at full heat. Topped up water as reservoir was empty. Checked oil, was empty even though service was only a couple of months ago. topped up oil 1 L approx. And contd my journey home. 20 miles later ....knocking like a tap dancer trapped in car so pulled in to a hotel car park opened the bonnet and pardon my lack of motor knowledge but what I think was the second from left valve / spark plug cover had come loose and was moving up and down like a hi hat on a drum kit.

Bad light but video attached gives a idea....

Have I killed poor Susan!? Am I dealing with toast or is their potentially life in the old girl yet.....and at what price?

Help !!!!
Richard
 

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plug blow out? These like to spit plugs out it seems, it can be fixed, the plugs on these really need a couple of torque checks especially after new ones are fitted even when torqued new which not everyone does.

Some will say it can be helicoiled in situ and great, they might be lucky, really it wants the head off and doing or swapping for another head if it's a real mess, you need the head off anyway to check for cracks between the plug hole and valve seat which happens, some say this is why the plug comes out, personally I think it's a consequence, either way it should come off, basic parts £100, someone like me doing it £360 basic remove and refit, plus engineering £???, and associated work discovered or consequential £???, so easily done, just hard to price accurately, one can discover all sorts and if things that can further affect the engine will become a forced expense, nobody will re-assemble it knowing there are issues.

I tend to check cooling systems for blockages at the heat exchanger and typically flush out hoses if the coolant removed isn't blue or the coolant jackets are all rusty, many are, only cars using the correct blue coolant which is changed every three years ever appear to be rust free or free of orange staining etc.

If it's on 130k you would be very well advised to do a couple of other jobs while the head is off, like re-lap the valves and renew stem seals, more perhaps dependant on what things look like, doing stuff like this now will help avoid burnt valves, helps compression and efficiency/performance but most significantly reliability and longevity.

Just my 2p ;O)
 

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This is an easy fix for a specialist as the plug has blown out as it’s stripped the threads in the head.
If you pull the plug lead the plug will come out with it, the noise is because there’s no compression in that cylinder.

This happens because the spark plug was not tightened enough, too many people stop tightening them when they meet the first sign of resistance, but the washer built in to the plug has to be crushed by tightening it a bit more (about a quarter of a turn).

It can be fixed in situ (my brothers was) but if the damage is extensive the head may have to come off. The cost is around £150 in situ, with a heli-coil or something similar. If done right no contamination will enter the engine.

This is quite common. Check all your other plugs are really tight, I bet they aren’t, mine weren’t.
 

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Yup, poped #2 plug. It happens. Te oil level. May I ask - did you run the car for 2 months without checking the oil level? Where you using it during those 2 months? How many miles? If so that is not a good plan. Depending on milage, they need checking regularly - I probly look at mine at leasst once a week.
 
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