De-coke fluid anyone?
Discussion
Hi I have an X3 with carbon build-up has anyone tried a fuel additive/spray successfully to remove/reduce this? - and if so what was it?
The garage reckon its a head-off job or remove the swirl flaps but have suggested we try some jollop first for a while. The car gets driven reasonably hard its no Tesco Queen.
Any advice regarding products would be welcome.
The garage reckon its a head-off job or remove the swirl flaps but have suggested we try some jollop first for a while. The car gets driven reasonably hard its no Tesco Queen.
Any advice regarding products would be welcome.
Missingbadly said:
Hi I have an X3 with carbon build-up has anyone tried a fuel additive/spray successfully to remove/reduce this? - and if so what was it?
The garage reckon its a head-off job or remove the swirl flaps but have suggested we try some jollop first for a while. The car gets driven reasonably hard its no Tesco Queen.
Any advice regarding products would be welcome.
Terraclean in your local area. Melts all the rubbish in the intake system . highly recommend The garage reckon its a head-off job or remove the swirl flaps but have suggested we try some jollop first for a while. The car gets driven reasonably hard its no Tesco Queen.
Any advice regarding products would be welcome.
Done mine recently, took the inlet off and the EGR. This made it fairly easy.
http://www.amazon.co.uk/gp/product/B00DZGGU28?psc=...
ETA: I also was going to do the flaps, but they'd been done.
It's not a hard job, just took a bit of figuring out what to undo etc. You need to take the strut brace off for ease of access. I took the EGR off whilist it was still attached to the manifold, otherwise, it's bloody hard to get to the bottom 2 nuts.
http://www.amazon.co.uk/gp/product/B00DZGGU28?psc=...
ETA: I also was going to do the flaps, but they'd been done.
It's not a hard job, just took a bit of figuring out what to undo etc. You need to take the strut brace off for ease of access. I took the EGR off whilist it was still attached to the manifold, otherwise, it's bloody hard to get to the bottom 2 nuts.
Edited by illmonkey on Tuesday 3rd February 13:41
Only way is to remove the inlet and walnut blast the valves, bmw do this themselves any fluid added to the fuel system will do nothing as direct injection, so never see's the inlet valves, and any directed through the air inlet won't be strong enough to remove the coke, minis are prone to this and I had mine done at an independent for £150, bmw/mini obviously wanted a lot more.
As an added note I tried seafoam first which if you watch YouTube vids does wonders, but nothing out of mine when I restarted it, when I had it blasted I could see how bad the valves were coked up so addatives were a useless option.
As an added note I tried seafoam first which if you watch YouTube vids does wonders, but nothing out of mine when I restarted it, when I had it blasted I could see how bad the valves were coked up so addatives were a useless option.
Edited by rigga on Tuesday 3rd February 14:04
This may or may not work - but no indication at all if its for petrol or diesel:
http://www.ebay.co.uk/itm/ECOTEK-POWER-BOOSTER-ENE...
http://www.ebay.co.uk/itm/ECOTEK-POWER-BOOSTER-ENE...
Missingbadly said:
This may or may not work - but no indication at all if its for petrol or diesel:
http://www.ebay.co.uk/itm/ECOTEK-POWER-BOOSTER-ENE...
One of these while you're at it?http://www.ebay.co.uk/itm/ECOTEK-POWER-BOOSTER-ENE...
http://www.ebay.co.uk/itm/8A-100W-12000RPM-Car-Ele...
illmonkey said:
12000rpm?? Jeeeees!Missingbadly said:
illmonkey said:
12000rpm?? Jeeeees!How does the inlet manifold look? Are the swirl flaps all gummed up? I would think cleaning them up first would help. My wifes 120d had a similar issue, and once the inlet manifold was off and we could get a good look at the intake valves, they wernt actually that bad.
The manifold itself was cleaned up really nice, I think all it needed was a good soaking in parrafin / kerosene as it was more greasy deposits as opposed to hard carbon. The swirl flaps wernt closing properly leading to poor idling (like it was running lean)
If the valves did need cleaning, then a possible way to do it was to work on a cylinder each time; get a given cylinder to TDC, fill up with some sort of cleaning fluid (the chap who did the work on my wifes car had previously used brake fluid, but I'm not certain that is usefull...), let it soak then suck out the fluid with a syringe, then carefully wipe away the residue. Repeat if required else move onto the next cylinder.
The surest fire way though is to have the head off, and valves out. I was all prepared to go down this route but we didnt need to.
The manifold itself was cleaned up really nice, I think all it needed was a good soaking in parrafin / kerosene as it was more greasy deposits as opposed to hard carbon. The swirl flaps wernt closing properly leading to poor idling (like it was running lean)
If the valves did need cleaning, then a possible way to do it was to work on a cylinder each time; get a given cylinder to TDC, fill up with some sort of cleaning fluid (the chap who did the work on my wifes car had previously used brake fluid, but I'm not certain that is usefull...), let it soak then suck out the fluid with a syringe, then carefully wipe away the residue. Repeat if required else move onto the next cylinder.
The surest fire way though is to have the head off, and valves out. I was all prepared to go down this route but we didnt need to.
Edited by thatdude on Tuesday 3rd February 15:12
thatdude said:
How does the inlet manifold look? Are the swirl flaps all gummed up? I would think cleaning them up first would help. My wifes 120d had a similar issue, and once the inlet manifold was off and we could get a good look at the intake valves, they wernt actually that bad.
The manifold itself was cleaned up really nice, I think all it needed was a good soaking in parrafin / kerosene as it was more greasy deposits as opposed to hard carbon. The swirl flasp wernt closing properly leading to poor idling (like it was running lean)
I will look at that first, thats a good point. The garage suggested removing them to help but I doubt they have assessed their gumminess. The manifold itself was cleaned up really nice, I think all it needed was a good soaking in parrafin / kerosene as it was more greasy deposits as opposed to hard carbon. The swirl flasp wernt closing properly leading to poor idling (like it was running lean)
illmonkey said:
GC8 said:
illmonkey said:
There was a 16000rpm one, didn't think you could handle it.
Doesn't it need to be closer to 160,000rpm to work?I was suggesting the stuff he's going to spray into the cars AIR intake is probably as bad as the electric fan.
Missingbadly said:
I will look at that first, thats a good point. The garage suggested removing them to help but I doubt they have assessed their gumminess.
I understand lots of people have removed them, but it may / will (not sure which!) affect the running of the engine at low RPM, as the engine is potentially drawing in more air than it thinks it is. I dont know what else is required but I dont think its as easy as removing the swirl flaps, there must be some reconfiguration of the fueling required to make up for the extra air now being drawn in. Gassing Station | General Gassing | Top of Page | What's New | My Stuff