Omega Owners Forum
Chat Area => General Car Chat => Topic started by: Webby the Bear on 12 July 2014, 15:23:23
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http://www.youtube.com/watch?v=KFtp_jmLF3k
Never heard of this before. What's OOFs thoughts?
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On an allied topic, does anyone use Redex UCL any more? And did it ever work?
Ron.
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periodical cleaning on a low mileage new-ish engine ok.. high mileage engines =trouble
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I regularly used to 'decoke' my 2 stroke motorcycles.
I would take the carbon from the top of the piston and the exhaust port with a 2p piece.
After pulling out the baffles, I would use caustic soda in the exhaust with a potato shoved at one end to stop it coming out. The spannies got very hot. :y
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Water?
No! Just.... No!
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It was a very basic old lump he uses in the demo, that you could probably pour tar in and it'd still go! ::)
A modern engine? No way!!
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A modern engine shouldn't need decarbonising anyway. Fuel injection, mapped ignition, modern oils, tighter machining etc all make it much less of a problem.
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A modern engine shouldn't need decarbonising anyway. Fuel injection, mapped ignition, modern oils, tighter machining etc all make it much less of a problem.
What he said. Carbon buildup is a myth these days. It doesn't happen.
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What a load of old tosh...by the look on his face he was not sure if the engine was going to cut out and afterwards he had only used the water down to the first rim on the beaker...i bet he drank the rest...utter rubbish and not needed what so ever. :o :o
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Yeah I was watching it thinking ??? ??? ???
Obviously steam cleaning does work on things like drive ways lol but how is a bunch of water going to help? The temps in the engine are very high anyway so would have thought there wouldn't be any build up anyway :-\
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Yep, in the good old days you needed to de-coke regularly, now you seem to just have to change a cam belt, and they call this progress............. :D :D :D
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When the head gasket on my 24 valve Senator failed & let water/coolant into No 6 piston, that piston crown was sparkling clean! :y :y :y
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On an allied topic, does anyone use Redex UCL any more? And did it ever work?
Ron.
Used to do just that, years ago with Redex, take the air filter off and pour into the carb air intake slowly, the smoke and crap that would come out................ :D :D
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For that to work, in theory, the water needs to vaporise into steam, so we talking about 100+ C degrees, no way is it going to reach them temperatures on the inlet side side of the intake, might get there when in the combustion chambers which might help if your looking at rusting the inside of your exhaust system a bit quicker.
Might be a bit more convincing if the guy was to inject steam into the intake, but still not convinced, so its a no in my book.
Also guessing the guy is pouring water into a Carb system, they do tend to suffer more carbon build on the intake system side, rather than fuel injection which just builds up the crap it sucks in and more to the point the oil fumes from the eco designed crank case pressure release.
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A modern engine shouldn't need decarbonising anyway. Fuel injection, mapped ignition, modern oils, tighter machining etc all make it much less of a problem.
What he said. Carbon buildup is a myth these days. It doesn't happen.
obviously with an lpg-ed car you have to wait very very long ::) (may be never in this life time)
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original carbon clean is an expensive procedure :-\
http://www.youtube.com/watch?v=oLroOL3Lmsg
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I've opened up plenty of engines with 6 figure mileages and never seen more than a very thin coating of carbon on anything. This thin coating is actually good. It reduces heat loss from the charge in the cylinder into the piston and head, making the engine more efficient and reducing the temperature of the pistons. Modern engines do not need any form of decarbonising full stop. Snake
oil water.
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I've opened up plenty of engines with 6 figure mileages and never seen more than a very thin coating of carbon on anything. This thin coating is actually good. It reduces heat loss from the charge in the cylinder into the piston and head, making the engine more efficient and reducing the temperature of the pistons. Modern engines do not need any form of decarbonising full stop. Snake oil water.
Kevin you may have opened some number of engines which may be serviced properly.. I have seen numerous old engines with real crud in mechanic shops.. and also once they are free of this carbon buildup it looses power. first hand experience.. not google..
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Normally its the back of the valves that get the worst of the carbon build up and this can really affect performance as it affects flow.
I would be more interested if it could clean the crap of the inside of my intake manifold (due to the EGR) without me having to take the thing apart. Trouble is I don't believe it would work and would just be a waste of time and money. Sometimes the only way to do things is to pull the engine apart and do it manually.
Oh what fun! :(
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
Yes, anything with a reasonably efficient head design and fuel injection. In fact, I'd go as far as to say that the late carb engined cars were still pretty decent, so we're going back to vintage cars before the need for a regular decoke existed IMHO.
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
obviously.. the only addition to modern engines are variable valve timing that the omegas dont have..
but practically it creates more trouble (buy adding to the maintenance cost) than it brings..
I have seen numerous bimmers with faulty vanos unit that were never repaired properly.. :-\
also on new-ish renault engines -called de-pahser pulley- its a frequent change item at 60 k km intervals ??? (although the service dont admit)
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
Yes, anything with a reasonably efficient head design and fuel injection. In fact, I'd go as far as to say that the late carb engined cars were still pretty decent, so we're going back to vintage cars before the need for a regular decoke existed IMHO.
Got ya :y
Well, i've took apart lots of engines in the workshop but i dont recall any carbon build up... or their age. ::)
i have however had the omega stripped down and rebuilt. the only thing i noticed was some on the valves. but surely i'd expect that from a cylinder head that had been in their 13 years? and even though there was some it wasnt as though the valve operation was compromised. flow, perhaps... but thats another story.
how on earth would water get this age old built up carbon off? ::)
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
Yes, anything with a reasonably efficient head design and fuel injection. In fact, I'd go as far as to say that the late carb engined cars were still pretty decent, so we're going back to vintage cars before the need for a regular decoke existed IMHO.
Got ya :y
Well, i've took apart lots of engines in the workshop but i dont recall any carbon build up... or their age. ::)
i have however had the omega stripped down and rebuilt. the only thing i noticed was some on the valves. but surely i'd expect that from a cylinder head that had been in their 13 years? and even though there was some it wasnt as though the valve operation was compromised. flow, perhaps... but thats another story.
how on earth would water get this age old built up carbon off? ::)
a proper pressurized water can cut through steel let alone cleaning ::)
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
Yes, anything with a reasonably efficient head design and fuel injection. In fact, I'd go as far as to say that the late carb engined cars were still pretty decent, so we're going back to vintage cars before the need for a regular decoke existed IMHO.
Got ya :y
Well, i've took apart lots of engines in the workshop but i dont recall any carbon build up... or their age. ::)
i have however had the omega stripped down and rebuilt. the only thing i noticed was some on the valves. but surely i'd expect that from a cylinder head that had been in their 13 years? and even though there was some it wasnt as though the valve operation was compromised. flow, perhaps... but thats another story.
how on earth would water get this age old built up carbon off? ::)
a proper pressurized water can cut through steel let alone cleaning ::)
i meant in the way that the chap on the vid was pouring the water in
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When we talk of ''modern'' engines i'm assuming the omega comes under that umbrella?
Yes, anything with a reasonably efficient head design and fuel injection. In fact, I'd go as far as to say that the late carb engined cars were still pretty decent, so we're going back to vintage cars before the need for a regular decoke existed IMHO.
Got ya :y
Well, i've took apart lots of engines in the workshop but i dont recall any carbon build up... or their age. ::)
i have however had the omega stripped down and rebuilt. the only thing i noticed was some on the valves. but surely i'd expect that from a cylinder head that had been in their 13 years? and even though there was some it wasnt as though the valve operation was compromised. flow, perhaps... but thats another story.
how on earth would water get this age old built up carbon off? ::)
a proper pressurized water can cut through steel let alone cleaning ::)
i meant in the way that the chap on the vid was pouring the water in
forget that chap.. just google steam cleaning..
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A mate has a Mini(not) Cooper S petrol, '56/'07 iirc and apparently it has a Peugeot engine which is prone to coking, requiring a clean every 60k or so...
Principle discussed here...
http://www.youtube.com/watch?v=cGYNuoCigGY&feature=kp