Bren Posted June 9, 2016 Share Posted June 9, 2016 Does any body know if there is anything that removes carbon from valves etc that can be sprayed into the engine? I mean for an oldie with no cat, egr etc. I am going to have a look at the granada at some point - at 27 years old I am mindful that it might be a bit gummed up and that is why performance is a bit down. I am not going to strip the top end to decoke - just wanted to see if anybody had used anything that had worked. I know that our American friends have something called seafoam that seems to have mixed results.The last time I tried anything like this was pouring redex into the carb on my Royale - the smoke had to be seen to be believed. My neighbours actually thought there had been an A bomb test in Widnes. Link to comment Share on other sites More sharing options...
Timewaster Posted June 9, 2016 Share Posted June 9, 2016 No helpful advice on the carbon, but redex smoke alone probably doubled global warming. I did it to a Mini once and the entire street disappeared in a white cloud! I only poured in a capful! Stevebrookman, anonymous user, Parky and 2 others 5 Link to comment Share on other sites More sharing options...
dollywobbler Posted June 9, 2016 Share Posted June 9, 2016 Isn't decoking something that just isn't necessary anymore due to better fuels? I never decoked my 2CV's engine in 170,000 miles - though regular Italian-servicing meant it probably never built much up... Did once give our Mini the redex treatment. Not sure it greatly enjoyed the experience! RayMK 1 Link to comment Share on other sites More sharing options...
Matt Posted June 9, 2016 Share Posted June 9, 2016 'ChrisFix' on Youtube has tested a few products that claim to do this sort of thing, and they do, technically. From his videos I don't think they really clean enough off for them to be worthwhile. Link to comment Share on other sites More sharing options...
STUNO Posted June 9, 2016 Share Posted June 9, 2016 27 years old and it has lost a few horses ? I am in the Dollywobbler camp with modern fuels, an Italian tune with a hot engine. I used to do that with my fast morris 1800 on the M1, the shit coming out the exhaust was monunental for a min or two the it settled down beautifully. chaseracer 1 Link to comment Share on other sites More sharing options...
sierraman Posted June 10, 2016 Share Posted June 10, 2016 Terra clean? Link to comment Share on other sites More sharing options...
Tamworthbay Posted June 10, 2016 Share Posted June 10, 2016 I can't remember the details but you can use water, I think you either spray it in or suck it through the vac tube. Link to comment Share on other sites More sharing options...
mrcitroen Posted June 10, 2016 Share Posted June 10, 2016 With the water trick, you slowly, very slowly pour around a glass down the intake. I have also heard of people using trigger sprayers too. Less chance of causing a hydraulic lock that way. No idea if it works though. Link to comment Share on other sites More sharing options...
RayMK Posted June 10, 2016 Share Posted June 10, 2016 With the water trick, you slowly, very slowly pour around a glass down the intake. I have also heard of people using trigger sprayers too. Less chance of causing a hydraulic lock that way. No idea if it works though. It may work. When a head gasket fails, letting coolant in to the combustion chambers in small doses, inspection after failure usually shows one or two very clean plugs and associated head areas (head gaskets rarely fail next to ALL bores). This helps identify the failure point(s). Link to comment Share on other sites More sharing options...
twosmoke300 Posted June 10, 2016 Share Posted June 10, 2016 I've heard of the garden must sprayer idea before . Sounds feasible but never seen it done Link to comment Share on other sites More sharing options...
danthecapriman Posted June 10, 2016 Share Posted June 10, 2016 I've heard of the water method too, makes sense when you look at failed head gaskets as mentioned above. Never tried it though. I just put some super unleaded into mine, maybe with a dose of Redex then take it for a fast motorway run. Seems to do the job ok. Link to comment Share on other sites More sharing options...
320touring Posted June 10, 2016 Share Posted June 10, 2016 get in it, let it warm up to tempdrive it like you had taken it without owner's consentmarvel at the plumes of crudpark up until the exhaust stops tingingdo it all over again. Italian tune ftw! spike60, gordonbennet, Jazoli and 6 others 9 Link to comment Share on other sites More sharing options...
castros_bro Posted June 10, 2016 Share Posted June 10, 2016 The carbon deposits are from incomplete combustion of the fuel and "stray" lubricant over a long period of time, your car engine is designed to keep the air/fuel ratio constant-ish (Stoichiometric point). To burn off the carbon deposits you would need to have excess oxygen for it to combine with BUT you cannot have this as the air/fuel ratio would then be different and the engine would not run. Washing with wonder chemicals can only dislodge the loose flaky deposits and not the burnt on crud. Italian tune up heats the burnt crap to past red hot which will also bump off the loose flaky bits. Magnificent Rustbucket 1 Link to comment Share on other sites More sharing options...
lisbon_road Posted June 10, 2016 Share Posted June 10, 2016 I've also taken heads off when the head gasket has gone and found one piston with a totally immaculate polished appearance presumably due to water getting in there, and the rest the usual black things you'd expect. So there must be something in the water approach. The HGF might have taken place over a long time though. Link to comment Share on other sites More sharing options...
steveo3002 Posted June 10, 2016 Share Posted June 10, 2016 the water method works well as you can see when you take apart a failed headgasket engine hold the car at say 2000 odd revs and dunk a vac hose into some water but make sure it can only take little sips dont let glug down a whole litre instantly , then take it for a blast and change the oil Link to comment Share on other sites More sharing options...
sierraman Posted June 10, 2016 Share Posted June 10, 2016 I'd be a bit wary about introducing water into the combustion chamber in any quantity? Link to comment Share on other sites More sharing options...
steveo3002 Posted June 10, 2016 Share Posted June 10, 2016 ^ thats why you let the vac hose take sips ...small amounts it can handle , but yeah tip a bucket full in and it will bend some rods Link to comment Share on other sites More sharing options...
Bren Posted June 10, 2016 Author Share Posted June 10, 2016 It was told that HG failure sometimes means the piston crowns are steam cleaned. Link to comment Share on other sites More sharing options...
gordonbennet Posted June 10, 2016 Share Posted June 10, 2016 I've seen those seafoam videos, still can't make me mind up iff someone's taking the piss to see how many berks fuck their engines up trying the same trick. Dunno, i've long been a convert to Millers additives in me Diesels, used it for years, everything tickety boo. Bought the V6 petrol Landcruiser last jan/feb, and whilst it runs very well i thought it felt as if it had more to give...anyway reading up on the engine those who've used them all over the world say they benefit from high octane fuel as found in Japan.The consensus seems to be that after a few tankfuls of the better stuff that the engine will run better, more power and better fuel...mind you at around 18mpg local running it's never going to sip the stuff. I'm a tight sod and reluctant to buy the top range petrol, so i had a look round and Millers do make a petrol additive, similar benefits to the Diesel stuff if you believe the blurb, cleaner injectors (so is it cleaning the carbon deposits in the combustion chambers up too) and raises the cetane rating by 2 points.Bought some, and indeed after a while unless its the placebo effect or wishful thinking it seems to have a noticeable increase in torque, can't comment on fuel i drive like a twat at the best of times, but it takes off like a scalded cat considering its a two ton brick.The stuff stinks exactly like the Diesel additive so avoid getting it on yer dainty mitts. I haven't found any independent test results for the petrol version but have seen the results of the Diesel additive being tested with Ricardo doing the engine tests and Milbrook being involved, so hardly joe's back street garage who flogs the stuff. I'll try to link it, if not i'll copy out the URL and hopefully someone with a brain can find it and link properly. http://www.seatcupra.net/forums/showthread.php?t=188065 Fuck me it copied and pasted, don't ask me how. Not trying to flog this stuff, nor suggesting that anyone else should try it, i know lots of people think these additives are snake oil and thats fair enough, but might be worth a look at as an alternative. saucedoctor 1 Link to comment Share on other sites More sharing options...
davidfowler2000 Posted June 10, 2016 Share Posted June 10, 2016 Yep. Water seems the best 'cos like folk say it's like steam cleaning your engine. Make sure the engine is hot and hold a high idle. Ideally a car with a heated intake manifold so the water vapourises before it reaches the cylinder otherwise just use a squeezy spray bottle. As mentioned above, don't let it take a big drink or you will hydro-lock it and burst conrods. Link to comment Share on other sites More sharing options...
Lacquer Peel Posted June 10, 2016 Share Posted June 10, 2016 What's good for quitening noisy hydraulic tappets? Link to comment Share on other sites More sharing options...
Bren Posted June 10, 2016 Author Share Posted June 10, 2016 Wynn's valve lifter treatment. Link to comment Share on other sites More sharing options...
Bren Posted June 10, 2016 Author Share Posted June 10, 2016 Failling that, Sawdust. Twiggy and myglaren 2 Link to comment Share on other sites More sharing options...
Tamworthbay Posted June 10, 2016 Share Posted June 10, 2016 What's good for quitening noisy hydraulic tappets? http://www.screwfix.com/c/safety-workwear/ear-defenders/cat850380 Lacquer Peel 1 Link to comment Share on other sites More sharing options...
gordonbennet Posted June 10, 2016 Share Posted June 10, 2016 What's good for quitening noisy hydraulic tappets? I always start with an oil change with some decent stuff made by Millers, Morris, Fuchs etc. Might have been tappets or timing chain, but daughters Aygo owned from new and serviced on time by the Toyota dealer with their choice of oil, sounded more and more like a skeleton wanking in a biscuit tin. Out of warranty now so last time she popped up drained the crap out, slipped a genuine Toyota filter in and new Morris' (if not Millers, i've got both here) fully synthetic life blood into it.Didn't sound any better really on start up, but i popped up the factors in it to get a new air filter (fucked if i know what the main dealer does at service time) cos the one in it was filthy, and when i got back it sounded a lot quieter to me, daughter comes and can't believe its her car ticking over quietly, still the same. Wish i'd put my oil in from day one now. All oils are not the same, i've had a household name brand oil fucked in 1000 miles in a previous Diesel Landcruiser, was severely bollocked by the now closed down Toyota Landcruiser specialist mechanic at Colleyweston who told me in no uncertain terms to drain that shit out and put some proper oil in, another lesson learned. Lacquer Peel and myglaren 2 Link to comment Share on other sites More sharing options...
Honey Badger Posted June 10, 2016 Share Posted June 10, 2016 Eric the car guy giving his car some little sips of H20 SiC 1 Link to comment Share on other sites More sharing options...
Twiggy Posted June 10, 2016 Share Posted June 10, 2016 Terra clean? Not at £100 a pop... Link to comment Share on other sites More sharing options...
Jifflemon Posted June 10, 2016 Share Posted June 10, 2016 For some stuff I'm a fan of forte treatments. Their diesel treatment was a guaranteed mot pass;Their oil flush would even clean out cvh hydraulic lifters back in the day. I'm intrigued by this water trick, shall have a little watch of that vid. saucedoctor 1 Link to comment Share on other sites More sharing options...
rainagain Posted June 10, 2016 Share Posted June 10, 2016 I did the water trick on a mk1 clio diesel. I rev'd the engine to ~2000rpm and then used a garden hose set on mist to add water to the inlet manifold. It did feel better after it. The garden hose on mist setting is used by a lot of people on the running your car on veg forum to keep the engine internals clean. Lacquer Peel 1 Link to comment Share on other sites More sharing options...
Noel Tidybeard Posted June 10, 2016 Share Posted June 10, 2016 one wonders whether an wallpaper steamer may be appropriate? djimbob 1 Link to comment Share on other sites More sharing options...
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