Does anybody know were I can find some good info on the right way to do this or has anyone out ther done it themselfs and have any tips for me I’ve been told that it’s good for cleaning out the engine and works really well.
hello ? ttt
my friend did this. he stuck atf in his vacuum hose. it’s supposed to clean the carbon deposits. i guess it kind of works but you’ll be puffing out white smoke for a while
Its a detergent base so its going to clean it out for sure. I did this once by accident when I was a freshcut honda mechanic back in the day and the senior techs just smiled and said it would be ok. Dont know how well it works tho.
thederrickm :getsome:
I heard about it too, but wasn’t successful. I guess i used the wrong hose or something.
Originally posted by N FUL FX
I heard about it too, but wasn’t successful. I guess i used the wrong hose or something.
lol neil. we’re talking about hoses found on cars
Damn no wonder I got hydrolock! :crazy:
i know that type f trns fluid can be put in your crankcase as a engine cleaner. its an old hotrodder trick. your supposed to put 1 quart of type f to your other 3 quarts of oil and run it for up to 1000 miles in the crankcase and it free’s up grime and oil cocaning (sp) it works really good on engines with hydraulic lifters bu cleans passages also. i never heard of it as a carbon cleaner though. i did a motovc on my car to clean the carbon. it made a big difference. but you can use this stff called sea foam all you do is take the can of sea foam and suck the fluid in through the brake booster hose till its half 2/3 empty then suck the last bit in fast and stall the engine or shut it off. let it sit or a half hour then go out and drive it. it will smoke alot but the more it smokes the more sh:t it cleaned out of the combustion chamber. it will improve perf. and gas mileage. due to the carbon , soaks up fuel like a sponge and eats up gas. hope some of this helps…
The method I have read for cleaning carbon deposits inside the combustion chamber:
pull spark plugs
pour ATF into cylinders
let it sit overnight
get turkey baster or pump, etc.
suck as much fluid out as possible
put back spark plugs
start up car
make big smoke screen for neighbors
enjoy cleaner engine
I have also heard about people having success with the 1 quart ATF / 3 quarts motor oil in the crankcase.
I have heard this causes oil leaks in some older vehicles which have engine deposits helping to seal the engine though. It also might lower your compression ratio a bit if you have a carbon farm on your pistons. Carbon farms can cause some undesirable heat retention which leads to a greater chance of detonation. So getting it off is a good thing. ya.
we used to bring apex seals back to life for like a week by using atf i know that works as well.
I always thought apex seals were spring steel like piston rings. Shows you how much I know about how rotories work. Good info to know in case I run across a mazda owner desperate to sell for way cheap.
I have also read a lot of posts around the web that say mineral oil is in many commercial “cleaning agents.” I would stay away from any and all commercial additives and cleaning agents- Oil and gas that is. Unless you do your research first so you know what you’re in for.
The method I have read for cleaning carbon deposits inside the combustion chamber:
pull spark plugs
pour ATF into cylinders
let it sit overnight
get turkey baster or pump, etc.
suck as much fluid out as possible
put back spark plugs
start up car
make big smoke screen for neighbors
enjoy cleaner engine
well first, is this method guarenteed not to destroy my engine? and 2… what is atf, sorry for being naive, but i havent seen it explained so far? all i know is that its some kind of detergent.
so if somebody could give me a better explaination, id appreciate it, thx
atf is just automatic transmission fluid. Some people unplug a vacuum hose off your intake and let the vacuum suck up the atf. They say it helps clean the carbon from your manifold. This usually makes your car smoke pretty bad. They actually have products that will do the same thing, so it’s up to you.
Hey thanks guys, I’ve herd about and tried the vac. hose version of this but did’nt notice a differance I also read how the rotary version works so what mos said makes sense. The version that dattegbol mentioned I had never herd of but sounds like a good idea to thanks for all the Info and if anyone else has anything post away man I like to get as much info as possible 
so if i try the spark plug method, how much atf do i pour in? i assume atf was auto tran fluid, but wasnt sure…
How much you put in depends on how much you want to clean. If you’re just intrested in cleaning the piston tops, then just put in a little bit. If you also want to clean your valves you fill the combustion chambers up to the top. I guess you could do one or two at a time and crank the engine to clean some of the valve stem, not just the face. The stem is where carbon builds up a lot of the time, right at the base. Just where it can harm your airflow the most. I’ve seen people post photos of old valves where it looks like someone took a big terd right on the valve stem. Not good. Like a chunk of coal killing your horsies.
all right, im gonna do this tonight… so this is what im gonna do…
since i want to clean the whole engine, im gonna start from left-right, or should i go for plug 1, 2, 3, 4? anyway, i fill the chamber to the top, crank the engine. go to the next, fill to the top, crank, and so on until i get all the chambers. now im gonna let the car sit over night, and in the morning im going to suck everything i can out of the chambers, and then run the car until it stops smoking, correct?
is there any special sort of atf i should use?
thx
i don’t know about this as a carbon cleaning method. but if you do do it i suggest change the oil the next day cause i’m sure some will leak past the rings. i know the reason they use “type f” tranny fluid is cause its thick and has very good cleaning properties. atf sounds to thin to me. i’d check the local parts store for any of these carbon cleaners first. top engine cleaner (napa, or gm dealer) sea foam (napa), or run rite. all three of these work well i used sea foam on my moms car cause the pulse width of the inj were 3.5ms at idle when the avg. pw at idle was supposed to be 1.5ms to 2.0 ms , so my conclusion was that it was carbon build up. so i took the vac. hose off the brake booster etc… (as in other reply) and after the carbon cleanse the inj. pw was within spec and gas mileage was better and the car didn’t hesitate anymore… the actual carbon cleaner is prolly around the same price as a quart of atf maybe a few bux more, so i’d stick with that.
yeah, i think the sea foam sounds like a more sound idea to me…
now can i use just any vacuum hose? or should i use the one for the brake booster? – the reason i ask is because i dont know what the brake booster is
and does the sea foam, etc have instructions on how to use it?
The brake booster is disk behind the master cylinder.
thederrickm :getsome: