Anybody knows some that can be done at home? DB
you should never contemplate such an activity. it ruins electrical connections because it blasts moisture under seals, and ruins bearings, because it blasts dirt in. not to mention the water it gets into your brake master cylinder... if you have to "clean" under the hood, and reality is that you don't, as above, use a scrub brush and a gentle hose. nothing more.
That's interesting because after I bought my car from a bank with some 30+K miles in it and took it first time to a Honda dealer for service, they recommended and actually performed a steam cleaning on the engine. I drove over 200K miles since then without any major problems. As I recall the early '80s, several car washes used to have an engine steam cleaning station where I used to have my previous cars cleaned, also without any problems afterward. Did engines changed since then? DB
no, but i've done failure work on systems that have had exactly these problems and the facts are as stated before - electrical, seals and hydraulics.
I clean my engine with that green liquid at the car wash place as well. It gets rid of the grease and dirt pretty good.
It's a weird idea, as nobody gets to see the engine so why is it so important ? I don't know if engines have changed since then, but the idea of squirting pressurized water and/or soap around all those exposed mechanical and electrical parts just does not seem sensible at all, no matter what way you look at it.
probably a "2ner" that wants to lay about in a parking lot with the hood open letting the sun's uv rays destroy all his electrical and plumbing.
That is very interesting warning, because I own 1995 toyota camry with 246 thousands miles on the odometer and it gets once, sometimes twice a year engine cleaning with the pressurized soap and water... And guess what - no problems. I am sure nobody is putting the pressurized nozzle into the alternator vent holes or under the spark plugs covers aiming with the nozzle into the metal engine parts only keeping low pressure for the rest of stuff... The reason I do it is not for people look at my clean engine and admire it, because as some of you stated it is under the hood and not visible. The reason is for my own convenience to work on a clean engine so I will not look like a grease monkey after just replacing the air filter or so. I think that cleanliness is the condition for any good work on your car Other reason is that on a clean engine without a gray layer of dirt on all parts unexperienced mechanic like myself can easier recognise parts and spot some potential problems in advance just by looking at things. If something starts leaking you will have a better chance to notice it on a overall clean engine than on an engine which is normally greasy...
See... this is a bad analogy, because I am also not cleaning between the doors panels or inside permanently closed suspension profiles... I clean the engine compartment which I *often* visit to do my visual inspections, regular maintenance and possible repairs and I want this area to be relatively clean and in order. Dont get me wrong - I am not telling you why you should clean your engine and risk this horrible destruction to your wiring harnesses, bearings and seals I just state what I do with my cars and why I do it...
You described exactly my reasons for cleaning the engine. I figure that was also the thinking of that Honda service shop when they suggested it about 10 years ago. But I believe they used steam which is not as risky as using water under pressure. DB
based on your performance here to date, you wouldn't know a problem if it bit you on the ass. that's "inexperienced" and "recognize". don't you have spell checkers where you come from? other than that, inability to recognize parts is simply ridiculous. "clean" engines rust. ask tegger.
Let me put it this way - I got this car when it had 47k, now it has 246k. If there is a problem there and it still allows car to make happily 200k with the problem there than the problem is not that serious, agree? No, I do not. Do you have a problem with that? You are fee to have the opinion. Where do they rust? Can I see this rust?
They corrode wherever exposed metal is (steel, iron or aluminum). In a North-eastern climate you will get LOTS of corrosion on a clean engine. It'a actually better in those cases to leave oily grime on to prevent corrosion, especially on electrical connectors and bare aluminum. My engine bay has been treated with the "drippy" rustproofing every year since new. It's a horrible mess and filthy to work on, but there's zero corrosion wherever the oily film has managed to stick. It's that fact which prevents me from getting the engine bay cleaned, as much as I'd like a clean engine bay.
vapor [steam] penetrates where liquid can't. temperature can be a factor also, but the effect of that depends on the material in question. the steam used for cleaning is typically super-heated and many electrical insulator vinyls tend to have problems once you get above 100'C.
And? How is it a problem? I would not be surprised if the temperature in the engine compartment crosses 100'C on a regular basis (every sunny summer Nevada day during iddling in the traffic). Cables will survive steam just fine, no problem. p.s. is what you have written here a guesswork or you have a reputable source of this fears of yours?