quick question here, I was at one of the lube place and one of the guy was cleanning nissan altima 99's engine and only thing coverd were, alternator and distributor cap. He covered both of this with plastic bags and started cleanning up with water and some spray. Is this enough to cover up before spraying water on the engine ? or i should cover more than this ., Please advise.

 

yeah i think thats about right...no water on
dizzy/spark plug holes (Top of valve cover)
or alternator...and you should be fine...now dont go crazy though...
keep it to the minimum...just enough water to scrub/rinse the mess...
good luck

 

the only thing you really need to cover is your dizzy

https://honda-tech.com/zero...age=1