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Cleaning the engine, what parts don't like water?

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turbopete

Tug Driver
Joined
Jun 28, 2002
Messages
903
I am getting ready for the car show tomorrow. What pieces and parts don't like water spray or degreaser?
Thanks.
 
alternator, air filter, fan delay relays aren't sealed.
 
Cover or take off the MAF. If you take it off, I would recommend you seal pipes/ tube at both ends with baggies/ rubber bands not to get water there too. Cover MAF connector if removed.
 
coil pack and plug wires.

engine degreaser products can cause ugliness to aluminum parts. be careful what you spray on there....

Bob
 
Meguiars SafeDGreaser is pretty mild on underhood AL and other components. My forumla is SafDgreaserr and then followed by hyper dressing.
 
I am getting ready for the car show tomorrow. What pieces and parts don't like water spray or degreaser?
Thanks.

if the cars in good shape water will do no harm-------virtually all cars are designed to operate in the rain------think about what happens under the hood when you are traveling along the highway at 60 MPH in the rain following a semi-----if your car couldn't deal with a simple washing it would never be able to travel in the rain-------you can hold a garden hose on a good alternator and totally flood it and it will have no effect------stopped or running...........RC
 
Unless the compartment is very dirty I just use Simple Green and an old terrycloth towel. Don't have to worry about messing up any electrical stuff. I would not power wash the engine but if the frame needed it you could wrap the engine in heavy plastic and blast away. I did that to under my hood of my old car to get years of gook off it. Messy.
 
Unless the compartment is very dirty I just use Simple Green ..............

Simple green has to be one of my favorite cleaners of all time. When prepping a fire truck for judged competition I head over to Home Depot and pick up about 6 gallons of the stuff. Load it into one of those pressurized garden sprayers and go to town. EVERYTHING except the external paint gets the Simple Greened and Powerwashed (inside, underside, engine, tools, etc. Of course everything also get dried, polished, and waxed just like a 53,000 Lb show car full of tools. Just be sure to rinse it real well, I heard that any residue left behind could be bad for aluminium.
 
I am getting ready for the car show tomorrow. What pieces and parts don't like water spray or degreaser?
Thanks.
just took an 87 gn with 24,000 original miles on it to the car wash and it was dirty dirty under the hood. well i left it running and sprayed it down with simple green max and soaked it real good every inch of the compartment and all aroung the engine and fan and firwall. then hosed it down then took it home and soaked the compartment and engine with interior dash shine stuff i forget the name its like armor all but it is clear like tire shine. then after an hour i wiped the firewall and rad support down with a rag and theis compartment looks like it came off the shoroom floor. GOOD LUCK MY FRIEND
 
simple green is the best cleaner I've ever used... at work on industrial equipment.

It'll work great if you want to have your paint and metal dried out, white, and dull working.

Bottom line is this: don't use simple green on a car. There are great degreasers that don't dry out paint, white it up, or make everything dull. If you care how it looks, use something like the aforementioned mcguires degreaser.
 
:confused: I've never had any issue with using Simple Green to clean my engine compartment. Nothing in my engine compartment has turned "white and dull", painted or bare metal. Maybe if you left puddles of it laying around on items it would react with them but I just spray it on and wipe it off.
 
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