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Detailing & Appearance Discuss washing, waxing and detailing information as well as interior/exterior cosmetic modifications. This includes neons, body, cosmetic wheels, etc. Even under the hood detailing.

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Old 01-13-2004, 02:24 PM   #1
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Default Detailing the engine

What is the proper "safe" way to degrease the engine without spraying something your not supposed to........Be patient I am a beginner.
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Old 01-13-2004, 06:48 PM   #2
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Simple green makes an engine degreaseer, Ithink. Also, I have haed of people using orange clean.... basically, you spray on, let sit, then wash of with a garden hose.
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Old 01-13-2004, 07:08 PM   #3
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when I wash it off do I have to cover anything up?
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Old 01-13-2004, 07:18 PM   #4
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I don't spray anything to keep mine clean just so I don't have to worry about anything. But I think the biggest things to worry about are the ignition coils. Maybe the MAF sensor..? Someone correct me if I'm wrong
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Old 01-14-2004, 03:38 PM   #5
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There are people of all sorts who have cleaned their engine in many different ways. Many just spray on the degreaser, let sit and hose down, without any regards to ANYthing under the hood.
I don't see how that can be too bad a thing when you consider that the engine and its components are all in the open air and water splashes all over them whenever it rains and when you go over a puddle of water.
When it came time for me to wash my engine i bought a can of EngineCleen or whatever brand you like and first covered many of the engine'* important parts. Here is what I covered:

I TAGGED and removed the plug wires from the spark plugs and from the ignition coils. I didn't take them off of the engine but I just tagged them and wrapped both their ends in plastic baggies with a rubber band at the bottom. This would work same if you just wrapped them in some regular plastic wrap, just remember that the wrap may come off with the pressure of the water so do becareful. Then i removed the intake all the way to the throttle body (my intake hose has the MAF sitting in the middle of it). Then I wrapped the throttle body'* opening with plastic wrap and put a rubber band around that to hold it down. Finally I put plastic bag aroudn the ignition coils to keep them dry and I wrapped some plastic aroudn the various wiring harnesses that had now been removed (aka the plugs from the MAF, the air temp sensor), although this may not be necessary. Finally I baggied all the spark plug ends coming out the block.

Next I applied the degreaser liberally and especially on the extremely dirty spots. Waited a while and then hosed it all down.

It wasn't as clean as i had hoped but it was alright.
Some notes:
After it was all done I noticed the accelerator pedal was REALLY hard to push down. This was because the degreaser had degreased the accelerator linkage spring which is hooked to the throttle body. A little WD-40 fixed that right up. Also, I bought a can of Belt Dressing to make sure my serpentine belt was in good shape and to be sure the degreaser hadn't affected the belt.

If yours is like mine then your intake hose has a metal tube coming out of it going to the bell housing cover. Not sure if your bonnie has it but just make sure that if you do have it, and after removing the air intake hose the tube is sitting there wide open for things to go into it that you cover its opening too. Not sure what engine degreaser in the bell housing would do to an engine .... other than greatly increase the risk of loock up among the springs, pushrods, and valves...

Anyways good luck and enjoy. I might have gone too far with my protecting the engine but i don't know I just wanted to be sure. Oh and finally (i know i never stop !) i kept on smelling that engine degreaser'* vapors coming from under my hood for a good month or so after degreasing it. I guess I must have missed some crevices while hosing it down, make sure you don't, it'* not fun for one, and for two , degreasers are flammible!

Good luck
-87 Bonneville (and Mike Diaz)
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Old 01-14-2004, 03:46 PM   #6
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It seems no one cleaner will do it all, try a combination rinse inbetween applications. once done chase a rag around to soak up any water, leave the hood up for a half day to air out. This will help remove the cleaner smell from hot parts later on, it dries then evaporates off when hot.
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Old 01-14-2004, 03:49 PM   #7
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Got a wire brush set (nylon, brass, steel) and that, some water/rags to dip in if needed, and maybe a spritz of bike degreaser if i needed it.
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Old 01-14-2004, 03:51 PM   #8
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Oh yeah, if you have an open element filter (K&N cone) you would deffinatlly want to cover that thing up before you started spraying any degreaser or water in there.
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Old 01-14-2004, 04:32 PM   #9
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post a pic of the dirty motor, is it really that bad??
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Old 01-14-2004, 07:28 PM   #10
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I agree I use Simple Green, spray on, let sit, then I cover coil packs on using a spray nozzle on my garden hose set on a light rinse setting...In other words I don't go sand blasting my engine with it..

And have not had any problems yet...

The WD-40 idea does sound like a great idea though...
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