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Old 01-18-2009, 08:15 PM   #1
ceecel
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Default Washing under the hood??

04 sti and even tho i dont have a 50,000 dollar motor and turbo I like to keep the under hood spotless. I noticed alot more building up that I cant reach with a cloth (Around the alternator, intake, top part of the motor). Should I wash under the hood at a reasonable distance with a pressure washer? Should I not get certain parts wet? Any tips/tricks on keepin everything spotless would be appreciated!
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Old 01-18-2009, 08:19 PM   #2
ARBoost
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Good question i would like to know too.
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Old 01-18-2009, 08:31 PM   #3
ADAS1223
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+1 Me too
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Old 01-18-2009, 08:38 PM   #4
ashergrey
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Common sense says cover the battery, alternator and MAF.

I usually mist the engine bay with degreaser then lightly hose it down. After that, start up the engine and let it run until hot to evaporate off the leftover. Then let the engine cool a bit and hit the plastic/rubber with your favorite dressing.
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Old 01-18-2009, 08:42 PM   #5
ceecel
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as for the ignition coils and stuff should those also be covered? I do remember washing my b18 honda then I had to do plug wires to get it back to normal!
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Old 01-18-2009, 08:48 PM   #6
Magic Marker
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When I used to do my Civic, I only covered the plugs and dizzy w/ aluminum foil. Sprayed down with some foam degreaser, lightly agitated the dirtier parts and lightly misted down with water. Wiped it all down and did some light armor all on the black plastic. Started it up to finalize the dry and "bake" in the armor all. Always came out great.
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Old 01-18-2009, 09:01 PM   #7
hoffmanEstates
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i just blast the motor. at home/work
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Old 01-18-2009, 09:07 PM   #8
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I use simple green or Mr Clean oven cleaner in a mild solution. Then I use a pressure washer on a "fan" setting and I make sure not to blast the crap out of anything. I then use a leaf blower to get most of the water off and then a slight mist of spray lube.

I dont worry about the water as I am sure that I dont blast anything as hard as driving in the rain at speed will produce. In the rain, it will ALL get wet anyway.
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Old 01-18-2009, 09:17 PM   #9
blackcompany
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there is a guy with a engine bay cleaning thread looks really sharp. another p121 success story i think is the name. numbers might be wrong on that product name.
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Old 01-18-2009, 09:49 PM   #10
ceecel
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wow that is some crazy stuff...he made those engine bays look like new!!! Ive got something to do the next warm day we get I suppose!!
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Old 01-18-2009, 09:57 PM   #11
2.5GTLegacy
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Let the car cool down for awhile, cover all the electrical components in trash bags..that would be your alternator, battery, ignition coil, and any open connectors. What I use is the stuff from Advance Auto, I believe it's called the Engine degreaser. Just spray all around, let it sit and then hose everything off. Some scrubbing here and there if needed and let it dry. After wards, apply some engine dressing (I use Back to Black from Mothers i believe?) to all my plastic bits and pieces.
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Old 01-18-2009, 10:00 PM   #12
blackcompany
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you should post some pics in july when it finally warms up in canada. in the meantime you can fly down here and clean my engine bays.
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Old 01-18-2009, 10:05 PM   #13
ceecel
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hahaha yeah we still have a few cold months yet but I get lots of practice on the snowy backroads of northen ontario lol. Gotta look at the positives!
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Old 01-18-2009, 10:12 PM   #14
mxpop
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Be aware of "engine degreasers". They are often extremely powerful and can be too harsh for many uses.

Dont bring too much power to your cleaning effort if all you are dealing with is a little basic road grime etc. Those HD cleaners are best for neglected engines that are really a mess. My hope is that none of our Subies ever get to that extent.
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Old 01-18-2009, 10:18 PM   #15
ceecel
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my engine bay DEFINATLY is better than most lol. Everytime in the summer when I wash the car i do door jams...trunk lid area and of course under the hood. Just hard to get ur fingers in some areas. They just pour the salt on the roads here too and ive only had one chance to clean under since winter has begun so it is gettin a little shabby lol.
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Old 01-18-2009, 10:47 PM   #16
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cover the intake filter real good. spray it down with some degreaser of your choice and then hose it off. no need to cover the alternator or battery. This is how my friends and i do it and everything works out fine.

keep it simple
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Old 01-18-2009, 10:51 PM   #17
ceecel
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man...the damn pic faq hilariously enuf isnt showing any pics...i have no clue how to add them
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Old 01-18-2009, 11:14 PM   #18
pnutbutta
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Quote:
Originally Posted by ceecel View Post
04 sti and even tho i dont have a 50,000 dollar motor and turbo I like to keep the under hood spotless. I noticed alot more building up that I cant reach with a cloth (Around the alternator, intake, top part of the motor). Should I wash under the hood at a reasonable distance with a pressure washer? Should I not get certain parts wet? Any tips/tricks on keepin everything spotless would be appreciated!
I am a detailer now for a couple years, and with the engine cold, turn it on, mist your cleaner/degreaser over the engine, stay away from alternator the best you can, then blow the pressure washer in fast fanning motions over the engine until all the chemical is rinsed off. keep the gun approx 2+ feet away, and then after, take a blow gun and blow the water off. then shut the hood, let it run to evaporate some water and you should be good to go! I've "shampooed" many engines, never bag off anything, just dont put the nozzle too close, nor right at the alternator. Most importantly, if you have an air compressor and you do blow the water out, make sure theres no pooling near electirical or spark related items.
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Old 01-18-2009, 11:38 PM   #19
ceecel
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Well here is a pic to show im a little serious on the clean motor bays lol

2004 sti



And just a pic of my old civic with the b18 swap



Usually just try to wipe em down on a regular basis. BTW I know how to work on honda's but subies r a different story for me lol
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Old 01-19-2009, 05:34 PM   #20
Spec_C
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Quote:
Originally Posted by ceecel View Post
Well here is a pic to show im a little serious on the clean motor bays lol

2004 sti



And just a pic of my old civic with the b18 swap



Usually just try to wipe em down on a regular basis. BTW I know how to work on honda's but subies r a different story for me lol
Damn man.....looks good
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Old 01-21-2009, 01:48 PM   #21
resurectedvikin
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very nice! a clean engine bay is a happy one! i usually cover as much electrical as possible, and the air filter, then after i wash it i take my compressed air hose and blow out the electrical connectors and alternator and stuff, then start it and let it evap.
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Old 01-21-2009, 03:28 PM   #22
ctrent86
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Quote:
Originally Posted by mxpop View Post
Be aware of "engine degreasers". They are often extremely powerful and can be too harsh for many uses.

Dont bring too much power to your cleaning effort if all you are dealing with is a little basic road grime etc. Those HD cleaners are best for neglected engines that are really a mess. My hope is that none of our Subies ever get to that extent.
I cannot echo this information enough. Powerful degreaser's and cleaners can have acidic properties. These can lead to part erosion and the destruction over time of hoses, covers, plastics, etc.

I am the one with the Another P21S success story thread. P21S TAW is specifically formulated for auto applications.

Now to the things to cover. I typically cover main fuse/rely boxes, disconnect terminals, alternator, intake/MAF, and make sure all caps are secured down. I use aluminum foil for covering because it is plyable and doesn't retain water. I use a normal garden hose because the difference is pressure concerns me with other methods.

I do not claim to be an expert so if any other chime in that is fine and welcomed. I am just sharing what works for me.
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Old 01-21-2009, 04:03 PM   #23
Kean
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....I've never had an issue with not covering components. Most items that need to be water resistant are already protected to some extent by design. However, I have never knocked anyone for taking extra precaution by covering potentially sensitive areas.

In my case I use a hose and the "shower" setting on the nozzle that I have. I also run the water through the same inline soft/sediment filters I use for washing the exterior (helps with spots). I like P21s products but they are pricey and not a really great value in my opinion. ....if I were detailing for a living or could get it in bulk for less, I would certainly use it more often. Currently I'm using Meguiars APC+ (I bought bulk sizes of the APC & APC+ to try out). I soak down the engine and use an assortment of brushes to agitate (boars hair, EZ Detail, misc soft nylon). After rinsing, I use a leaf blower and/or compressed air to help move the water and dry the rest with MF towels. I dress the plastics & rubber usually with 303 (and wipe dry):


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Old 01-21-2009, 04:30 PM   #24
ctrent86
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APC+ is good stuff as well.

As P21S being too expensive I have gotten 5 complete engine details out of my last 1500ml bottle. That is probably at least half of the engine details someone is going to perform on a car through out its life and for 17.95 that isnt bad. Other climates might demand a greater frequency of cleaning, but for my applications it is fine.
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Old 01-21-2009, 04:35 PM   #25
ceecel
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wow for a bugeye (02-03) that is a super clean engine bay!! Very nice...thx for the tips...looks like they work very well!!
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