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Old 02-28-2005, 02:40 PM   #1
reedodafreedo
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Question water in engine bay-Problem?????

obviously water gets in there but some say that it is bad in vertain places and some dont.... what is the deal? I have a CAI and it is like the half way kind. i removed the covor from underneath the hood scoop (of my 98 OBS) so now rain can flow in freely. i dont think it could get to the airfilter but maybe a little. Could this be a problem? also what about water getting on the battery and all wiring going to and from the battery... all input is wanted and greatly appretiated.
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Old 02-28-2005, 03:01 PM   #2
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Generally its not a problem unless you actually submerge the engine or spray water directly into the alternator. The exposed parts of the battery wiring should have a layer of grease on them that protects them.
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Old 02-28-2005, 04:07 PM   #3
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Why did you remove the cover from your hood scoop? It sounds like a bad idea to me. I would think that allowing rain to come in will promote corrosion and lead to electrical problems. Can you think of any gas-powered machines that are intended to be used outside that don't have covers to keep rain off the engine? I can't.
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Old 02-28-2005, 04:26 PM   #4
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^ The WRX

You'll be fine
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Old 02-28-2005, 04:36 PM   #5
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i have read on here about people having issues with shorty intakes and rs hoods due to the side vents. i would imagine you could have issues by removing the scoop also. just think about it.. with the scoop the water would be channeled onto/through the intercooler and exit the bottom of the engine bay. without a scoop its going to be going all over the place and could easily get sucked into your intake or get into places you dont want it to.
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Old 02-28-2005, 05:27 PM   #6
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Quote:
Why did you remove the cover from your hood scoop? It sounds like a bad idea to me. I would think that allowing rain to come in will promote corrosion and lead to electrical problems. Can you think of any gas-powered machines that are intended to be used outside that don't have covers to keep rain off the engine? I can't.
so about the gaping 2ft by 2ft (at least) hole in the bottom of the engine bay? how about the wrx and the sti? they also have scoops without covers, and the holes in the bottom of the engine bay...(yes i know they have intercoolers but still, it is a gaping hole in the hood).
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Old 02-28-2005, 09:33 PM   #7
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Quote:
Originally Posted by static_rst
so about the gaping 2ft by 2ft (at least) hole in the bottom of the engine bay?
What does that mean? Are you saying that having a hole in the top of the engine compartment is OK because the motor is going to get wet from below anyway? If that is what you are saying, then my response is that maybe you are right. I don't know. My sense is that indirect spray from below is different than a direct spray through the top of the engine compartment, but I really couldn't say.

My question was why he removed the cover from his hood scoop. Is there some advantage to doing that?

Quote:
how about the wrx and the sti? they also have scoops without covers, and the holes in the bottom of the engine bay...(yes i know they have intercoolers but still, it is a gaping hole in the hood).
I have never studied the construction of the intercoolers on those cars. Do they direct the water passing through the engine compartment?
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Old 03-01-2005, 01:31 AM   #8
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i removed it so that A) i will have flowing air into my engine bay so that it cools things down a little bit and B) you can see my CAI and it is hot!
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Old 03-01-2005, 01:57 AM   #9
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a direct spray of water will cause your car to burst into a firey heap of molten metal, soon after your engine will make like independence day and shoot roman candle like ordnances everywhere, after the 50ft high afterburner type flame settles you can set hot dogs over it, leave for 5 to 6 minutes, or until brown
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Old 03-01-2005, 02:09 AM   #10
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o thanks, i get it now
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Old 03-01-2005, 09:12 AM   #11
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Quote:
Originally Posted by hpracingwrx
a direct spray of water will cause your car to burst into a firey heap of molten metal, soon after your engine will make like independence day and shoot roman candle like ordnances everywhere, after the 50ft high afterburner type flame settles you can set hot dogs over it, leave for 5 to 6 minutes, or until brown
Its true, happened to a friend of a friend of mine.

a little water on your engine doesnt hurt at all. Imagine all the water, dirt, salt, and various other things that come through your grill, bumper, and any other orifice in your car. Unless you drive under a waterfall, youd be fine.
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Old 03-01-2005, 09:23 AM   #12
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Quote:
Originally Posted by hpracingwrx
a direct spray of water will cause your car to burst into a firey heap of molten metal, soon after your engine will make like independence day and shoot roman candle like ordnances everywhere, after the 50ft high afterburner type flame settles you can set hot dogs over it, leave for 5 to 6 minutes, or until brown
I hate it when that happens.

But seriously, folks, if it is OK to spray water on top of an engine, why do equipment manufacturers go to so much trouble to make weathershields? Look at portable welders, air compressors, etc. Do any of them have the motors exposed to the rain? I am not taking a position one way or the other, but I wouldn't want it to rain on my motor.
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Old 03-02-2005, 02:53 PM   #13
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well i have my scoop covor off and so i will expiriment and if it screws up my engine ill just have to go with a WRX engine swap... oh darn
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Old 03-02-2005, 09:27 PM   #14
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it shouldn't be a problem...when i had the cone filter on the trottle body, it got all soak due to a heavy rain we had....car ran fine....usually if drops of rain get into the trottle body or engine it'll burn off before anything crazy happpens....my cover on the hood scoop isnt there and water gets in like crazy (when it rains) nothing seems to be wrong...maybe in the future i'll see rust....took out the covers on both side vents nothing except water around the abs pump and battery, no rust yet....
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Old 03-03-2005, 03:19 AM   #15
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if u clean your engine bay very well, then drive around in the rain, then look under your hood, u will notice that water gets everywhere even with the cover, it comes in through the gap between the hood and the grill, it comes from the back of the hood (windshield defrost area) it comes from underneath, water will get everywhere no matter what.
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Old 03-03-2005, 09:26 AM   #16
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Quote:
Originally Posted by hpracingwrx
if u clean your engine bay very well, then drive around in the rain, then look under your hood, u will notice that water gets everywhere even with the cover, it comes in through the gap between the hood and the grill, it comes from the back of the hood (windshield defrost area) it comes from underneath, water will get everywhere no matter what.
Therefore it is OK to have a steady stream of water pouring in through the top of the engine compartment? Never having designed a car, I don't know the answer to that question, but I do think that you are comparing apples to oranges. It may be that having a hole in your hood is no problem. I don't know. What I would like to know is whether there is any manufacturer of cars, trucks, equipment, or anything else powered with a gasoline engine that does not put a weather cover over the engine. I can't think of any. Can anybody else?

Last edited by dsc; 03-03-2005 at 09:40 AM.
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Old 03-03-2005, 10:11 AM   #17
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Quote:
Originally Posted by dsc
Therefore it is OK to have a steady stream of water pouring in through the top of the engine compartment? Never having designed a car, I don't know the answer to that question, but I do think that you are comparing apples to oranges. It may be that having a hole in your hood is no problem. I don't know. What I would like to know is whether there is any manufacturer of cars, trucks, equipment, or anything else powered with a gasoline engine that does not put a weather cover over the engine. I can't think of any. Can anybody else?
EVERY electrical connector in the engine bay has a water-tight o-ring built in. the engine can't rust, it aluminum. you can take a hose to the engine bay, and everything will be fine. as a matter of fact, that's how dealerships "detail" the engine bays of the cars they sell. they spray a VERY powerful acid-based cleaner onto the entire engine bay, let it sit for a few seconds, and hose the whole thing off. you can do the same with simple green, of "gunk" or any of those cleaners.
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Old 03-03-2005, 10:31 AM   #18
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Quote:
Originally Posted by Boost-Free Subee
EVERY electrical connector in the engine bay has a water-tight o-ring built in. the engine can't rust, it aluminum. you can take a hose to the engine bay, and everything will be fine. as a matter of fact, that's how dealerships "detail" the engine bays of the cars they sell. they spray a VERY powerful acid-based cleaner onto the entire engine bay, let it sit for a few seconds, and hose the whole thing off. you can do the same with simple green, of "gunk" or any of those cleaners.
As I recall, the manufacturers of those cleaners also suggest protecting electrical components and running the engine after cleaning in order to dry things out. It has been decades since I used one of those engine cleaners, so I stand to be corrected on that.

Are you guys saying that manufacturers of cars, trucks, equipment, etc., are wasting their customers' money by putting weather covers on their engines?
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Old 03-03-2005, 05:56 PM   #19
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Damnit

It will be OK
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Old 03-03-2005, 06:16 PM   #20
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lol, there are so many threads about this damn hood scoop and water getting into them. some are being sarcastic too
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Old 03-03-2005, 10:06 PM   #21
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Originally Posted by STiFanboy
lol, there are so many threads about this damn hood scoop and water getting into them. some are being sarcastic too
What does that mean?
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Old 03-03-2005, 10:08 PM   #22
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For those who favor having a hole in their hood, can I get a direct answer to my question about why manufacturers put weather covers on their engines?
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Old 03-03-2005, 11:20 PM   #23
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dsc... do some research and then name one person who has taken off the weather covor and now has problems. i have not heard of any horror stories, i could be wrong and probably am but i just havent seen them.
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Old 03-03-2005, 11:39 PM   #24
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Quote:
Originally Posted by reedodafreedo
...do some research and then name one person who has taken off the weather covor and now has problems...
My guess is that any harm that would come from having rain come in on top of your motor would take a long time to show itself. Even then, there would be no way of knowing what caused the problem.

Maybe it's OK to have a hole in our hood. If so, why haven't any of the manufacturers of vehicles and outdoor power equipment taken the opportunity to cut costs by deleting their weather covers? Am I wrong about that? Can anyone think of any vehicles or equipment that do not have weather covers? Even lawn mower engines are designed to shed the rain.

By the way, please feel free to ignore me. I generally will continue beating on an issue long after others have lost interest. It's just that I would hope that someone could come up with some reason why it is OK to have a hole in a Subaru hood when it is apparently not OK to have holes in the weather covers of other motorized things. Is Subaru the only company that has figured out how to put o-rings on their electrical terminals?
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Old 03-04-2005, 12:54 AM   #25
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o so you couldnt find anybody that has had problems... and it would take a long time correct me if i am wrong but my 98 OBS has a hood scoop and so they have had scoops for over 6 years and i am sure taht there were a few that took off the weather covor and there has not been anybody complaining about it... i would say that is a long time (6 years)
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