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Old 09-18-2008, 06:06 PM   #1 (permalink)
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will driving with a hood scoop in the rain have any ill effects on the engine long term?? i.e. water getting on the spark plugs or getting into the carburetor, etc.
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Old 09-18-2008, 06:22 PM   #2 (permalink)
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I think it would depend on what type of scoop and how much water. Remember....water is for cooling and should remain in the water jackets! lol

Water also corrodes and dose not compress!
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Old 09-18-2008, 08:17 PM   #3 (permalink)
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I used to have a '76 trans am with the reversed shaker hood scoop that was open. It used to suck rain in at free way speeds or when under hard throttle. I never had any issues other than needing to replace air filters sooner due to it getting dirty faster. I don't recall ever having a soaking wet filter. Even if so, I don't think it would be enough to cause any internal damage. If anything it probably helped the occasional detonation due to the water injection effect.
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Old 09-18-2008, 08:36 PM   #4 (permalink)
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I'm running a shaker hood scoop that has it's flapper open at all times, so air is coming in straight into the carburator from the air filter element...so no rainy rides for me, i wouldn't drive it in the rain period..if back in '69 they had those shaker hoods available, i guess you could drive them in the rain, water is suppose to come down the drain from the shaker seal, never happened to me, so i don't know if it really works at highway speeds..
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Old 09-18-2008, 08:39 PM   #5 (permalink)
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Quote:
Originally Posted by hivewax
will driving with a hood scoop in the rain have any ill effects on the engine long term?? i.e. water getting on the spark plugs or getting into the carburetor, etc.
It won't be a problem at all............................................... ...........Just stop, turn around and go in reverse till the rain stops.
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Old 09-18-2008, 08:44 PM   #6 (permalink)
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It's gonna take a lot more than rain to hurt or hydraulic your motor. A little steam cleaning will actual help clean up your carbon deposits. I wouldn't sweat it at all.
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Old 09-18-2008, 08:50 PM   #7 (permalink)
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Just don't hose it straight into the scoop and carburator when washing it...you should be ok..
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Old 09-18-2008, 09:01 PM   #8 (permalink)
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I would get a K&N filter or similar "washable" type filters. I don't think I would trust a paper element one near water.
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Old 09-18-2008, 09:42 PM   #9 (permalink)
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I once had a '70 Sportsroof with a large fiberglass Mopar 6-pack scoop installed by a prior owner. I drove it every day, rain or shine. No problems with the Cal custom air cleaner or the engine.
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Old 09-18-2008, 10:05 PM   #10 (permalink)
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As others have said the amount of rain may have an impact but unlikely. I'm guessing yyou have a usual paper filter with the housing top screwed over it so rain needs to flow down and through the filter to get anywhere near the internals.

That being said...just how dirty do you want your engine? water entering the engine bay from above will make for some nasty cleaning later.
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Old 09-18-2008, 10:17 PM   #11 (permalink)
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+1 I was caught out in the rain several times in one of the 427 cobra replicas I used to have and it had no ill effects except a mess in the engine bay I had to clean up afterward.
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Old 09-18-2008, 10:31 PM   #12 (permalink)
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The 67 Shelby-style scoop is great for getting your distributor wet in the rain. Got me blocking the left lane during rush hour traffic. Another time I got caught in a small downpour and the car stuttered a bit but I was able to pass the rain cloud and go on my way. No more rain driving for me until I fix that.
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Old 09-18-2008, 10:55 PM   #13 (permalink)
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Just make sure your dizzy cap is on tight and even better if you wrap it up with a late model boot.
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Old 09-18-2008, 11:44 PM   #14 (permalink)
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I was caught in the rain real bad this summer in my '65 fastback - shelby hood, open element air cleaner. I never seen rain like this, just sheets, and I was on the highway - 30 minutes from home. Wipers couldn't do much of anything, and large puddles, trucks and underpasses completely enveloped me in water.

I was praying I wouldn't stall or hydroplane, but the stang kept going. I eventually got home, openned the hood and was shocked that the engine compartment was relatively dry!!

Unless you are following some other vehicle closely spraying water directly into your grill, you will probably be OK. I also have an aftermarket ignition system and distributor. I guess I was lucky.
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Old 09-19-2008, 12:53 AM   #15 (permalink)
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Quote:
Originally Posted by dodgestang
Just make sure your dizzy cap is on tight and even better if you wrap it up with a late model boot.
Yeah I'll eventually get one of those boots the next time I hit the boneyards. I just haven't been to one in years. The last time it started to drizzle and I was driving the Mustang I wrapped the distributor with a plastic grocery bag held on with duct tape. Didn't rain hard enough for me to test its effectiveness, which is fine with me.

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