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any videos of under hood in heavy rain? #4779557
06/06/18 08:06 PM
06/06/18 08:06 PM
Joined: Jan 2003
Posts: 3,117
Coastal South Carolina
edwardh1 Offline OP
edwardh1  Offline OP
Joined: Jan 2003
Posts: 3,117
Coastal South Carolina
seems auto makers would check how well under hood stuff like the alternator is shielded by the hood and underpan.


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779631
06/06/18 09:01 PM
06/06/18 09:01 PM
Joined: Mar 2017
Posts: 5,734
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 5,734
...
You could break ground here and be the first. Let us know how it works out.


Or,,,,,,,,,,,, you can just open the hood after a rainy drive and check for yourself.


2017 Mazda CX-5 GT.

Valvoline Modern Engine 0w20
Mobil 1 EP 108A
Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779636
06/06/18 09:10 PM
06/06/18 09:10 PM
Joined: Dec 2017
Posts: 412
Massachusetts
VeryNoisyPoet Offline
VeryNoisyPoet  Offline
Joined: Dec 2017
Posts: 412
Massachusetts
I'd be interested in seeing this kind of footage too. If only I had a GoPro or other rugged camera I could strap in there. There wouldn't be much water visible afterward because the heat and airflow will dry it out real quick. In the winter I do see a layer of salt and grime in the front of the engine bay from road spray getting through, but not sure how much a given amount of residue equates to how much actual water entered.


1998 V70 GLT / 194k miles [10w-30 Valvoline Syn w/ Maxlife Tech + Mann W917 filter]

"Use yah blinkah!"

"Be nice. The alternative involves an air horn and 7000 lumens of high beam."
Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779638
06/06/18 09:10 PM
06/06/18 09:10 PM
Joined: Aug 2011
Posts: 3,204
n.c.
gman2304 Offline
gman2304  Offline
Joined: Aug 2011
Posts: 3,204
n.c.
Originally Posted By: edwardh1
seems auto makers would check how well under hood stuff like the alternator is shielded by the hood and underpan.
It was common to see cars that had “drowned out” from driving through a rain storm, and would be stalled and blocking the road when I was a kid. It was due to water being splashed onto the cars electrical system under the hood, usually the old points type distributors would get water under the cap causing the engine to stop until the cap was removed and everything was dried out, usually by compressed air and shop towels. Back then you could see the ground with the hood up so yes, I’m thinking the car manufacturers learned how to protect the engines components from the weather several decades ago.

Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779643
06/06/18 09:19 PM
06/06/18 09:19 PM
Joined: Nov 2009
Posts: 4,975
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,975
Houston, Texas
I did this on my truck one time after driving through a ton of rain for about 7 miles. It was a scattered storm, so it was done raining by the time I got home. I'm not sure if it dried on the last couple miles when it stopped raining, but it was dry as a bone in there. Of course on my truck the rain has quite a few things for it to go through before hitting the engine. Radiator, transmission cooler, inter cooler, ac condenser, etc.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: any videos of under hood in heavy rain? [Re: gman2304] #4779668
06/06/18 10:05 PM
06/06/18 10:05 PM
Joined: Oct 2012
Posts: 4,767
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,767
Taiwan
Originally Posted By: gman2304
Originally Posted By: edwardh1
seems auto makers would check how well under hood stuff like the alternator is shielded by the hood and underpan.
It was common to see cars that had “drowned out” from driving through a rain storm, and would be stalled and blocking the road when I was a kid. It was due to water being splashed onto the cars electrical system under the hood, usually the old points type distributors would get water under the cap causing the engine to stop until the cap was removed and everything was dried out, usually by compressed air and shop towels. Back then you could see the ground with the hood up so yes, I’m thinking the car manufacturers learned how to protect the engines components from the weather several decades ago.


Drove through a large puddle in a thunderstorm several decades ago in a borrowed Mini Metro. Stopped dead. IIRC the distributor on FWD BMC A series engines is at the front of the car and vulnerable.

I was on a camping trip in East Anglia so I put my stove on the ground under the distributor and threw the tent flysheet over the bonnet (it was still raining heavily). Took about 20 minutes to dry out. A fuel leak could have been expensive, because it was a pretty good tent, though a fairly bad Mini Metro.

Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779740
06/06/18 11:50 PM
06/06/18 11:50 PM
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
And then there was the time I was helping a buddy haul his Ice Fishing Shack onto the lake. He had rigged the shack with a simple torsion-bar and wheels setup, so the shack was basically a low-speed trailer until you popped the wheels off on the lake.

In this particular body of water, there is a dam upstream that varies the level from time to time. So, at the end of the boat launch, there was a good 20 feet of open water before the hard ice at all the banks, and locals were saying there was five feet of depth right at the threshold of the lake ice.

This guy is a heavy equipment operator (foreman, actually) and a farmer, and lived at this lake full time.

Somewhat to my surprise he just punches it, and drives right into the open water on his '08-ish Chevy half ton, there is water coming over the hood, he stays on the throttle, and away we go, 20 seconds later, up onto the ice and off to our destination. Not a hiccup from the truck.

I'm not too proud to say that afternoon he had bigger balls than me, but it just goes to show that a lot of anxiety about such things is unnecessary.

And, from another thread here, where I said the ICEngine isn't going anywhere around here, just try that with your Tesla3.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779777
06/07/18 04:10 AM
06/07/18 04:10 AM
Joined: Sep 2008
Posts: 3,924
Southeast Texas
gfh77665 Offline
gfh77665  Offline
Joined: Sep 2008
Posts: 3,924
Southeast Texas
I have watched some YouTube videos of guys mudding or fordng a lake or river. Some make it through with water topping the hood. Some don't. I will drive in a foot or so of water in a flood, but after that, no way.

Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779788
06/07/18 05:11 AM
06/07/18 05:11 AM
Joined: Mar 2013
Posts: 824
NY
joegreen Offline
joegreen  Offline
Joined: Mar 2013
Posts: 824
NY
I've never had any issues pressure washing an engine while it's running if that means anything.

Last edited by joegreen; 06/07/18 05:12 AM.

1978 Chevrolet k20
Engine: Delo 10w30xle
Transmission: Castrol transmax dex/merc

1984 Mercedes-Benz 300 turbo diesel
Engine: Delo 400 15w40le
Re: any videos of under hood in heavy rain? [Re: Johnny2Bad] #4779808
06/07/18 06:17 AM
06/07/18 06:17 AM
Joined: Oct 2010
Posts: 1,753
PA
123Saab Offline
123Saab  Offline
Joined: Oct 2010
Posts: 1,753
PA
Originally Posted By: Johnny2Bad
ICEngine isn't going anywhere around here, just try that with your Tesla3.


Electric motors can run under water with no air.

A 4wd with a motor on each wheel would not care about water one bit


Anything can happen
The tallest towers be overturned
Those in high places be daunted
Those overlooked regarded
- Seamus Heaney
Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779835
06/07/18 06:58 AM
06/07/18 06:58 AM
Joined: Oct 2008
Posts: 19,133
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,133
Sunny Florida
Some must forget that many cars run their fuel pump immersed in the tank!


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: any videos of under hood in heavy rain? [Re: 123Saab] #4779838
06/07/18 06:59 AM
06/07/18 06:59 AM
Joined: Dec 2002
Posts: 41,159
'Stralia
Shannow Offline
Shannow  Offline
Joined: Dec 2002
Posts: 41,159
'Stralia
Originally Posted By: 123Saab
Originally Posted By: Johnny2Bad
ICEngine isn't going anywhere around here, just try that with your Tesla3.


Electric motors can run under water with no air.

A 4wd with a motor on each wheel would not care about water one bit


If properly sealed.

Re: any videos of under hood in heavy rain? [Re: edwardh1] #4779907
06/07/18 08:19 AM
06/07/18 08:19 AM
Joined: Apr 2007
Posts: 716
Connecticut, USA
bmwpowere36m3 Online content
bmwpowere36m3  Online Content
Joined: Apr 2007
Posts: 716
Connecticut, USA
I've never had issues with an alternator on a modern vehicle after driving in heavy rain, washing and/or power-washing... I would assume the design conditions would account for some water contact, but not full submersion.

Re: any videos of under hood in heavy rain? [Re: Shannow] #4779992
06/07/18 10:02 AM
06/07/18 10:02 AM
Joined: Nov 2013
Posts: 1,928
Chicago, IL
EdwardC Offline
EdwardC  Offline
Joined: Nov 2013
Posts: 1,928
Chicago, IL
Originally Posted By: Shannow
Originally Posted By: 123Saab
Originally Posted By: Johnny2Bad
ICEngine isn't going anywhere around here, just try that with your Tesla3.


Electric motors can run under water with no air.

A 4wd with a motor on each wheel would not care about water one bit


If properly sealed.


Back in the day, I remember breaking in brushed R/C car motors by dipping the entire motor in water and running it. Bearings may not last long though. Probably not as good for a large AC motor running at high voltages though.

Like others have mentioned, overland off roaders throw a snorkel on their trucks and drive though rivers, no problem.


smile

Re: any videos of under hood in heavy rain? [Re: edwardh1] #4781003
06/08/18 08:12 AM
06/08/18 08:12 AM
Joined: Sep 2013
Posts: 10,527
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,527
Indiana
Isn't there a Chuck Berry song about this?

The rain water was a blowin' all unda my hood.. I knew that was doin' my mota good...


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

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