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Snow plow blocks air to radiator at highway speeds

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Paul J. Decker

02-06-2001 03:13:06




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It had occured to me years ago that this could happen but I've never seen any discussion about nor any products to defeat it. What is the deal? I tried angling the plow but no change. Apparently, the plow creates a void of air in front of the grille/radiator that even the fan can't pull enough air thru. I noticed the coolant temperature go up and the thermostatic fan started roaring as it does when the temperature rises. I did try lowering the plow a little on the way home but because of the snow, speeds were limited and I'm not sure which was responsible for the improvement. Around town (less than 40 MPH), there is no problem.

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the tractor vet

02-10-2001 20:07:49




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  
When thinking about buying a truck to plow sno with one should spec. a TRUCK with that in mind ,so many time i have seen guys put plows on trucks that are not suited for the job,just because you have a 4x4 does not mean that it is heavey enough. I plowed snow for 18 years through some of the worest winters was even on stand buy for the state and was called out on several occasions to plow state highways when the state plow boy did not think they could get through i would open the road with a 3/4 ford with a 7.foot six western plow . I would always spec my truck with the biggest rad. that i could get the super cool pkg. heavey ft.axel, posi rear ( preferd the detroi locker in the rear ,4.10 gear ratio) . The first two had C6 auto.thans. then built them up my self with extra clutches heavey duty cooler then they would last for a few years, high out put heaters big alt. two batterys over sized tires with highest ply rating had tire chains for both ends of the truck if needed. At times back in 74 and75 ,77 and 78 there were times that the rad. got plug full of snow while plowing out drifts that i should not have tackeled but got through them never ever got them hot even when i moved in warm weather about 15 miles it never got hot. because of the super cool pkg.

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M.R.

02-08-2001 09:01:33




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  
In some cases after everything else is checked out and or flushed, etc.. There is a product called "Wetter Water" or "Water Wetter" it's available at some of the auto parts stores.

This product is also used by the Fire Departments in fire fighting.



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RayP

02-08-2001 07:41:57




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  
Never had a problem with it! Could it be that my old 6.2L diesel has a large enough radiator that it is not a problem? Have used the plow with and without a lip over the front, and the lip is better - helps the snow to roll instead of piling up in front of the plow. My present one is a piece of heavy industrial belting, bought from an industrial supply company. Suggestion to all those who are looking to buy a plow, the more curve, the better to roll the snow. Mine's an old Meyer and is rather flat. Price was right, and I get by! Maybe a larger radiator is a possible solution.

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Jim K

02-06-2001 13:41:11




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  
Paul I have have the same problem with my 88 F350
no matter where I angle or at what height the thing will overheat (new radiator and thermostat)
so that isn't an isue. I am going to try to find one of those foils that mounts on top of plow
or a strip of thick rubber like conveyor belting or snowmobile track cut in half lengthwise.
I'm hoping that will change the way the air travels over the plow. I even have an electric fan
to help push air through the radiator that I'm going to mount up. Any other sugestions welcome.
Jim K

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F14

02-06-2001 14:35:42




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 Re: Re: Snow plow blocks air to radiator at highway speeds in reply to Jim K, 02-06-2001 13:41:11  
My plow has a foil on it. Between the natural curvature of the plow and the addition of the foil, the plow is very nearly "C" shaped. Didn't make a bit of difference on the overheating thing. Helps a lot on visibility tho, snow doesn't blow back over the hood as bad.



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tom

02-06-2001 08:20:23




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  

I have run across the same problem in the past. Installing a fan with more blades will help, and a fan shroud is a must.



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F14

02-06-2001 06:05:10




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 Re: Snow plow blocks air to radiator at highway speeds in reply to Paul J. Decker, 02-06-2001 03:13:06  
Having just plowed myself out of a little over a foot of wet, heavy snow, I know where you're coming from ":^)

Angling the plow and carrying it as low as you can is about all you can do. Traveling at highway speeds with the plow on is going to cause the truck to run hot. It's also not the greatest thing for the front end.

I'm fortunate enough to have two trucks, so I can leave the plow on most of the time, but if I need to take the big truck very far, I take the plow off first.

If anyone else has a better solution, I'd love to hear it.

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