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Hood vents and hood spacers didn't work

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Old Oct 19, 2019 | 06:27 PM
  #1  
tonybeirut's Avatar
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From: Beirut
Year: 1994 Country
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Engine: 4.0 L
Default Hood vents and hood spacers didn't work

Guys. I have hood vents and 2" hood spacers but I still can't touch the hood it's burning my hands. Underhood still hot like hell.

Coolant temp is normal engine temp is normal.

Anyone has encountered the same problem? I mean I can fry eggs on that hood even with the 2 mods I did.

Last edited by tonybeirut; Oct 19, 2019 at 06:28 PM. Reason: Mistake
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Old Oct 19, 2019 | 06:40 PM
  #2  
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Hoods get hot. That's normal
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Old Oct 19, 2019 | 06:42 PM
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Why do you want to touch the hood ? There not a lot of air flow so the air that the fan does move will be hot . If you want to cool your hood it needs insulation to keep most of the heat off it . that's why a lot of XJ's hood has paint that is cooked and the clear coat coming off .
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Old Oct 20, 2019 | 01:39 AM
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So, your in Beirut, Lebanon? Isn't it normally hot there, lots of direct sun? Anyways things to think about & to consider.
- what color is the hood? Darker colors tend to be hotter than lighter colors.
- have you considered a hood liner, to mount under the hood? www.quadratec.com/products/912035_56.htm
- the following are things that will help the engine run cooler, which should help with a cooler hood.
1). High flow water pump. I use HESCO. www.hesco.us
2). High flow thermostat housing. I use HESCO. www.hesco.us
3). At the minimum, a 2 row radiator. I installed a 3 row, which a lot of people say it's not needed. I don't know....
4). Maybe an external transmission cooler???
5). You might have some success with "Water Wetter" it helps cut down on water surface tension.
6). Maybe add an additional electric cooling fan. You might have to upgrade the alternator with the extra load, but I doubt it.

Is the exhaust manifold doing anything crazy, like getting glowing red? Is the exhaust plugged. Is the exhaust exiting at the back of the Jeep, through the tailpipe?
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Old Oct 20, 2019 | 06:35 AM
  #5  
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Year: 1994 Country
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Originally Posted by MaskedMallard
So, your in Beirut, Lebanon? Isn't it normally hot there, lots of direct sun? Anyways things to think about & to consider.
- what color is the hood? Darker colors tend to be hotter than lighter colors.
- have you considered a hood liner, to mount under the hood? www.quadratec.com/products/912035_56.htm
- the following are things that will help the engine run cooler, which should help with a cooler hood.
1). High flow water pump. I use HESCO. www.hesco.us
2). High flow thermostat housing. I use HESCO. www.hesco.us
3). At the minimum, a 2 row radiator. I installed a 3 row, which a lot of people say it's not needed. I don't know....
4). Maybe an external transmission cooler???
5). You might have some success with "Water Wetter" it helps cut down on water surface tension.
6). Maybe add an additional electric cooling fan. You might have to upgrade the alternator with the extra load, but I doubt it.

Is the exhaust manifold doing anything crazy, like getting glowing red? Is the exhaust plugged. Is the exhaust exiting at the back of the Jeep, through the tailpipe?
I already have :
Aluminum radiator 2 raws + 50/50 coolant
OEM hood liner
Trans cooler
2nd external electric fan (on separate manual switch)
Hood vents
2" hood spacers

Exhaust is working fine not red

Engine runs cool even on heavy load temp gauge never bypass the middle but it's the underhood that is going extremely hot.

Hood paint is falling off (military green color).

Many of my friends have xjs but they don't have that problem as mine.

Last edited by tonybeirut; Oct 20, 2019 at 06:51 AM.
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Old Oct 20, 2019 | 08:21 AM
  #6  
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Gloves?
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Old Oct 20, 2019 | 11:14 AM
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Line the hood with a heat barrier or line your hands with a heat barrier. If you dont have the stock under hood mat you could foil the whole thing. If it is present you could just do the small section around the hood latch.
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Old Oct 20, 2019 | 12:19 PM
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Originally Posted by cruiser54
Gloves?
Lol I'm doing that
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Old Oct 20, 2019 | 12:22 PM
  #9  
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Originally Posted by Cummins93
Line the hood with a heat barrier or line your hands with a heat barrier. If you dont have the stock under hood mat you could foil the whole thing. If it is present you could just do the small section around the hood latch.
I have to wrap everything under hood then . Arb compressor, solenoids, pcm.. They are all hot like hell
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Old Oct 20, 2019 | 03:25 PM
  #10  
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The other thing you can do is a heat wrap on the exhaust under the hood that should lower the under hood temp.
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Old Oct 20, 2019 | 03:38 PM
  #11  
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Originally Posted by tech
The other thing you can do is a heat wrap on the exhaust under the hood that should lower the under hood temp.
Mmm good idea I'll try that.
I have the oem front Skid plate mayhe it's preventing air to circulate?
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Old Oct 20, 2019 | 11:51 PM
  #12  
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How about a ceramic surface on the exhaust manifold? I run hot as well, spacers, no vents, green hood (clear is gone too), cold air cowl intake, transmission cooler and 2 row radiator, no skid plate and getting ready to put on my JET HOT ceramic coated exh. man. I might do an external oil cooler. The summers here in Phoenix are brutal on my engine compartment temps.

Website says applying this coating reduces heat by up to 56%. You have to send it to the company to get the coating but it has a lifetime warranty and doesn't corrode.
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Old Oct 21, 2019 | 12:23 AM
  #13  
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That will help but I would still do a heat wrap. I used that coating it does help .
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Old Oct 21, 2019 | 02:41 AM
  #14  
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Originally Posted by xjallseasons
How about a ceramic surface on the exhaust manifold? I run hot as well, spacers, no vents, green hood (clear is gone too), cold air cowl intake, transmission cooler and 2 row radiator, no skid plate and getting ready to put on my JET HOT ceramic coated exh. man. I might do an external oil cooler. The summers here in Phoenix are brutal on my engine compartment temps.

Website says applying this coating reduces heat by up to 56%. You have to send it to the company to get the coating but it has a lifetime warranty and doesn't corrode.
Looks good but can't do that in my country I'll try the heat isolator wrap. Half of my family lives in AZ Mesa it's really hot 🔥 there.
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