Should my hood be hot to the touch?

[BIGYELLOW78J10]

I know it's summer I know a 360 is a pretty big engine, but Should my hood be hot to the touch. It is really hot and the engine stays really hot for a long time. All I have to compare it to is my Toyota V-6 which is not cool, but the hood doesn't burn me after 20 minutes of driving.
I recently had quite a fiasco with my gauges and currently my temp gauge is the only working gauge, so i question its truthfulness, as it has been reading dead center. I also recently replaced the thermostat, but I don't know the proportion of water to coolant I am currently running if that makes a difference. Thanks,


Daniel

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78 J-10 Rumblin Wreck (http://www.prism.gatech.edu/~gte644i/TRUCK.jpg)
2v 360 V-8
Stock down to the rust
Highway speed in about an Hour

[Snakeyes_Tx]

I run the towing package 3-core radiator, with a 19 inch flex fan, and a 160 degree thermostat. I have no hood insulation. I have flake in the dark colored paint. It is hot as hades on there! I think that's just the way it is http://www.ifsja.org/ubb/smile.gif My gauges work, it registers on the average of only 130-140 degrees, up to about 160 when wheeling! http://www.ifsja.org/ubb/biggrin.gif

Consider the fan! IT makes a world of difference http://www.ifsja.org/ubb/smile.gif


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http://images.honesty.com/imagedata/h/284/24/32842485.jpg

Snakeyes_Tx
86 J-20 "The Rusty Dinosaur"
360/727/208/44HD/60 <- 2nd of all of them.
"If you don't know what the numbers mean, you don't need to be here!"

[WillyPete]

my hood is hot enough to burn blisters onto your skin for about 25-30 minutes after driving. i'm running the cooling/towing package with a stock fan and stock radiator, my temperature never goes out of the blue band on the gauge (140-170?) run a 50/50 mixture of water/coolant, that'll give you the best cooling properties.

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"Sugar Magnolia" '86 Grand Wagoneer 235/75R15 Wrangler AT/Rs, np229 x-case, bone stock otherwise

[BIGYELLOW78J10]

Thanks, Guys

It always feels better when other folks know what you are talking about.

Daniel

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78 J-10 Rumblin Wreck (http://www.prism.gatech.edu/~gte644i/TRUCK.jpg)
2v 360 V-8
Stock down to the rust
Highway speed in about an Hour

[stuart]

I noticed the same thing earlier this year and was kinda concerned. If it was that hot in February in Texas I could imagine what it'd be like in August! Since then I have noticed that the heat seems to build up after I've parked, almost like the hood and top of the grille are acting like a heat sink. While stopped at a light etc it isn't so hot. Just seems to be a cooling down thing, like a dog panting to cool off after a long run!

[SpruceMoose]

yeah, thats known as heat soaking. when you shut down the engine, although it stops making heat, all that cast iron/steel/aluminum/liquids still give off their heat. and now the fan is not going either. so the heat just radiates into the engine compartment. thats also how most vapor lock problems show up (been there, had that). the fuel in the hoses, lines, filters, carb, etc boils off into vapor (fuel steam?). the fuel pump that comes with the engine isn't designed to pump vapor, just liquid. so no fuel to carb. thats why an electric pump at the tank works so well. it just forces cold, liquid fuel into the system, displacing all the vapor back to the tank.
mine gets hot as h@ll after i shut it off, but i don't have the under-hood blanket anymore.

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88 Grand Wagoneer
"Spruce Moose"
http://www.FSJtheMoose.homestead.com/files/small_jeep_in_woods_1_cropped.gif

See the Moose at: http://www.FSJtheMoose.homestead.com/pics.html

AMC 360, DANA 44 F/R 2.72, TF 727, NP 229
Jacobs Pro-Street Ignition, Edelbrock 4bbl Intake with Holley 2bbl Analog Pro-Jection
Flowmaster 2.5" 50 Series Delta muffler and tubing
Amzoil foam air filter, Amzoil fluids all around
30x9.5 BFG AT
HF,VHF,UHF ham rigs and too many antennas (not)
8-Ball shift knob from college (1975)
Hella aux. driving lights

Next: 3" Rough Country 4-spring lift, Killer32 Bumpers and nerfs, 31 or 32" A/Ts

Mileage? We don't need no stinkin' mileage!

[YaZahX]

Yes, I remember when I was 7 running out when it was snowing and I burned my hand on the other jeeps hood.... But does insulation help? Because I just bought that junk from jeep and I was wondering as I was putting it in..What does it do?

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John Z.
My 82 Larado (http://www.virtue.nu/yazahx/jeep1.htm)
YaZahX@aol.com
"Yes that is a Real Jeep, yes the Jeep is older than me."
1982 Cherokee Larado
Edelbrock cam
Edelbrock intake manifold
Holley Projection
31” BFGoodrich

[ColeTrickle]

Hmm. How interesting. I would like to ask if anyone knows exactly what models came with hood insulation. Maybe all? My J10 had some bondo work done to the hood due to hell damage. The cracks in the bondo, due to heat were so bad that it would take more effort and time in salvaging than I would have liked. I recently purchased a hood from an '81 and was wondering should I go ahead and install the installation just to be safe? Like Snakeyes_TX said there was some flaking on dark colored paint. Mine's black.
Lemme know, I'd appreciate it.

[Mikel2]

Mine only gets a little warm, probably because of the 4in body lift... When it's REALLY cold, it's amazing how fast an engine will cool down...
Mikel

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1978 Jeep Cherokee Chief
360 4bbl/T18A/Dana 20
http://www.virtue.nu/yazahx/rand/pollitopequeno.jpg

[stuart]

So anybody running with an auxilliary [thermostatically controlled] radiator fan? If so what brand and what are your results?

[Dan Grdovic]

I have some stock hood insulation, some caught fire due to frequent backfiring, some got wet.

[Stuka]

My Cherokee has all its heat insulation, and the hood hardly gets warm. I have drivenn with snow on it, and the snow wont really melt. If i get around to it I will take a picture of it if you guys wanna see what it looks like originally.

[Dave _S]

My '77 Chero doesn't get particularly hot either. The hood gets a bit warm, but not much.

[Chiefly77]

I have insulation and I would say it definately helps. Your jeep is always going to have a warm hood but just think about the hand warming capabilities in the winter. http://www.ifsja.org/ubb/smile.gif

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Charlie Nimitz
'77 Cherokee Chief W/T
360/TH-400,
QT w/low range
31" x 10.50" General Grabbers

My FSJ page (http://www.angelfire.com/nc2/chesterspage)

[bignblue]

AMCs are famous for running a bit warm. Chalk it up to the block's nickel content, or whatever. I know in the Deep South (must always be capitalized) I raise the hood after lots of driving, or I get vapor lock issues. I'm thinking about rigging a pusher/puller fan config on the Wag...might help the a/c a little.

I LOVE HAVING A/C!!!!

[rawdave]

mine gets hot too... has anyone considered using the foam type insulation that you put on the outside of the house before you put on the siding?

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87 Grand Wagoneer
TFI Upgrade
Thorley Headers
Working on GM Multi-Port EFI

[Chiefly77]

just a suggestion to those with vapor lock problems, the PO of my jeep put a round foam type of hose insulation around the fuel lines in the engine compartment. It works great I can slip it off when the engine is hot and the lines are not even warm. I would definately try this trick if you haven't already.

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Charlie Nimitz
'77 Cherokee Chief W/T
360/TH-400,
QT w/low range
31" x 10.50" General Grabbers

My FSJ page (http://www.angelfire.com/nc2/chesterspage)