double_ot_xj

I missed how you affixed the Aluminum grill guards to your steel hood, but I did want to let you know to look out for Galvanac corrosion. http://en.wikipedia.org/wiki/Galvanic_corrosion.

94xjstud

you mounted these backwards. the vents need to face back so the air flowing over the hood will pull the hot air out.

Rysam

go look at your floor vent, the chingaderos go both ways. in this example flipping it would do exactly nothing.

hood81

Rysam is right,half the vents face one way the other face the other way make no diff how there faced. can say the rain and snow has made no diff. in the way it performs i keep them open all year around,i can say it droped engine temp about 15 degrees

Gravy

interesting.

ZachsXJ

thats what a zinc sacraficial anode is for. you pretty much bolt a block of zinc to the frame somewhere and it'll corrode instead of the steel of the Jeep. when the Zinc corrodes down to needing replacing you just bolt on another block. It'd save any vehicle from rusting out as quickly as they do.

double_ot_xj

^ I understand what you mean but you don't have to put zink blocks in there. The aluminum will corrode before the Steel as a sacrifice.


Text book Quote (ISBN 0-13-243037-1)pp8:
"Galvanic corrosion, also called sacraficial corrosion, occours when two dissimilar metals come in contact in the presence of an electrolite. An electrolite is a non-metallic conductor of electricity. For example, if a bare aluminum panel comes in contact with a bare steel fastener, the aluminum will corrode to protect the steel fastener. Coated fasteners, washers, or gasketscan be placed in between the dissimilar metals to prevent Galvanic corrosion."

ZachsXJ

Thats what the zinc is for, it'll save everything else including the aluminum. Cept the fiberglass, there's nothing you can do about that, its gonna corrode no matter what you do.

depending on the price of a zinc block all my vehicles may be getting sacrificial anodes very soon. I say that for even $50 thats worth the savings of not having to fix rusting spring perches like I have and/or various other things. >.<
I'm waiting for a leaf spring to punch a hole through the floor where the unibody is rusting above both the front perches. Need to cut them *****es out and weld in a nice fat 3/16ths steel plate that runs across the whole floor.

dham99

Ive been following this thread for a while, and I just got all the materials.
Im going to try installing it tomorrow if I dont have anything else planned, should look pretty sweet!

Just hope mine turns out as nice as yours..seeing as how I'm a perfectionist, shouldnt be too bad!

Im using your measurment guide because I like the setup. Ill be using a primer/finish flat black for the mesh, and it'll be on a white hood instead of black, so my cutting and finishwork has to be a bit more precise, defects will show on mine!

Ill post when it's finished!

aircruiser

im thinking about doing this too! looks awesome! on the trail, my temp likes to climb up around 220..even hit 240 once

JeepCherokeeTV

Those look nice! If I didn't think I was going to mess up my hood (because i'm more of a mechanic and less of a painter/body repair man) I'd do it. Maybe I should go take a hood of a rear end damage XJ at the salvage yard? I was thinking of going for a cowl induction look.

dham99

youd be fine if youre at all mechanic-minded. Its measure, cut, glue, admire. thats about it, just take ur time :P

ZachsXJ

not trying to poop on any parties, but I picked up a set of vents that I think will look SWEET on an XJ from West Marine today. $17 and some change out the door for two.

aircruiser

pics? never heard of west marine

dham99

yeah, but part of the fun of these rigs is the customization.
I saw some of the ones at west marine, not bad.
But for the same cost you can make your own, and its all about the 'fabrication' and not just ease of install. Im looking forward to making my own when i wake up today (its sunday now!). Time for bed