Aftermarket hood rattle

A

asymptonic

NAXJA Member

NAXJA Member

Location

Austin, Texas

• Feb 22, 2017

• #1

I had my hood replaced after some hail damage. The hood they installed seems cheaper. Thinner metal, underside seems to be glued on with some sort of black foam like material.

Main problem is it rattles on bumps. I think some part of the underside hood framing is rattling against the top. Does anyone know what that black foam is so I can add more, or recommend some other material to line the gaps between the hood frame and top?

 

V

Vernicious

NAXJA Forum User

Location

Layton, Utah

• Feb 22, 2017

• #2

I would think a good 2 part epoxy would solve the issue. Just make sure it's cured before you run the motor.

 

A

asymptonic

NAXJA Member

NAXJA Member

Location

Austin, Texas

• Feb 22, 2017

• #3

Not sure about that, there's a gap of an 1/8th of an inch or so. To get the epoxy to stick I'd need to press the top to the frame which might deform it. I'll try and grab some photos in daylight tomorrow. Getting the sense this is a very aftermarket hood though, based on this crap. Or did later year XJs shoot for lighter hoods? '98 here.

 

T

trippled

NAXJA Forum User

Location

colorado springs, co

• Feb 22, 2017

• #4

Could try some camper foam or possibly a seam sealer that can work on a gap that size. The camper foam is for sealer truck toppers. Sold at hardware stores

 

cherokeefan_1

NAXJA Forum User

Location

North idaho

• Feb 22, 2017

• #5

I can't remember the product we used at the body shop, I think it's a 3m product. I'll see if I can dig up the name. The problem is cheap Chinese products are made so poorly. A thick seam sealer would work. Otherwise fusor and 3m make some really good adhesives/epoxies that would work if you can prep the surfaces. I'd personally go find a factory hood and have it paint matched and blended.

 

A

asymptonic

NAXJA Member

NAXJA Member

Location

Austin, Texas

• Feb 22, 2017

• #6

cherokeefan_1 said:

I can't remember the product we used at the body shop, I think it's a 3m product. I'll see if I can dig up the name. The problem is cheap Chinese products are made so poorly. A thick seam sealer would work. Otherwise fusor and 3m make some really good adhesives/epoxies that would work if you can prep the surfaces. I'd personally go find a factory hood and have it paint matched and blended.

Click to expand...

Yeah, I'm kind of committed now, what with it being on and painted. Next time I need one I'll definitely hit a junkyard. I don't really have the ability to prep so I'll give the camp foam a shot.

 

9

90xj06

NAXJA Forum User

Location

Peabody, MA

• Feb 22, 2017

• #7

maybe a liquid nails type product? not sure how hot the hood would get or if it would degrade.

 

cherokeefan_1

NAXJA Forum User

Location

North idaho

• Feb 23, 2017

• #8

Prep would be scuff with say 600g or red scotch Brite pad, grey would work too but red is better. Wipe with enamel reducer to clean.

 

R

Runnin'OnEmpty

NAXJA Forum User

Location

Southeast USA

• Feb 23, 2017

• #9

There's a product called 3M FlexFoam that's used to bond hood,
door, and trunk bracing. It comes in a spray can and you simply
shoot it into the cracks between the bracing and hood.
(That might be what Cherokeefan_1 is talking about).

I'd think a tube of 3M Silicone would work OK too.

 

A

asymptonic

NAXJA Member

NAXJA Member

Location

Austin, Texas

• Feb 24, 2017

• #10

That sounds right. Looking at it, its clear its a spray or squeeze foam that merely got painted by the paint guys with the gloss black that wound up everywhere.

The quest for perfection by 200k continues...