Advice for those prepping and painting a bonus built hood
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Cargo Master
Joined: Apr 2005
Posts: 3,337
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From: Harpswell Maine
Advice for those prepping and painting a bonus built hood
I am in the process of prepping/block sanding the hood on my F-1. I had stripped it to bare metal, did a bit of filling on the top and shot 1st prime. I decided that I should install the radiator dam with new rubber that is installed in the forward part of the hood since it would have the potential to push the hood up where the rubber on top of the air dam contacts the hood.
The short answer is that it will push the hood up just a little such that I recommend installing it for the final blocking of the hood. Waves in the hood will haunt you forever!
The short answer is that it will push the hood up just a little such that I recommend installing it for the final blocking of the hood. Waves in the hood will haunt you forever!
Hotshot
Joined: Oct 2009
Posts: 16,173
Likes: 4,780
From: Burbank, WA
That is good advice, Bill. It's no different than using a torque plate when boring or honing cylinder walls in your engine. Having the bracing in place makes all the difference in the world for working with the correct shape. Sitting in the drivers seat, flaws in the hood will catch your eye every time you drive the truck.
Elder User
Joined: Mar 2012
Posts: 787
Likes: 1
From: Prescott AZ.
Bill I have one of those waves in the hood that your talking about. Most people can't see it but I can. It didn't show up until I put on color. I resanded, glazed, primed, guide coated, reshot the hood and clear and in the right light there it is again.
Sometimes it is just not fun being the guy that did all the paint and body work because we know were all the bad spots are.
Sometimes it is just not fun being the guy that did all the paint and body work because we know were all the bad spots are.
Fleet Owner
Joined: Dec 2000
Posts: 25,375
Likes: 5,385
From: Central PA
I am in the process of prepping/block sanding the hood on my F-1. I had stripped it to bare metal, did a bit of filling on the top and shot 1st prime. I decided that I should install the radiator dam with new rubber that is installed in the forward part of the hood since it would have the potential to push the hood up where the rubber on top of the air dam contacts the hood.
The short answer is that it will push the hood up just a little such that I recommend installing it for the final blocking of the hood. Waves in the hood will haunt you forever!
The short answer is that it will push the hood up just a little such that I recommend installing it for the final blocking of the hood. Waves in the hood will haunt you forever!
On another thread about this piece it was brought up that they are important for forcing air into the radiator and not around it.
Hotshot
Joined: Oct 2009
Posts: 16,173
Likes: 4,780
From: Burbank, WA
The deflector plate that fits in the hood is the same for 48-52. But they are different for 6 or 8 cylinder, as the radiator position is different and it requires a different sized deflector to match.
Fleet Owner
Joined: Dec 2000
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Likes: 5,385
From: Central PA
Oh, that is good to know! Mine is from a 6 cylinder. Thanks.
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Cargo Master
Joined: Apr 2005
Posts: 3,337
Likes: 165
From: Harpswell Maine
Bill I have one of those waves in the hood that your talking about. Most people can't see it but I can. It didn't show up until I put on color. I resanded, glazed, primed, guide coated, reshot the hood and clear and in the right light there it is again.
Sometimes it is just not fun being the guy that did all the paint and body work because we know were all the bad spots are.
Sometimes it is just not fun being the guy that did all the paint and body work because we know were all the bad spots are.
Chuck,
I ended up rebending the tabs at the outer ends of the air dam such that I eased the pressure where the rubber gasket pushes up on the hood. It helped considerably.
I agree with your last sentence!
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Fleet Owner
Joined: Jul 2004
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From: NM
It's probably too late if you have paint on the hood, but another thing to check is the fit to the cowl. They seem to get "flattened" on the underhood brace that connects the hinge points on the hood. That makes it hard to get the hood to sit down properly.
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Joined: Mar 2005
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From: Rio Rancho, NM
That's a great tip on the Bonus Built hoods.
I'm not running a deflector in my truck. I have a custom radiator and shrouding so I don't need the hood deflector. But, I'm wondering if it might be necessary to add something in there to create a little stiffness in the hood. Hmm, just something else to fabricate.
Bobby
I'm not running a deflector in my truck. I have a custom radiator and shrouding so I don't need the hood deflector. But, I'm wondering if it might be necessary to add something in there to create a little stiffness in the hood. Hmm, just something else to fabricate.
Bobby
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