What is the function of this piece? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72c20customcamper · 02-26-2020, 10:45 AM

My 77 burban. This is on the cowl, strap with what looks like saw teeth.

rodstored-72 · 02-26-2020, 10:48 AM

not sure.. but it looks like near the same place that on my truck is the "straps" to hold the washer fluid lines from the pump???

good luck!

72c20customcamper · 02-26-2020, 10:52 AM

Didn't delve any deeper than taking the photo. I'll pull the cowl screens to look closer . Need to wax under there anyway

demian5 · 02-26-2020, 11:19 AM

It touches the hood and is a goofy ground I believe.

Redneck Rydes · 02-26-2020, 11:25 AM

I am also thinking some kind of ground

72c20customcamper · 02-26-2020, 12:42 PM

Quote:

Originally Posted by demian5

It touches the hood and is a goofy ground I believe.

Quote:

Originally Posted by Redneck Rydes

I am also thinking some kind of ground

Thought that could be too. But what needs to be grounded on the hood? And there is a very strong ground on the hinges . Spring makes a good ground from hood to fender.

77 ChevySport · 02-26-2020, 02:49 PM

Yes it is a ground strap. Chevy used this on Corvettes that grounded the Air
Cleaner base and the Ignition Shielding. See Picture Below. Larry

rpmerf · 02-26-2020, 02:52 PM

Quote:

Originally Posted by 72c20customcamper

Thought that could be too. But what needs to be grounded on the hood? And there is a very strong ground on the hinges . Spring makes a good ground from hood to fender.

Light mounted on the hood? Pretty sure on my 97, there was a ground strap for the light.

72c20customcamper · 02-27-2020, 10:22 AM

Quote:

Originally Posted by rpmerf

Light mounted on the hood? Pretty sure on my 97, there was a ground strap for the light.

No light but when you lift the hood the ground would be cut as it only hits when its closed.

**mongocanfly** · 02-27-2020, 11:10 AM

Wheres Keith?.....he'll have the answer
I dont think I've ever seen one on a truck before

Keith Seymore · 02-27-2020, 01:07 PM

Quote:

Originally Posted by mongocanfly

Wheres Keith?.....he'll have the answer
I dont think I've ever seen one on a truck before

It's a ground strap.

It helps with radio function (reduced static as a result of the hood functioning as an antenna).

K

rodstored-72 · 02-28-2020, 04:57 PM

Quote:

Originally Posted by Keith Seymore

It's a ground strap.

It helps with radio function (reduced static as a result of the hood functioning as an antenna).

K

KEITH,
Do you know if this is specific to burbs? or is it on all models (trucks) with glass antenna? I don't believe my truck has one...

**mongocanfly** · 02-29-2020, 12:24 AM

Never would have guessed the hood as a antenna..you the man Keith..

Big Chip · 02-29-2020, 10:17 AM

Quote:

Originally Posted by rodstored-72

KEITH,
Do you know if this is specific to burbs? or is it on all models (trucks) with glass antenna? I don't believe my truck has one...

My 79 C35 has it. Antenna is in the glass on mine.

**mongocanfly** · 02-29-2020, 10:24 AM

My 81 C30 doesnt have one...antenna in glass on mine..

72c20customcamper · 02-29-2020, 10:46 AM

Quote:

Originally Posted by Keith Seymore

It's a ground strap.

It helps with radio function (reduced static as a result of the hood functioning as an antenna).

K

Okay so now I know. Mine has the stupid glass antenna. Great in the flat lands works for **** in the mountains. But it's the original glass .

**mongocanfly** · 03-01-2020, 09:37 PM

another thing I noticed Mark ..is your hood seal is on the cowl on your 77...my 81 the cowl seal is on the hood...but mine has a hole in the firewall cowl area that looks like its where your strap is mounted..

LTZMAN · 03-02-2020, 08:15 PM

1980 and 1981 z28 has it to ground the air induction. my guess a ground for the hood light.

Axle · 03-09-2020, 11:00 AM

Quote:

Originally Posted by mongocanfly

Never would have guessed the hood as a antenna..you the man Keith..

The hood is part of the ground plane, if its floating with respect to the other body parts the radio reception will get funky in one way or another as you travel. Think CB antennas, best spot for the antenna is dead center of the roof, provides the best reception/transmission for the antenna to radiate in all directions, vs mirror mounted antenas, or bumper mounted antennas where the ground plane only exists in one direction, rx/dx will favor a specific direction based on where the ground plane is.

**hatzie** · 03-09-2020, 06:14 PM

Quote:

Originally Posted by Axle

The hood is part of the ground plane, if its floating with respect to the other body parts the radio reception will get funky in one way or another as you travel. Think CB antennas, best spot for the antenna is dead center of the roof, provides the best reception/transmission for the antenna to radiate in all directions, vs mirror mounted antenas, or bumper mounted antennas where the ground plane only exists in one direction, rx/dx will favor a specific direction based on where the ground plane is.

Thank you.

You can likely attach a braided ground strap from the firewall to a hinge bolt on both sides and get the same result.

02-26-2020, 10:45 AM	#1
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,635	What is the function of this piece? My 77 burban. This is on the cowl, strap with what looks like saw teeth. Attached Images __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

02-26-2020, 10:48 AM	#2
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 2,003	Re: What is the function of this piece? not sure.. but it looks like near the same place that on my truck is the "straps" to hold the washer fluid lines from the pump??? good luck!

02-26-2020, 10:52 AM	#3
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,635	Re: What is the function of this piece? Didn't delve any deeper than taking the photo. I'll pull the cowl screens to look closer . Need to wax under there anyway __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

02-26-2020, 11:19 AM	#4
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: What is the function of this piece? It touches the hood and is a goofy ground I believe. __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

02-26-2020, 11:25 AM	#5
Redneck Rydes Registered User Join Date: Feb 2016 Location: Trenton,Ontario & South Carolina Posts: 755	Re: What is the function of this piece? I am also thinking some kind of ground

02-26-2020, 02:49 PM	#7
77 ChevySport Registered User Join Date: Oct 2010 Location: Central, IL Posts: 201	Re: What is the function of this piece? Yes it is a ground strap. Chevy used this on Corvettes that grounded the Air Cleaner base and the Ignition Shielding. See Picture Below. Larry

02-27-2020, 11:10 AM	#10
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,662	Re: What is the function of this piece? Wheres Keith?.....he'll have the answer I dont think I've ever seen one on a truck before __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver Last edited by mongocanfly; 02-27-2020 at 11:15 AM.

02-29-2020, 12:24 AM	#13
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,662	Re: What is the function of this piece? Never would have guessed the hood as a antenna..you the man Keith.. __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

02-29-2020, 10:24 AM	#15
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,662	Re: What is the function of this piece? My 81 C30 doesnt have one...antenna in glass on mine.. __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

03-01-2020, 09:37 PM	#17
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,662	Re: What is the function of this piece? another thing I noticed Mark ..is your hood seal is on the cowl on your 77...my 81 the cowl seal is on the hood...but mine has a hole in the firewall cowl area that looks like its where your strap is mounted.. __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

03-02-2020, 08:15 PM	#18
LTZMAN Registered User Join Date: Nov 2019 Location: Greenville SC Posts: 55	Re: What is the function of this piece? 1980 and 1981 z28 has it to ground the air induction. my guess a ground for the hood light. __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=798625



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