The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-21-2012, 09:41 PM   #1
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Hood problems and fix?

So my '76 has the bad case of the bends. It has obligatory bow and crack in the center edge of the hood due to the hinges. I am going to replace my hood anyhow but before I do that what should I do about the hinges to keep this from happening again. I've see the angle peices used to support the hood and all but surely there's something better. Any thoughts and what did you do to solve that problem. Thanks.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 11-21-2012, 10:01 PM   #2
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Hood problems and fix?

Lmc sells hood support brackets for this.

You have taco hood syndrome your hood is folded like a taco shell lol
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 11-21-2012, 10:14 PM   #3
asphaltburner
Registered User
 
asphaltburner's Avatar
 
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
Re: Hood problems and fix?

When you buy your new hood, if you have good hinges, keep them lubed,...if not, buy new hinges with your new hood. Keep them lubed and your new hood will be just fine.
FRANKENTRUCK got new hinges and a new hood at the same time. I keep the hinges clean and lubed and it all works just fine on a regular basis. My new hood came reinforced at the former "weak spot" that was meant for protection of the driver in a collision (guess that means it could decapitate me in a collision,...HA! I just don't intend hitting anything head on).
In the mean time you can use angled steel to bolster the hood bend on either side.
Todd.
__________________
'78 3/4 ton 4x4 custom "Todd-built" FRANKENTRUCK!
asphaltburner is offline   Reply With Quote
Old 11-21-2012, 10:25 PM   #4
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,941
Re: Hood problems and fix?

I don't think the braces are a good idea. The Hood is designed with a weak point to fold up in a front end collision rather than decapitating the occupants.

Lube the hinges with a synthetic penetrating spray lubricant like Wurth HHS-K. Penetrating lubricant is a grease dissolved in a volatile light solvent carrier. The solvent carrier allows the grease to flow into tight spaces and then evaporates leaving the grease behind. WD Kroil etc are not this class of lubricants because they evaporate completely.

Work the hinges using the kinked hood for leverage till they operate smoothly all the way up and down. Once they are operating smoothly put an undamaged hood on and keep em lubed up.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is offline   Reply With Quote
Old 11-21-2012, 10:26 PM   #5
THE "10" SILVERADO
Registered User
 
THE "10" SILVERADO's Avatar
 
Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
Re: Hood problems and fix?

Quote:
Originally Posted by asphaltburner View Post
When you buy your new hood, if you have good hinges, keep them lubed,...if not, buy new hinges with your new hood. Keep them lubed and your new hood will be just fine.
FRANKENTRUCK got new hinges and a new hood at the same time. I keep the hinges clean and lubed and it all works just fine on a regular basis. My new hood came reinforced at the former "weak spot" that was meant for protection of the driver in a collision (guess that means it could decapitate me in a collision,...HA! I just don't intend hitting anything head on).
In the mean time you can use angled steel to bolster the hood bend on either side.
Todd.
Yeah, I had a set of those "reinforcement" plates but the guy doing my bodywork told me about how having those on there would keep the hood from buckling in a head on collision and how it could send the hood through the windshield. I opted for new hinges and lube....
__________________
Michael
Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9
THE "10" SILVERADO is offline   Reply With Quote
Old 11-21-2012, 10:29 PM   #6
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Hood problems and fix?

Quote:
Originally Posted by THE "10" SILVERADO View Post
Yeah, I had a set of those "reinforcement" plates but the guy doing my bodywork told me about how having those on there would keep the hood from buckling in a head on collision and how it could send the hood through the windshield. I opted for new hinges and lube....
Huh interesting to know
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 11-21-2012, 10:31 PM   #7
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: Hood problems and fix?

My hood had a small crease in that area when I got the truck. I use liquid wrench lubricating oil on the hinges and it doesn't bend anymore.
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-21-2012, 10:43 PM   #8
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Hood problems and fix?

I kept my hinges lubed and all I just don't want to put another hood on it and it go to crap. I wondered if the springs were the root of evil here? And if there are or are replacement springs different than the ones that came factory. Thanks.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 11-21-2012, 10:48 PM   #9
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: Hood problems and fix?

What of you straighted it out and put some welds on it to keep it and slightly reinforce the hood. I think the hood wood still buckle some in the event of a collision.
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-22-2012, 10:18 AM   #10
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Hood problems and fix?

I thought about welding it but the hood is already bent from one a Santa's deers. So I had intention of replacing it but was more worried of putting another hood on and the same thing happens again. You could very easily weld these cracks up but I seem cracking right back though. Did think about doing that before the deer......
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 11-22-2012, 11:08 AM   #11
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,941
Re: Hood problems and fix?

Quote:
Originally Posted by GM-power View Post
My hood had a small crease in that area when I got the truck. I use liquid wrench lubricating oil on the hinges and it doesn't bend anymore.
Posted via Mobile Device
Liquid Wrench is a penetrating oil not a lubricant. It completely evaporates leaving nothing with lubricity behind...
Penetrating lubricants are a heavy grease with a light fast evaporating solvent carrier. When the solvent evaporates the lubricating grease is still there.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
hatzie is offline   Reply With Quote
Old 11-22-2012, 11:20 AM   #12
Seventy
Registered User
 
Join Date: Oct 2012
Location: Kansas
Posts: 22
Re: Hood problems and fix?

Quote:
Originally Posted by rusty76 View Post
I kept my hinges lubed and all I just don't want to put another hood on it and it go to crap. I wondered if the springs were the root of evil here? And if there are or are replacement springs different than the ones that came factory. Thanks.
My hinges were shot, and the hood wouldn't lay correctly, also worried about bending it. Heaven forbid I spend any of my go fast budget on new hinges, so I just pulled the springs, and use a prop rod. Works good...only a lil heavy.
Seventy is offline   Reply With Quote
Old 11-22-2012, 11:26 AM   #13
frog210
Registered User
 
Join Date: Mar 2012
Location: San Antonio, Tx
Posts: 784
Re: Hood problems and fix?

Aint you also suppose to push your hood in instead of pull it down also?
__________________
San Antonio, TEXAS
-Frog

-I'm a valet and well I've driven BMWs, Mercedes, Porsche,Bentlys, fiats, Hondas, etc and well even do I like a few features, I love my shortbed, it dosent bore me out, just press on the gas and you'll remember why you love it.
frog210 is offline   Reply With Quote
Old 11-22-2012, 12:39 PM   #14
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: Hood problems and fix?

Quote:
Originally Posted by hatzie View Post
Liquid Wrench is a penetrating oil not a lubricant. It completely evaporates leaving nothing with lubricity behind...
Penetrating lubricants are a heavy grease with a light fast evaporating solvent carrier. When the solvent evaporates the lubricating grease is still there.
Liquid wrench has a line of penetrates/lubricants. They have a lube oil and a separate penetrant. I've used lq wr for awhile and like their product.
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-23-2012, 04:20 AM   #15
asphaltburner
Registered User
 
asphaltburner's Avatar
 
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
Re: Hood problems and fix?

Geeze,...if I get my FRANKENTRUCK involved in a head on, I hope it decapitates me!
You guys are paranoid.
New hood, lube the good hinges or get new ones and keep them lubed,
WD 40 does not lube, it's a penetrating oil. Use grease or oil.
This is a no brainer!
Todd.
__________________
'78 3/4 ton 4x4 custom "Todd-built" FRANKENTRUCK!
asphaltburner is offline   Reply With Quote
Old 11-23-2012, 06:19 PM   #16
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: Hood problems and fix?

i got a taco ,with mine has 3 pins so i don't loose my head
later years have a corner bracket on instead(seperate cowel type)
oil lots of it
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Old 11-23-2012, 08:40 PM   #17
wileecoyote427
Registered User
 
wileecoyote427's Avatar
 
Join Date: Nov 2010
Location: cape may nj
Posts: 94
Re: Hood problems and fix?

i know harwood makes a set of low tension springs for their bolt on glass hoods not sure if theyd work with the steel hood and id use the hood braces on a steel hood they recommend some self tappers for install if you hit something hard enough to crumple the hood youd shear them off
wileecoyote427 is offline   Reply With Quote
Old 11-23-2012, 11:45 PM   #18
krazy_texan
Registered User
 
krazy_texan's Avatar
 
Join Date: Oct 2002
Location: West Des Moines, Ia
Posts: 3,233
Re: Hood problems and fix?

My understanding is that the later 70s trucks where more rigid at this point than the earlier ones from the factory while they still will crease in the middle they are stronger so maybe that's something to look into as well
Posted via Mobile Device
__________________
Krazy Texan
My Trucks are made with Wrenches not Chop Sticks
1967 GMC 3/4 ton "Johnny Cash"
1990 v1500 suburban
1967 Ford f100 Swb 4x4 "green bean"


GOD BLESS JESUS, JOHN WAYNE, AND THE ALAMO
krazy_texan is offline   Reply With Quote
Old 11-24-2012, 10:19 AM   #19
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Hood problems and fix?

I'll do.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 06-09-2015, 05:13 PM   #20
man7sell
Registered User
 
man7sell's Avatar
 
Join Date: Feb 2014
Location: Granite Falls, WA
Posts: 84
Re: Hood problems and fix?

This is perfect, because my hood folded on the driver's side when I closed it. I was going to weld a stiffener by readying here will dis-wade me. lubing the hinges looks like the way to go. My though was to replace the hood because I don't think I will every get it straight again. Of cause if the replacement is as good as the factory, theoretically it should last many years before bending as this one has lasted since 1974.... Right?
__________________
Capt. Paul Mansell
1974 Chevy Stepside
man7sell is offline   Reply With Quote
Old 06-09-2015, 05:44 PM   #21
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Hood problems and fix?

Wow this thread came back from the dead. Cool. I feel sure I could straighten my hood out and support it were the bend is. Mines not terrible but not far from being bad either. On the other side thanks to a deer many years ago it got bent in the front right corner and looks like dung now. Oh well. But I feel if you do what these guys suggest you'll be good to go. Good luck.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 06-10-2015, 07:06 AM   #22
cadillac_al
Registered User
 
Join Date: Oct 2013
Location: Maine
Posts: 2,354
Re: Hood problems and fix?

I can't stand a stiff hood. If it doesn't close easily it needs some oil.
__________________
76 Chevy K20
76 GMC K15
77 Chevy C10
77 Chevy K10
cadillac_al is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:55 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com