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 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-05-2007, 01:03 AM   #1
Jtrux
I'm a poor spectator
 
Jtrux's Avatar
 
Join Date: Aug 2006
Location: San Antonio, Tx
Posts: 2,287
Hood vibrations

The center of the hood on my blazer vibrates alot when I drive it. You can push in on it alot too. Does everyone notice this or am I the only one. I figure I can reinforce it from the bottom but I just wanted to get an idea if everyone's hood deflects like that.
__________________
2006 Jeep Unlimited IMPACT ORANGE

1993 Chevy 2500 4x4 ExCab LWB 454/NV4500 Tow rig

1977 Ford F100 2x4 LWB 1st truck I owned, still have it!!!

1979 Ford F150 4x4 SWB Built Ford Tough!!!

1971 Chevy Blazer 350 / SM465 / NP205 UNDER CONSTRUCTION Soon to have a LQ4 6.0!!!
Jtrux is offline   Reply With Quote
Old 08-05-2007, 01:19 AM   #2
hotrodhomi
Registered User
 
hotrodhomi's Avatar
 
Join Date: Apr 2004
Location: Sacramento
Posts: 3,737
Re: Hood vibrations

I think this is a common problem.
__________________
'72 2wd blazer, bagged w/ watts link & EDC
'72 C10 "Lowered Farm Truck" STOLEN 5-18-11
'66 impala ht
hotrodhomi is offline   Reply With Quote
Old 08-05-2007, 01:55 AM   #3
old man jimmy
Registered User
 
Join Date: May 2007
Location: texas
Posts: 329
Re: Hood vibrations

when new they had foam strips between hood braces & skin. If yours are gone you may want to cut some for it. They just push in & super easy to make almost anythig work.
old man jimmy is offline   Reply With Quote
Old 08-05-2007, 02:03 AM   #4
old man jimmy
Registered User
 
Join Date: May 2007
Location: texas
Posts: 329
Re: Hood vibrations

found a picture of the braces, and if you look close you can see an edge of the foam i was talking about sticking out. I have to tuck mine in every so ofter or they would have been gone long ago. The hoods are pretty flimsy but mine don't shake going down the road. Its a pretty closed cell foam.
Attached Images
 
old man jimmy is offline   Reply With Quote
Old 08-05-2007, 07:14 AM   #5
jaros44sr
Senior Member
 
jaros44sr's Avatar
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,694
Re: Hood vibrations

Good advice Old Man Jimmy, you beat me tuit. J.
__________________
Semper Fi...Uncle Sam, you da man

All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

AS usual, off topic

They say your mind goes second, can't remember the first


Jim
jaros44sr is offline   Reply With Quote
Old 08-05-2007, 09:05 AM   #6
herb101
Used Register
 
herb101's Avatar
 
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
Re: Hood vibrations

Mine vibrates too, but it seems like its the whole hood - sorta pivots back an forth on the latch point. I plan to eventually replace the side bumpers (the rubber blocks on the fenders) to see if that helps. That, coupled with a hood latch adjustment, should hold it down more firmly.

Herb
herb101 is offline   Reply With Quote
Old 08-05-2007, 11:15 AM   #7
pumpkin
Registered User
 
pumpkin's Avatar
 
Join Date: Apr 2006
Location: East Sooke B.C. Canada
Posts: 543
Re: Hood vibrations

I used spray in expandable foam between my braces and hood. It works great, and give the hood a solid sound.
pumpkin is offline   Reply With Quote
Old 08-06-2007, 01:03 AM   #8
Jtrux
I'm a poor spectator
 
Jtrux's Avatar
 
Join Date: Aug 2006
Location: San Antonio, Tx
Posts: 2,287
Re: Hood vibrations

Thanks for the responses, i'm gonna try the expandable foam idea, again thanks alot.
__________________
2006 Jeep Unlimited IMPACT ORANGE

1993 Chevy 2500 4x4 ExCab LWB 454/NV4500 Tow rig

1977 Ford F100 2x4 LWB 1st truck I owned, still have it!!!

1979 Ford F150 4x4 SWB Built Ford Tough!!!

1971 Chevy Blazer 350 / SM465 / NP205 UNDER CONSTRUCTION Soon to have a LQ4 6.0!!!
Jtrux is offline   Reply With Quote
Old 08-06-2007, 11:32 AM   #9
bouncytruck
SKINNY TIRES RULE!
 
bouncytruck's Avatar
 
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,049
Re: Hood vibrations

I'd get the replacement strips from one of the vendors rather than the expandable foam. You can't remove the expandable foam very easily and it doesn't look as nice.

My '69 had that (done by a PO). It worked great but I never liked the looks.
__________________
bouncytruck 1972 K5
The Hauler 1994 K1500 Suburban
The Daily2010 Kia Soul
Wife's Ride2014 Fiat 500L

Last edited by bouncytruck; 08-06-2007 at 11:33 AM.
bouncytruck is offline   Reply With Quote
Old 08-06-2007, 12:34 PM   #10
crzngmychvy
"1972 C5"
 
crzngmychvy's Avatar
 
Join Date: Jul 2004
Location: SoCal
Posts: 729
Re: Hood vibrations

Quote:
Originally Posted by pumpkin View Post
I used spray in expandable foam between my braces and hood. It works great, and give the hood a solid sound.
This is what I have. Works fine.
__________________
- 72 2wd Blazer ...sold...
2wd Blazer Page
crzngmychvy is offline   Reply With Quote
Old 08-06-2007, 12:37 PM   #11
crzngmychvy
"1972 C5"
 
crzngmychvy's Avatar
 
Join Date: Jul 2004
Location: SoCal
Posts: 729
Re: Hood vibrations

Quote:
Originally Posted by bouncytruck View Post
I'd get the replacement strips from one of the vendors rather than the expandable foam. You can't remove the expandable foam very easily and it doesn't look as nice.

My '69 had that (done by a PO). It worked great but I never liked the looks.
This is true too, but I think it would not be too hard to clean it up a bit, just don't wait for it to dry completely because it can pull the paint off if you try to trim/clean it up once dry.
__________________
- 72 2wd Blazer ...sold...
2wd Blazer Page
crzngmychvy is offline   Reply With Quote
Old 08-06-2007, 01:08 PM   #12
lks dcvn
Registered User
 
lks dcvn's Avatar
 
Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,346
Re: Hood vibrations

I wondered who did that to the hood Bouncy - I didn't want to make any comments, but when I popped the hood to have a look at the engine bay - I wasn't expecting to see bright yellow expanding foam on the underside of the hood -

Oh well - add it to the list of future updates...
lks dcvn is offline   Reply With Quote
Old 08-07-2007, 09:34 AM   #13
pumpkin
Registered User
 
pumpkin's Avatar
 
Join Date: Apr 2006
Location: East Sooke B.C. Canada
Posts: 543
Re: Hood vibrations

When I did mine I put masking tape down both sides, let it dry, and trimed with a knife. Then finished it off with some seam sealer and painted it. I think it looks great, and the hood is now solid
pumpkin is offline   Reply With Quote
Old 08-07-2007, 11:29 AM   #14
bouncytruck
SKINNY TIRES RULE!
 
bouncytruck's Avatar
 
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,049
Re: Hood vibrations

Quote:
Originally Posted by lks dcvn View Post
I wondered who did that to the hood Bouncy - I didn't want to make any comments, but when I popped the hood to have a look at the engine bay - I wasn't expecting to see bright yellow expanding foam on the underside of the hood -

Oh well - add it to the list of future updates...

It was actually much worse when I bought the truck. I trimmed quite a bit out. I never like the look but I couldn't figure out how to get it all out of there.
__________________
bouncytruck 1972 K5
The Hauler 1994 K1500 Suburban
The Daily2010 Kia Soul
Wife's Ride2014 Fiat 500L
bouncytruck is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 12:29 AM.


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