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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-27-2005, 03:03 PM   #1
Brainchild
Still drivin' a Rat Rod
 
Brainchild's Avatar
 
Join Date: Sep 2004
Location: Monett Missouri
Posts: 4,925
This thread is just in time.I have the same problem with the pipes coming loose.Nothing seems to help either.I'm changing exhaust in a few days,so I'll try hanging it from trans.
Seems the standars trucks are worse than the automatic trucks too.I did notice the problem got better when I changed motormounts.
__________________
Rusty Member #13872
Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the *a$#*

71 GMC LWB
49 Chevy
85 Chevy G20

Check out my website
Brainchild is offline   Reply With Quote
Old 02-28-2005, 01:51 AM   #2
4x4Poet
Registered User
 
Join Date: Nov 2004
Location: "Under Montana skies."
Posts: 1,836
If the only problem is the nuts loosening, try Stage8 fasteners. What is the manifold collector stud size? 3/8 bolt x 16 thread? Anyway, Stage8 sold me the nuts with their clip on piece that will hit the pipe before allowing the nut to back off the studs in my Rams Horn manifolds.
__________________
'71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.
4x4Poet is offline   Reply With Quote
Old 02-28-2005, 02:11 AM   #3
COBALT
Senior Member
 
COBALT's Avatar
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
I remember ole Stacy on Trucks showing a product on his show one time (usually I dismiss the products as wildly out of reach) that I thought was interesting.

They were these clamps that go around your collectors and essentially vice the thing together. It still used 3 bolts, but they were contained in a housing that provided uniform compression to the collector. Seemed like with the right bolts you could tighten those things down and they'd never leak.

I don't remember the vendor though...anyone remember what I'm talking about?
__________________
'69 3/4 ton C20 2wd-350ci/TH400
'69 3/4 ton Custom 20 2wd-350ci/4sp Manual
'99 2wd 5.7 Chevy Tahoe
Seattle, WA.
COBALT is offline   Reply With Quote
Old 02-28-2005, 02:41 AM   #4
4x4Poet
Registered User
 
Join Date: Nov 2004
Location: "Under Montana skies."
Posts: 1,836
Quote:
Originally Posted by COBALT
...They were these clamps that go around your collectors and essentially vice the thing together. It still used 3 bolts, but they were contained in a housing that provided uniform compression to the collector. Seemed like with the right bolts you could tighten those things down and they'd never leak....
Were those for headers? In his first post, the thread starter said he has the stock set-up, i.e. manifolds. I know what you're talking about as far as header collectors go. Don't remember a vendor, either.
__________________
'71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.
4x4Poet is offline   Reply With Quote
Old 02-28-2005, 11:53 AM   #5
COBALT
Senior Member
 
COBALT's Avatar
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
Ah they may have been for headers....but I imagine if you could chase down the vendor they may have a setup for manifolds as well! It would be smart on their part if they really wanted to help a hot-rodder out.

Again, they work like a clamp. They fit over the collector junction and provide uniform force over the entire connection rather than three points. Damn, I wish I could remember the vendor's name....
__________________
'69 3/4 ton C20 2wd-350ci/TH400
'69 3/4 ton Custom 20 2wd-350ci/4sp Manual
'99 2wd 5.7 Chevy Tahoe
Seattle, WA.
COBALT is offline   Reply With Quote
Old 02-28-2005, 12:39 PM   #6
RED71CHEVY
Registered User
 
RED71CHEVY's Avatar
 
Join Date: Dec 1999
Location: LEXINGTON,SC,USA
Posts: 208
try these , they are what was used for copperhead i think


http://amos.shop.com/amos/cc/main/ca...x-Coupler-Kits
__________________
TIM
'71 CUSTOM C-10 torch red ,350 roller GM crate,3.73 GEARS, REAR 4"DROP SPRING, FRONT 2.5" DROP SPINDLE-1.5"lower spring, FRONT=17x8(4.5bs) W/265-60-17, BACK=17x9.5 (5bs)W/285-60-17, Vintage Air Sure Fit AC------NEVER ENDING PROJECT!!
RED71CHEVY is offline   Reply With Quote
Old 03-03-2005, 04:21 AM   #7
67 SS
Registered User
 
Join Date: Jun 2002
Location: NW ARKANSAS
Posts: 258
I had the same problem a few years back.I had a new exhaust installed from the manifolds back and my passenger side pipe would work loose no matter how tight I cranked on it.I finally found out the donut was slowly shifting around due to a missing piece.Pull the pipes down and make sure there is something that will hold the donut in place.My driver side manifold had something to keep it in place but the passenger didn't.
67 SS 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 05:28 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com