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 05-15-2004, 08:12 PM   #1
hank
Registered User
 
Join Date: Aug 2001
Location: texas, usa
Posts: 194
exhaust manifold question

i've got a '71 cheyenne with a 350 and ramhorn stock manifolds. this week i got new exhaust(dual dynomax turbos, aluminized pipe with an H pipe). all is great, sounds great and i've got more power.

today i got an exhaust leak and it seems to be coming from the passenger side manifold. only happens when i putting my foot into it.

i have a few of questions:

1) is there a gasket there that i could have blown, or is it more likely a crack in my manifold?

2)is it just a coincidence that this happened a couple of days after i got new pipes? or could they have been damaged during installation. the shop i took it to has a great reputation, so i would hope they would have told me if something had happened.

3)has anyone ever heard of installing glass packs BEFORE the mufflers to quiet them down?

help me make her sound as good as she looks again.

thanks for any help.
Attached Images
 

Last edited by hank; 05-15-2004 at 08:36 PM.
hank is offline   Reply With Quote
Old 05-15-2004, 09:46 PM   #2
72C203503ONTHETREE
Registered User
 
72C203503ONTHETREE's Avatar
 
Join Date: Apr 2004
Location: Grant, Alabama
Posts: 504
Its probably the donut between the pipe and manifold. Mine is leaking there also and will get that fixed once I get the engine work done.
__________________
72 Chevy C20, SOLD (Dang it.)

09 Challanger RT six speed in all black.

74 Datsun 710 wagon, all 1.8 liters of screaming Datsun power.

73 C10 long bed, 350/350 combo, nice shape.
72C203503ONTHETREE is offline   Reply With Quote
Old 05-15-2004, 09:58 PM   #3
hank
Registered User
 
Join Date: Aug 2001
Location: texas, usa
Posts: 194
it seems to be coming from up around the engine not from the pipe end.

is there a good trick to pinpoint the noises location?
hank is offline   Reply With Quote
Old 05-16-2004, 12:26 PM   #4
hank
Registered User
 
Join Date: Aug 2001
Location: texas, usa
Posts: 194
anyone else have any ideas or info?
hank is offline   Reply With Quote
Old 05-16-2004, 12:37 PM   #5
Jimmy72custom
Registered User
 
Jimmy72custom's Avatar
 
Join Date: Apr 2004
Location: Willits Ca
Posts: 261
I use a stethoscope (like a doctor) to find noises in and around my engine. Works well.
Jimmy72custom is offline   Reply With Quote
Old 05-16-2004, 12:55 PM   #6
ljbear
Registered User
 
ljbear's Avatar
 
Join Date: Jan 2003
Location: Emmett, Idaho
Posts: 858
Quote:
Originally Posted by Jimmy72custom
I use a stethoscope (like a doctor) to find noises in and around my engine. Works well.
If you don't have access to a stethoscope get a length of 1/4" hose and use it like a stethocope. Put one end near your ear and place the other end where you think the leak is. Works great and pretty cheap.
__________________
Larry

72 Chevy SWB 4x4
71 Chevy SWB 4x4

My Work Truck

"Don't confuse enthusiasm with capability"
ljbear 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 04:28 AM.


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