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 05-25-2007, 03:22 AM   #1
mexgrhd68
Registered User
 
mexgrhd68's Avatar
 
Join Date: Apr 2007
Location: Visalia, CA.
Posts: 327
Angry leaky holley intake manifold

I have a 68 chevy with an 83 305 from a monte carlo, I recently installed an holley aluminum intake manifold and it leaks like crazy . Should I have put somekind of thread sealer on the bolts? It's torqued down and it just leaks like crazy. Intake isn't cracked or anything like that. To top it off, it just made my shiny intake look NASTY!!
mexgrhd68 is offline   Reply With Quote
Old 05-25-2007, 03:25 AM   #2
AR15DEFENSE
Resident Absorber
 
AR15DEFENSE's Avatar
 
Join Date: Mar 2007
Location: WI
Posts: 131
Re: leaky holley intake manifold

oil, coolant, or vacuum?
__________________
The best offense is a better DEFENSE!
AR15DEFENSE is offline   Reply With Quote
Old 05-25-2007, 03:40 AM   #3
mexgrhd68
Registered User
 
mexgrhd68's Avatar
 
Join Date: Apr 2007
Location: Visalia, CA.
Posts: 327
Re: leaky holley intake manifold

Quote:
Originally Posted by AR15DEFENSE View Post
oil, coolant, or vacuum?
OIL
mexgrhd68 is offline   Reply With Quote
Old 05-25-2007, 03:53 AM   #4
GREASEMONKEY72
Registered User
 
GREASEMONKEY72's Avatar
 
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
Re: leaky holley intake manifold

is it leaking around the middle bolts and puddling on the intake?


if so pull those bolts, clean them and wrap some teflon tape around them and put them back in and problem solved, did that with mine and hasnt leaked since
__________________
-steven
Alte Seele S.S.

"Allison" '72 C/10 LWB 350SB/TH350 - DD

PITBULL IS NOT A CRIME

Last edited by GREASEMONKEY72; 05-25-2007 at 03:54 AM.
GREASEMONKEY72 is offline   Reply With Quote
Old 05-25-2007, 06:26 AM   #5
cdowns
Senior Member
 
cdowns's Avatar
 
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
Re: leaky holley intake manifold

thread sealant is a must on intake manifold bolts thats why they say so in the service manuals
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane

MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF

DONT BELIEVE EVERYTHING YOU THINK

TAKE MY ADVISE;I DON'T USE IT ANYWAY
cdowns is offline   Reply With Quote
Old 05-25-2007, 06:53 AM   #6
70c10
67-72 Addict!
 
70c10's Avatar
 
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
Re: leaky holley intake manifold

Mine leak too. I've tried the liquid thread sealant with no luck. I'll try the tape.
__________________
Jim

1970 C/10 Fleetside w/Ghost Flames
Lowered 4.5" front and 4" rear (Raked)
355/350 Turbo w/shift kit
10" Redneck Performance Verter w/2500 stall
Hooker Super Comps part#2808-1
Performer RPM Air-Gap
12 Bolt w/3:73 gears- Eaton Posi
Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads
70c10 is offline   Reply With Quote
Old 05-25-2007, 08:46 AM   #7
Billla
Account Suspended
 
Billla's Avatar
 
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,814
Re: leaky holley intake manifold

Quote:
Originally Posted by cdowns View Post
thread sealant is a must on intake manifold bolts thats why they say so in the service manuals


I'm not a big fan of Teflon tape on these bolts as they protrude into the coolant passages and the cam valley. You do not want loose Teflon tape running around in the engine...
Billla 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 02:22 AM.


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