C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Intake Manifold Leaking

Thread Tools
 
Search this Thread
 
Old Apr 16, 2003 | 08:56 PM
  #1  
WhiskeyPapa's Avatar
WhiskeyPapa
Thread Starter
Advanced
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2001
Posts: 85
Likes: 0
From: Newport News Va
Default Intake Manifold Leaking

This is an "amendment" to a thread I posted about my heads leaking.
I finally got the intake manifold off, and it's definately leaking oil...the heads aren't.
What worries me is this:

This crud was on the torx bolts holding the manifold down....
Anybody ever seen this???
Should I be worried, or will this go away when I re-seal it?


[Modified by WhiskeyPapa, 8:58 PM 4/16/2003]
Reply
Old Apr 16, 2003 | 09:00 PM
  #2  
WhiskeyPapa's Avatar
WhiskeyPapa
Thread Starter
Advanced
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2001
Posts: 85
Likes: 0
From: Newport News Va
Default Re: Intake Manifold Leaking (WhiskeyPapa)

Ooops, I fixed the picture now.....
Reply
Old Apr 16, 2003 | 09:11 PM
  #3  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: Intake Manifold Leaking (WhiskeyPapa)

I would replace the bolt and make sure to put a little RTV on it when you reinstall the new one. :)
Reply
Old Apr 16, 2003 | 09:13 PM
  #4  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default Re: Intake Manifold Leaking (cprgmr)

Those were the ones holding the manifold to the heads right? Hit em' with a wire wheel, put some teflon paste on the threads and reinstall. Check em' out 500 miles later.
Reply
Old Apr 16, 2003 | 09:15 PM
  #5  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: Intake Manifold Leaking (scorp508)

Those were the ones holding the manifold to the heads right? Hit em' with a wire wheel, put some teflon paste on the threads and reinstall. Check em' out 500 miles later.
If you're cheap. Whenever you have rust, the original material is degraded. I wouldn't hesitate to replace one or two manifold bolts. :cheers:
Reply
Old Apr 16, 2003 | 09:17 PM
  #6  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default Re: Intake Manifold Leaking (cprgmr)

If you're cheap.
Those bolts are coated. I'm willing to bet that isn't rust from them. It just looks like the sealer on the bolt has turned color.
Reply
Old Apr 16, 2003 | 09:18 PM
  #7  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: Intake Manifold Leaking (scorp508)

Those bolts are coated. I'm willing to bet that isn't rust from them. It just looks like the sealer on the bolt has turned color.
That may be, but it looks like rust to me.
Reply
Old Apr 16, 2003 | 09:36 PM
  #8  
WhiskeyPapa's Avatar
WhiskeyPapa
Thread Starter
Advanced
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2001
Posts: 85
Likes: 0
From: Newport News Va
Default Re: Intake Manifold Leaking (cprgmr)

Nope, it's just some goopy stuff, not rust....I was just wondering what it was if anybody knew. Some of them had a little bit of white stuff....maybe dried and heated coolant?????
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 16, 2003 | 09:38 PM
  #9  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: Intake Manifold Leaking (WhiskeyPapa)

Nope, it's just some goopy stuff, not rust....I was just wondering what it was if anybody knew. Some of them had a little bit of white stuff....maybe dried and heated coolant?????
You really could've fooled me man - that stuff on the right bolt really looks like rust!
Reply
Old Apr 16, 2003 | 09:43 PM
  #10  
WhiskeyPapa's Avatar
WhiskeyPapa
Thread Starter
Advanced
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2001
Posts: 85
Likes: 0
From: Newport News Va
Default Re: Intake Manifold Leaking (cprgmr)

You'd think that from the pic, but it wiped right off (just w/ my fingers). If it's rust, it's awfully soggy rust. ;)
Reply
Old Apr 16, 2003 | 09:49 PM
  #11  
WhiskeyPapa's Avatar
WhiskeyPapa
Thread Starter
Advanced
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2001
Posts: 85
Likes: 0
From: Newport News Va
Default Re: Intake Manifold Leaking (WhiskeyPapa)

By the way, I've got a photo of the top side on my web page w/out the manifold on it....the bolts were from the middle of the closer side (where it's a little bit dirty) :mad


[Modified by WhiskeyPapa, 9:50 PM 4/16/2003]
Reply
Old Apr 16, 2003 | 10:20 PM
  #12  
Vic'89's Avatar
Vic'89
Safety Car
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Default Re: Intake Manifold Leaking (WhiskeyPapa)

Hit the bolts with a wire wheel on a bench grinder. Takes all the junk off the bolts. Makes the installation easier also.

Vic
Reply
Old Apr 17, 2003 | 12:14 AM
  #13  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: Intake Manifold Leaking (WhiskeyPapa)

Go to Sears and a thread chaser tap & die to clean up those bolts and the bolt holes.

Then coat the bolt threads with Permatex #2 before installing.
Reply
Old Apr 17, 2003 | 04:52 PM
  #14  
86Pacecar's Avatar
86Pacecar
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Mar 2003
Posts: 1,174
Likes: 6
From: NW MN
Default Re: Intake Manifold Leaking (WhiskeyPapa)

Just did my 86 and my bolts looked identical to yours. Cleaned right up with the wire wheel, used Perematex #2 before install. Be sure to clean up the bolt holes too so you will get proper torque when reinstalling. It's a fun job, isn't it.
Reply

Get notified of new replies

To Intake Manifold Leaking





All times are GMT -4. The time now is 02:10 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE