C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Powder Coated Intake Problem?

Thread Tools
 
Search this Thread
 
Old Feb 2, 2019 | 04:28 PM
  #21  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Originally Posted by 7T1vette
Good luck on that one, as you chose to take it from their shop when it was done. If they make it good, great. I still don't see any problem with it.
Customers choose to take car parts home from the store every day. Doesn't mean they accept the part due to faulty workmanship.
Reply
Old Feb 2, 2019 | 10:13 PM
  #22  
ramair_bryan's Avatar
ramair_bryan
Safety Car
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
All Eyes On Me
 
Joined: Jan 2009
Posts: 3,873
Likes: 25
Default

Now's your chance to justify the extrude hone process.........
Reply
Old Feb 2, 2019 | 10:20 PM
  #23  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

Holeee Foghorn Leghorn... I say, I say, I say the sky is a Fallin' Y'all !
Reply
Old Feb 4, 2019 | 10:16 AM
  #24  
Jebbysan's Avatar
Jebbysan
Dr. Detroit
Supporting Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2012
Posts: 10,095
Likes: 4,024
From: New Braunfels Texas
Default

Ummmm....the inside does not look coated to me.....it is rough where the outside is smoother.......

Jebby
Reply
Old Feb 4, 2019 | 11:18 AM
  #25  
leadfoot4's Avatar
leadfoot4
Team Owner
25 Year Member
Active Streak: 60 Days
Active Streak: 90 Days
Community Builder
 
Joined: May 2001
Posts: 87,315
Likes: 1,585
From: Western NY
Default

I could possibly understand how "oil seepage" might be an issues where the manifold meets the "china walls" of the engine block if the surface was "too slippery". But at the intake/cylinder head interface, how could any kind of a sealing issue occur? You have a gasket, held in place by bolts and "crush compression" creating a mechanical seal.....
Reply
Old Feb 4, 2019 | 11:30 AM
  #26  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

It wont hurt a thing
Reply
Old Feb 4, 2019 | 11:49 AM
  #27  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Originally Posted by leadfoot4
I could possibly understand how "oil seepage" might be an issues where the manifold meets the "china walls" of the engine block if the surface was "too slippery". But at the intake/cylinder head interface, how could any kind of a sealing issue occur? You have a gasket, held in place by bolts and "crush compression" creating a mechanical seal.....
Vacuum created by the intake ports of the head create a constant battle for the gasket to keep oil vapors in the lifter valley from entering into the cylinder. You show me an engine that burns oil, fouls plugs, but has new valvestem seals, new pistons rings and I will show you where the bottom of the intake gasket sealing failed, allowing oil vapor to enter the head. And I am afraid that with that "non-ordered" coating on any mating surface, a leak will occur. Wither its gas, oil or air.

But, some of you posters are missing the point. O.P. paid for a top notch job and got a half botched job. Its not what he ordered, its not acceptable. Its time for the shop to put their big boy pants on and fix the issue. Its NOT normal to coat any gasket mating surface or plenum.

Last edited by HeadsU.P.; Feb 4, 2019 at 04:59 PM.
Reply
Old Feb 4, 2019 | 10:13 PM
  #28  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

OP didn't get written confirmation of job details; if OP sues he'll lose on that alone. Unless OP's Senor Quixote, perhaps he has bigger fish to fry.
No, job's not what OP expected & I'd like to see better. But it's not going to hurt a thing except maybe some pride. Pick your battles.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Feb 4, 2019 | 10:59 PM
  #29  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

take a peek into the CARB plenum of this AFR PLASTIC sbc Intake



https://www.airflowresearch.com/sbc-...-street-strip/
Reply
Old Feb 5, 2019 | 08:38 AM
  #30  
Tonio's Avatar
Tonio
Drifting
 
Joined: Apr 2017
Posts: 1,377
Likes: 282
From: Bedford New York
Default

The first step in the PC process is to sandblast the piece to remove surface contaminants. That carb mating surface and plenum appears to look like sandblasted aluminum, not shiny powdercoat like the rest of the manifold. Are you sure that you're not looking at clean sandblasted aluminum?
Reply
Old Feb 5, 2019 | 10:59 AM
  #31  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Originally Posted by jackson
OP didn't get written confirmation of job details; if OP sues he'll lose on that alone. Unless OP's Senor Quixote, perhaps he has bigger fish to fry.
No, job's not what OP expected & I'd like to see better. But it's not going to hurt a thing except maybe some pride. Pick your battles.
Its not about suing. No body said anything about suing. This is about getting what you paid your hard earned cash for. Its called moral obligation for the shop to make it right or face some bad mouthing against getting recommendations for future business and more customers. If they buy the O.P. a new manifold for a couple hundred, that's cheaper than lost future business. Word of mouth is everything in a small business.
Reply
Old Feb 5, 2019 | 11:21 AM
  #32  
leadfoot4's Avatar
leadfoot4
Team Owner
25 Year Member
Active Streak: 60 Days
Active Streak: 90 Days
Community Builder
 
Joined: May 2001
Posts: 87,315
Likes: 1,585
From: Western NY
Default

Originally Posted by jackson
take a peek into the CARB plenum of this AFR PLASTIC sbc Intake



https://www.airflowresearch.com/sbc-...-street-strip/
Yeah, that manifold, designed and manufactured under the direction of one of the premier aftermarket suppliers, certainly has a "rough" finish....



Originally Posted by Tonio
The first step in the PC process is to sandblast the piece to remove surface contaminants. That carb mating surface and plenum appears to look like sandblasted aluminum, not shiny powdercoat like the rest of the manifold. Are you sure that you're not looking at clean sandblasted aluminum?
Good question! There's been a LOT of discussion/assumption going on here, based on one, less than detailed, picture.

Reply
Old Feb 5, 2019 | 12:34 PM
  #33  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Yup, I hear ya. Looking back at the original post, the owner says: looks like they coated the entire intake inside & out. Goes on to say they did tape it off, took pictures.
But for some reason they removed the tape. WHY? Who does this?

It boils down to two people at fault. Owner for not speaking up when paying and the coating applier. The intake is not right, it will never be right. The O.P needs to ask if this 100% coating job is normal procedure. I really doubt it.

I would not waste my time or my money in gaskets installing that poor craftsmanship and hoping for the best. If the shop refuses to compensate, then cut your losses and buy a new intake, never go back to that shop.
Reply
Old Feb 5, 2019 | 01:09 PM
  #34  
khigley's Avatar
khigley
Thread Starter
Intermediate
 
Joined: Jul 2018
Posts: 47
Likes: 6
Default

Ok guys thanks for your help on this... the problem has been resolved.... shop made good on their error...
Reply
Old Feb 5, 2019 | 01:11 PM
  #35  
Tonio's Avatar
Tonio
Drifting
 
Joined: Apr 2017
Posts: 1,377
Likes: 282
From: Bedford New York
Default

What did they do?

Zooming in, I see what looks like tape parting lines on the carb mounting surface outer edge.....doesn't look powder coated to me, but my wife says that I'm going blind. lol

Last edited by Tonio; Feb 5, 2019 at 01:17 PM.
Reply
Old Feb 5, 2019 | 02:41 PM
  #36  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Good!
Reply
Old Feb 5, 2019 | 03:32 PM
  #37  
Billenglish's Avatar
Billenglish
Instructor
 
Joined: Nov 2018
Posts: 110
Likes: 15
From: Oregon, Ohio
Default

Originally Posted by HeadsU.P.
Good!
Happy endings make me want to cry. 😅
Reply




All times are GMT -4. The time now is 08:35 AM.

story-0
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-1
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-2
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
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE