Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Gunk removal?

Thread Tools
 
Search this Thread
 
Old Aug 25, 2012 | 03:33 AM
  #1  
DisasterpeaceWS6's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Apr 2010
Posts: 187
Likes: 0
From: OK / Hawaii
Default Gunk removal?

What's most efficiant way to remove the gunk and grime from the block area where the heads mouth up? Also need to clean the top of the pistons. Any suggestions?
Reply
Old Aug 25, 2012 | 07:32 AM
  #2  
crainholio's Avatar
TECH Addict
iTrader: (2)
 
Joined: Aug 2003
Posts: 2,977
Likes: 3
Default

Originally Posted by DisasterpeaceWS6
What's most efficiant way to remove the gunk and grime from the block area where the heads mouth up?
Never seen a cylinder head mouth up, post pics.
Reply
Old Aug 25, 2012 | 10:38 AM
  #3  
SS10Tech's Avatar
Launching!
 
Joined: May 2012
Posts: 209
Likes: 1
From: NC
Default

Engine degreaser or brake cleaner for the external of the block and use water to wash it off - i always follow suite with a rag to remove any moisture around gasket areas that can be reached. If the block has been enamel coated/painted you cannot use brake cleaner as it will take the engine enamel coating right off.

Carbon buildup i normally use carb cleaner, gasoline, or seafoam on a rag. Wipe down with oil - turn the motor over a few times, and do the next. Change the oil after you're done.
Reply
Old Aug 25, 2012 | 01:59 PM
  #4  
DisasterpeaceWS6's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Apr 2010
Posts: 187
Likes: 0
From: OK / Hawaii
Default

Originally Posted by crainholio
Never seen a cylinder head mouth up, post pics.
Mount* Sorry been up all night removing engine components...
Reply
Old Aug 25, 2012 | 02:02 PM
  #5  
DisasterpeaceWS6's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Apr 2010
Posts: 187
Likes: 0
From: OK / Hawaii
Default

Originally Posted by SS10Tech
Engine degreaser or brake cleaner for the external of the block and use water to wash it off - i always follow suite with a rag to remove any moisture around gasket areas that can be reached. If the block has been enamel coated/painted you cannot use brake cleaner as it will take the engine enamel coating right off.

Carbon buildup i normally use carb cleaner, gasoline, or seafoam on a rag. Wipe down with oil - turn the motor over a few times, and do the next. Change the oil after you're done.
Alright thanks. Whats about using brake cleaner and a air grinder with plastic abrassive pads? Will that hurt the block?
Reply
Old Aug 25, 2012 | 02:14 PM
  #6  
SS10Tech's Avatar
Launching!
 
Joined: May 2012
Posts: 209
Likes: 1
From: NC
Default

Why would you need an air grinder and abrasive pads? Brake cleaner and a stiff tooth brush, a bag of rags on sale at the local hardware store, insert your favorite whistle wetting beverage, and alot of elbow grease is all you need. You may need to clean/rinse/wipe/repeat as necessary as well. Let it soak a bit if it is that hard to get off. If you still want to use a tool do not use air grinders as they are too fast of an RPM - use one of those battery powered electric drills for more control. plastic or brass is good but not steel brushes - you cant control where the bristles go when they break.
Reply
Old Aug 25, 2012 | 02:35 PM
  #7  
wildcamaro's Avatar
TECH Addict
iTrader: (15)
 
Joined: Nov 2009
Posts: 2,501
Likes: 4
From: Western PA
Default

Those 3m plastic discs on a die grinder work magic on the pistons...yellow is heavy grit and white is the finishing grit...these also work wonders for cleaning the cylinder head mating surface on the block...you can use brake cleaner it just takes longer
Reply
Old Aug 25, 2012 | 05:24 PM
  #8  
SS10Tech's Avatar
Launching!
 
Joined: May 2012
Posts: 209
Likes: 1
From: NC
Default

Originally Posted by wildcamaro
Those 3m plastic discs on a die grinder work magic on the pistons...yellow is heavy grit and white is the finishing grit...these also work wonders for cleaning the cylinder head mating surface on the block...you can use brake cleaner it just takes longer
Do you know what the grit counts are? I did a bit of looking and found nothing. I would think any heavy grit followed by polishing would cause un-even finish on the piston which could effect squish. Depending on the grit counts though it would not cause a problem.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Aug 25, 2012 | 06:10 PM
  #9  
wildcamaro's Avatar
TECH Addict
iTrader: (15)
 
Joined: Nov 2009
Posts: 2,501
Likes: 4
From: Western PA
Default

The discs are plastic so you can grind all day and they won't mess up aluminum...green discs are for steel only, but yellow and white are good, I usually use white just to be cautious...they aren't like the Brillo material they are plastic disc with fingers I believe they are called rolox discs. I got mine at paint and body store
Reply
Old Aug 25, 2012 | 09:09 PM
  #10  
time3777's Avatar
Staging Lane
 
Joined: Nov 2010
Posts: 53
Likes: 0
From: Seymour,Indiana
Default

Scotch brite and break cleaner works miracles.
Reply
Old Aug 25, 2012 | 09:56 PM
  #11  
DisasterpeaceWS6's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Apr 2010
Posts: 187
Likes: 0
From: OK / Hawaii
Default

Originally Posted by wildcamaro
The discs are plastic so you can grind all day and they won't mess up aluminum...green discs are for steel only, but yellow and white are good, I usually use white just to be cautious...they aren't like the Brillo material they are plastic disc with fingers I believe they are called rolox discs. I got mine at paint and body store
I just sprayed some brake cleaner on the gasket face and the pistons and used a green pltic disc. Came right off and no dmage to the block or the pistons.
Reply
Old Aug 25, 2012 | 09:58 PM
  #12  
DisasterpeaceWS6's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Apr 2010
Posts: 187
Likes: 0
From: OK / Hawaii
Default

Originally Posted by SS10Tech
Why would you need an air grinder and abrasive pads? Brake cleaner and a stiff tooth brush, a bag of rags on sale at the local hardware store, insert your favorite whistle wetting beverage, and alot of elbow grease is all you need. You may need to clean/rinse/wipe/repeat as necessary as well. Let it soak a bit if it is that hard to get off. If you still want to use a tool do not use air grinders as they are too fast of an RPM - use one of those battery powered electric drills for more control. plastic or brass is good but not steel brushes - you cant control where the bristles go when they break.
Because I am paying per hour to use the tools/lift/shop so I need to finish asap. They only open 8 hours a day. Not like my garage where its 24/7
Reply
Old Aug 25, 2012 | 10:03 PM
  #13  
metalmilitia606's Avatar
TECH Resident
iTrader: (8)
 
Joined: Sep 2009
Posts: 861
Likes: 2
From: Dayton Ohio
Default

409 is a really good cleaner and it's cheap. I use it on motorcycle frames all the time.
Reply




All times are GMT -5. The time now is 10:34 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE