LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Is seafoam good for lt1's

Thread Tools
 
Search this Thread
 
Old 06-21-2010, 04:46 AM
  #1  
On The Tree
Thread Starter
 
RED PUNISHER Z's Avatar
 
Join Date: Feb 2009
Location: Texas
Posts: 163
Likes: 0
Received 0 Likes on 0 Posts
Default Is seafoam good for lt1's

is seafoam good to clean out the motor...and what do you pour it in to... i have never used it before so i just wanted to know if it good or not thanks

Last edited by RED PUNISHER Z; 06-21-2010 at 06:51 AM.
Old 06-21-2010, 04:54 AM
  #2  
TECH Resident
iTrader: (7)
 
letsrun97z's Avatar
 
Join Date: Feb 2007
Location: Visalia, Ca
Posts: 993
Likes: 0
Received 0 Likes on 0 Posts

Default

I've used it in mine didn't make a difference I only run 91. it smoked a little and this was when I had about 105k on it. I did it in my 06 envoy with 45k and it smoked out my block when I took off.. We only run the cheap shell 86-87 lmao I only use 91 so I forgot what the other two octane's are
Old 06-21-2010, 09:55 AM
  #3  
TECH Fanatic
iTrader: (14)
 
suicidal racing's Avatar
 
Join Date: Sep 2007
Location: Mass
Posts: 1,074
Received 8 Likes on 5 Posts

Default

theirs a complete how to wrote up on here..just do a search..i need to do this to my daily pos saturn
Old 06-21-2010, 10:01 AM
  #4  
TECH Addict
iTrader: (4)
 
meine96ws6's Avatar
 
Join Date: Feb 2009
Location: Savannah, GA
Posts: 1,998
Likes: 0
Received 0 Likes on 0 Posts
Default

i was reading to use mopar combustion cleaner instead..
Old 06-21-2010, 10:26 AM
  #5  
TECH Fanatic
iTrader: (4)
 
Gojira94's Avatar
 
Join Date: Dec 2009
Location: Clayton, NC
Posts: 1,198
Received 36 Likes on 32 Posts

Default

Saw this one a long time ago on LT1engine.com:

http://www.lt1engine.com/tech/how-to...arbon-buildup/

Long-winded but explains what he's doing, in what order, and why. FWIW/YMMV
Old 06-21-2010, 10:28 AM
  #6  
On The Tree
Thread Starter
 
RED PUNISHER Z's Avatar
 
Join Date: Feb 2009
Location: Texas
Posts: 163
Likes: 0
Received 0 Likes on 0 Posts
Default

thanks for the help
Old 06-21-2010, 10:50 AM
  #7  
TECH Regular
iTrader: (4)
 
TheDon619's Avatar
 
Join Date: Jun 2008
Posts: 402
Likes: 0
Received 0 Likes on 0 Posts
Default

one full can in the vaccum line from the booster to the manifold, on full can in the gas tank and one full can in the crank case no more than 100 miles away from an oil change. i do this about even 12k miles. before i rebuilt the motor i did it often and when i tore it down it looked brand new.
Old 06-21-2010, 11:54 AM
  #8  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 81 Likes on 72 Posts

Default

Seafoam is the devil. Dont use that ****.
Old 06-21-2010, 11:57 AM
  #9  
TECH Fanatic
iTrader: (4)
 
Gojira94's Avatar
 
Join Date: Dec 2009
Location: Clayton, NC
Posts: 1,198
Received 36 Likes on 32 Posts

Default

Originally Posted by 01ssreda4
Seafoam is the devil. Dont use that ****.
Please explain. Not being a dick, just want to know what's bad about it.
Old 06-21-2010, 12:23 PM
  #10  
TECH Enthusiast
 
brucer's Avatar
 
Join Date: Dec 2009
Posts: 529
Likes: 0
Received 0 Likes on 0 Posts
Default

i have a 94z28 i bought it with a blown engine, i found a replacement engine that had been sitting for a while..
after i got the replacement engine installed i seafoamed it, basicly didnt know what oil the previous engine owner used and i wanted to clean it somewhat internally before i put in synthetic.. i've used a pint of diesel fuel to do the same thing on older engines.
Old 06-21-2010, 12:35 PM
  #11  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 81 Likes on 72 Posts

Default

Originally Posted by Gojira94
Please explain. Not being a dick, just want to know what's bad about it.
I have seafoamed lots of cars. And stopped doing so after a couple Ks after the cleaning. I have found it fouls plugs shortly after treatment and a lot of cars I have done have started having slightly irractic idles when cold started. I wont seafoam a car ever again. Except maybe run it through the gas tank.
Old 06-21-2010, 03:06 PM
  #12  
TECH Junkie
iTrader: (15)
 
MasterTomos's Avatar
 
Join Date: Oct 2008
Location: Northeast Iowa
Posts: 3,508
Likes: 0
Received 3 Likes on 3 Posts

Default

everyone has heard of the "miracle" engine repair stories from seafoam, but I've never seen anything too amazing...chances are, if you're having engine problems, the solution to the problem usually doesn't come in a bottle...some of my buddys put it in their gas tanks over winter tho...
Old 06-21-2010, 06:28 PM
  #13  
TECH Fanatic
iTrader: (4)
 
Gojira94's Avatar
 
Join Date: Dec 2009
Location: Clayton, NC
Posts: 1,198
Received 36 Likes on 32 Posts

Default

Originally Posted by 01ssreda4
I have seafoamed lots of cars. And stopped doing so after a couple Ks after the cleaning. I have found it fouls plugs shortly after treatment and a lot of cars I have done have started having slightly irractic idles when cold started. I wont seafoam a car ever again. Except maybe run it through the gas tank.
Understood. I'm a 'take it apart and clean it by hand' kind of guy. Hell, I pulled the seats out of my 03 Accord last week so I could vacuum properly
Old 06-21-2010, 06:47 PM
  #14  
11 Second Club
iTrader: (17)
 
AChotrod's Avatar
 
Join Date: Jul 2008
Location: Chicago area
Posts: 9,896
Likes: 0
Received 1 Like on 1 Post
Default

I still cant get past the name Sea foam for a car, so Ive never used it and never saw positive results from people who did.
Old 06-21-2010, 08:42 PM
  #15  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,060
Received 541 Likes on 391 Posts

Default

Only reason to ever use sea foam is if there is a carbon knock in the engine or if the engine is suffering symptoms of carbon buildup.
Old 06-21-2010, 09:03 PM
  #16  
11 Second Club
iTrader: (6)
 
speed_demon24's Avatar
 
Join Date: Dec 2001
Location: Ocala, FL
Posts: 4,609
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by SS RRR
Only reason to ever use sea foam is if there is a carbon knock in the engine or if the engine is suffering symptoms of carbon buildup.
That shouldn't be a problem with a properly tuned car as long as you go WOT often enough.
Old 06-21-2010, 09:13 PM
  #17  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,060
Received 541 Likes on 391 Posts

Default

Right. It can be depending on how it's driven. If an individual drives like old people ****, never taking it past a certain rpm, driving short distances or predominately in stop/go traffic then it can be a prollem.
Old 06-21-2010, 09:15 PM
  #18  
11 Second Club
iTrader: (6)
 
speed_demon24's Avatar
 
Join Date: Dec 2001
Location: Ocala, FL
Posts: 4,609
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by SS RRR
Right. It can be depending on how it's driven. If an individual drives like old people ****, never taking it past a certain rpm, driving short distances or predominately in stop/go traffic then it can be a prollem.
Post up the pics of your steam cleaned pistons.
Old 06-21-2010, 09:28 PM
  #19  
TECH Enthusiast
iTrader: (8)
 
dubga's Avatar
 
Join Date: Apr 2009
Location: Thomasville, GA
Posts: 582
Likes: 0
Received 1 Like on 1 Post
Default

I pulled the valve covers on my car about a month ago for the first time since I bought it. A lot of gunk built up under there. I put the half-can of seafoam in the oil and drove it for 100 miles non-stop. Changed the oil and did find lots of little b-b sized chunks of sludge, but pulled the valve covers and couldn't tell much difference there. Car runs great before and after the sea foam, just using the stuff to see if it would clean out that sludge left by the previous owner. When I bought the car, the oil was like syrup when it drained out.
Old 06-21-2010, 09:57 PM
  #20  
11 Second Club
iTrader: (6)
 
speed_demon24's Avatar
 
Join Date: Dec 2001
Location: Ocala, FL
Posts: 4,609
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by dubga
I pulled the valve covers on my car about a month ago for the first time since I bought it. A lot of gunk built up under there. I put the half-can of seafoam in the oil and drove it for 100 miles non-stop. Changed the oil and did find lots of little b-b sized chunks of sludge, but pulled the valve covers and couldn't tell much difference there. Car runs great before and after the sea foam, just using the stuff to see if it would clean out that sludge left by the previous owner. When I bought the car, the oil was like syrup when it drained out.
If you use quality oil the engine internals will remain spotless and sludge free for the engines life.


Quick Reply: Is seafoam good for lt1's



All times are GMT -5. The time now is 10:37 AM.