Coolant sealant tabs?
12-20-2007, 01:37 PM
#1
Burning Brakes
Thread Starter
Coolant sealant tabs?
In my factory service manual, it says to install some sealant tabs in the surge tank after a coolant change (LT1 only). Can anyone tell me what they are for? I assumed corrosion prevention but I don't want that stuff running around my cooling system for no reason. I have no need for "stop leak" gunk.
Matt
Matt
12-20-2007, 02:31 PM
#2
Heel & Toe
Good question! When I got my cylinder heads back from Advanced Induction, they included a packet of those tabs. They remind me of those dissolving fish feeder pellets for aquariums.
I'm putting everything back together very carefully and clean, so I also don't want random sh*t floating around in the coolant! I'll have to give Ron at AI a call to see what's up with these things...
I'm putting everything back together very carefully and clean, so I also don't want random sh*t floating around in the coolant! I'll have to give Ron at AI a call to see what's up with these things...
12-20-2007, 02:35 PM
#3
Race Director
Dont use them...keep your coolant mix balanced and you should have no corrosion problems.Them pellets look like they could plug up a heater core or a rad somewhat.
12-20-2007, 02:58 PM
#5
Burning Brakes
Member Since: Aug 2000
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Their purpose was to address porosity issues with the aluminum head castings. I don't think they are recommended anymore, but I don't know if it's an official GM bulletin or internet myth.
Interesting thing is that if you read the ingredients it sounds like a good curry recipe.
Interesting thing is that if you read the ingredients it sounds like a good curry recipe.
"were" is the key word.
12-20-2007, 04:38 PM
#7
Thoroughly chapped
Member Since: Oct 2006
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
They were originally made for teh Cadillac 4.1's because of teh aluminum head/cast iron block problems of
sealing because of poorly designed gaskets and inferior castings. Teh sealing tabs were, and are very cheap
insurance. Personally, while I sell them everyday, I would never use them....a little Water Wetter, and regular
green coolant, and everything is good!
sealing because of poorly designed gaskets and inferior castings. Teh sealing tabs were, and are very cheap
insurance. Personally, while I sell them everyday, I would never use them....a little Water Wetter, and regular
green coolant, and everything is good!
12-20-2007, 06:56 PM
#8
Team Owner
Their purpose was to address porosity issues with the aluminum head castings. I don't think they are recommended anymore, but I don't know if it's an official GM bulletin or internet myth.
Interesting thing is that if you read the ingredients it sounds like a good curry recipe.
Interesting thing is that if you read the ingredients it sounds like a good curry recipe.
