LT1 Cooling System Sealer Pellets
Instructor
Joined: Sep 2000
Posts: 135
Likes: 0
From: Slidell Louisiana
Re: LT1 Cooling System Sealer Pellets (steve bavaro)
Do we really need these pellets? After changing my waterpump, I flushed the system and went back with a 60 (distilled water)/40 (antifreeze) mixture. What does the pellets do?
Thread Starter
Intermediate
Joined: Jun 2000
Posts: 28
Likes: 0
From: monaca pa
Re: LT1 Cooling System Sealer Pellets (champ)
That's what I am trying to figure out. The service manual calls for them, and I just wanted to see what all the boys are doing. I believe they are to take care of any small leaks before they become big ones. I do not believe they have any lubricting purposes at all.
Melting Slicks
Joined: Apr 2000
Posts: 3,198
Likes: 2
From: Northern CA
Re: LT1 Cooling System Sealer Pellets (steve bavaro)
I think they are purely to help stop small leaks. I have asked two Vette mechanics, one who I frequently race with, and both have told me to use the tablets or else small leaks might occur.
Advanced
Joined: Sep 2001
Posts: 55
Likes: 0
From: Pflugerville TX
Re: LT1 Cooling System Sealer Pellets (steve bavaro)
They are for sealing any small leaks. They are almost edible! Ingredients are something like tumeric, ground walnut shells, soda! They are reminiscent of the old mechanics trick of putting ground pepper in radiators to stop leaks.
Dennis
GS*598 :cheers:
Dennis
GS*598 :cheers:
Racer
Joined: Jan 2001
Posts: 425
Likes: 0
From: Frederick MD
Re: LT1 Cooling System Sealer Pellets (steve bavaro)
I thought it also had something to do with protecting the aluminum, being a porous metal, the pellets help to seal the surface and keep the dexcool from eroding it.
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Race Director
Joined: Apr 1999
Posts: 13,002
Likes: 4
From: Paint Hill NC
Re: LT1 Cooling System Sealer Pellets (steve bavaro)
Vince is correct. My mother in law has a Caddy with a what is known as a porous casting. The anti-freeze actually weeps through the side of the block near the head. It the the weirdest thing I have ever seen. I use the pellets in it but it leaks anyway. It probably leaks maybe 6oz/month or less, almost nothing. I am sure the pellets also are supposed to help seal head gaskets, radiators etc. The factory service manual for the caddy addresses the porous casting.
Harold
Harold
