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Author
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Topic: Leaking core plugs
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Clevo377
Gearhead Posts: 255
From: Blackburn, Victoria, Australia
Registered: Nov 2000
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posted 01-11-2002 08:51 PM
   
One of my heads has two of the screw in core plugs leaking. What is the best way to seal them up? (without taking the head off if possible).Thanks
Paul
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Dr. Who
Gearhead Posts: 164
From: Redwood City, Ca.
Registered: Sep 2001
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posted 01-11-2002 11:19 PM
Many of the sealers like Alumaseal will stick the thermostat but I've had great success with GM seal tabs stopping leaks and not causing other problems, they come on a card and there's about 4 or 6 in the pack. 2 of em do the job long term most times. ------------------
Moe! Larry! Cheese! Curly Howard
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Clevo377
Gearhead Posts: 255
From: Blackburn, Victoria, Australia
Registered: Nov 2000
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posted 01-14-2002 06:04 AM
Spoke to the guys at the head reco shop. They said to use some Loctite 290. It Penetrates threads by capillary action (wicks).I'll give it a go. (you can also use it on carb adjusting screws) Paul
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Moneymaker
Administrator Posts: 11493
From: Lyons, IL, USA
Registered: May 99
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posted 01-15-2002 12:43 PM
On the plugs themselves, nothing beats teflon tape. NOTHING! 
If you need to introduce an agent into the cooling system to stop the leak, the best product I have ever seen is KW Copper Coat Block Seal.  ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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cracing
Journeyman Posts: 8
From: Saltillo Miss. USA
Registered: Jan 2002
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posted 01-15-2002 01:45 PM
Do not use K&W with antifreeze, it will clog everything. I didnt read the instructions ONCE. That is the block sealer not the rad sealer.
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