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Old 07-30-2009, 05:57 PM
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head stud leaking

I have a bbc and one of the head studs is got a little bit of water coming out of it. Its the very last one on the drivers side. Its not under the valve cover its the one right below the valve cover but above the spark plug. My question is can I just take it out reseal it and put it back in or do I need to drain the radiator to do this???

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Old 07-30-2009, 06:06 PM
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My experience has been no luck sealing it without draining the cooling system first. You may want to remove the cooling plug on that side of the block as well. With just the radiator drained, coolant will still come out of the hole when you pull the stud.
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Old 07-30-2009, 06:39 PM
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Quote:
Originally Posted by carsavvycook
My experience has been no luck sealing it without draining the cooling system first. You may want to remove the cooling plug on that side of the block as well. With just the radiator drained, coolant will still come out of the hole when you pull the stud.
blow some air in hole and it will lower more water out the radiator drain , do it a few times
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Old 07-30-2009, 09:03 PM
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ok great thx. whats the best thing to use. I have always used the white tape but didn't know if there was anything else out there that might work
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Old 07-30-2009, 09:14 PM
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I prefer Permatex Aviation Sealer, a little on the lower threads, and under the bolt head, or bottom of the nut. I have never had a leak, or head gasket failure from uneven torque.
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Old 07-30-2009, 10:15 PM
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Quote:
Originally Posted by inquiring_mind2
ok great thx. whats the best thing to use. I have always used the white tape but didn't know if there was anything else out there that might work
never tape , it's for pipe treads
blue stuff in pluming department of Lowe's , Teflon with a touch of silicone in it .
or permatex like carsaavycook said .
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Old 07-30-2009, 10:41 PM
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In many ways I can agree with a sealant that has a high concentration of teflon in it for sealing factors, I myself would not use any type of silicone due to the expansion and contraction in a motor, over time silicone along with tape will break down and become small particles that will become lodged in your cooling system, then your facing another problem. In my experience if your running high rpm's and any type of heat out of this engine for a long period of time ( such as mudbogging) you need a heavy body high teflon sealant (such as CR5 made by permatex or CRC) to allow for these extreme conditions. To due just that one stud will probably be a bandaid for now, this will probably lead to further problems later and in my experience will become certain doom if neglected.
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Old 07-30-2009, 10:49 PM
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Quote:
Originally Posted by burnt olds
never tape , it's for pipe treads
blue stuff in pluming department of Lowe's , Teflon with a touch of silicone in it .
or permatex like carsaavycook said .
it's not pure silicone stinger 460 , mostly Teflon .
i'll put it against all sealers , and you brush it on .not gob it on .
put on steam lines in industrial plants world wide , and they contract and expand more than any engine .plus it don't melt out .
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