Using a bolt to close off egt port. Will it crack the manifold?
08-26-2005, 06:22 PM
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Using a bolt to close off egt port. Will it crack the manifold?
I was wondering if it's safe to use a bolt in place of an egt probe to close off the port. I have a manifold that was drilled and tapped for an egt gauge but I don't plan to run one.
If I put a bolt in place of that, will to manifold be more prone to cracking because the bolt and the manifold will expand at different rates? This is on a drag mani.
If I put a bolt in place of that, will to manifold be more prone to cracking because the bolt and the manifold will expand at different rates? This is on a drag mani.
08-26-2005, 06:40 PM
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Re: Using a bolt to close off egt port. Will it crack the manifold? (Stewie)
i used a 1/8 brass plug to close up the hole on my last manifold. it didnt crack or leak on me
08-27-2005, 09:59 PM
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Re: Using a bolt to close off egt port. Will it crack the manifold? (Stewie)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stewie »</TD></TR><TR><TD CLASS="quote">thanks!
Where can I buy these plugs? Would homedepot have them?</TD></TR></TABLE>
there or an ace hardware
Where can I buy these plugs? Would homedepot have them?</TD></TR></TABLE>
there or an ace hardware
08-28-2005, 03:38 AM
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Re: Using a bolt to close off egt port. Will it crack the manifold? (Stewie)
Usual thread type is 1/8 NPT for an EGT gauge. They should have brass plugs at Home Depot. Ace Hardware sometimes has steel plugs which would be better.
08-28-2005, 06:52 AM
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Re: Using a bolt to close off egt port. Will it crack the manifold? (Def)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Def »</TD></TR><TR><TD CLASS="quote">Usual thread type is 1/8 NPT for an EGT gauge. They should have brass plugs at Home Depot. Ace Hardware sometimes has steel plugs which would be better.</TD></TR></TABLE>
Why do you say that steel would be better? I was thinking that brass would be better because it's a softer metal and it won't put alot of pressure on the surrounding manifold surface when the plug expands do to the heat. I also heard that brass is self sealing.
Why do you say that steel would be better? I was thinking that brass would be better because it's a softer metal and it won't put alot of pressure on the surrounding manifold surface when the plug expands do to the heat. I also heard that brass is self sealing.
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