LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Cylinder head banjo bolts

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Old Feb 3, 2005 | 11:03 PM
  #1  
$hawn's Avatar
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Cylinder head banjo bolts

Should I put any thread sealer or teflon tape on the threads to those banjo bolts on the back of the heads. Or should I not put anything on at all.
Old Feb 3, 2005 | 11:05 PM
  #2  
Smokn '94 Z's Avatar
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Thumbs up Re: Cylinder head banjo bolts

Yes you should. I put teflon sealant. All Good...
Old Feb 4, 2005 | 07:30 AM
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Re: Cylinder head banjo bolts

"Yes you should. I put teflon sealant. All Good..."

Hmmmm, that's interesting. I've never done that to mine. I have put a real light coat of RTV on the sealing washers before so they wouldn't be damaged when torqued down and reseal better. I'm sure it doesn't hurt to put the teflon on there though.
Old Feb 4, 2005 | 07:49 AM
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Re: Cylinder head banjo bolts

Originally Posted by sleepy_z28
"Yes you should. I put teflon sealant. All Good..."

Hmmmm, that's interesting. I've never done that to mine. I have put a real light coat of RTV on the sealing washers before so they wouldn't be damaged when torqued down and reseal better. I'm sure it doesn't hurt to put the teflon on there though.
Hmm...I didn't put any RTV on the seals and don't think they need it.

Looking at how it all works, the round seals do all the sealing, so thread sealant really has no purpose in this case, IMO.
Old Feb 4, 2005 | 07:54 AM
  #5  
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Re: Cylinder head banjo bolts

>The sealant shouldn't be required since there are 2 seals sandwiching the banjo bolt they are rubber and should keep the sealant from leaking through the threads , but would it hurt to put some sealant on the threads ? why not do it ?
Old Feb 4, 2005 | 07:58 AM
  #6  
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Re: Cylinder head banjo bolts

I would not put any kind of sealant on the threads. If you block the holes you might create hot spots in the heads. If you are reusing the washers, a little rtv will help.

Good Luck,

Daren
Old Feb 4, 2005 | 08:09 AM
  #7  
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Re: Cylinder head banjo bolts

Never used sealant on mine and they're doing great.
Old Feb 4, 2005 | 04:16 PM
  #8  
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Lightbulb Re: Cylinder head banjo bolts

I did it more as a lubricant than a sealant. I had a hard time getting mine apart when I did my heads and cam and had no access to neverseize at the time of re-assembly so I knew it won't hurt and can only help. I basically stripped the head of my banjo bolt trying to take it off so the teflon sealant should prevent that from happening to me again. But everyone is right, now that I think about it. Those are seals already with the bolts. Actually if you want to do it right they should be replaced with new ones.... Still don't think it hurts any to use it...
Old Feb 4, 2005 | 04:29 PM
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Re: Cylinder head banjo bolts

"I did it more as a lubricant than a sealant."

Exactly what I was getting at.
Old Feb 4, 2005 | 04:54 PM
  #10  
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Re: Cylinder head banjo bolts

What's a bango bolt and why?
Old Feb 4, 2005 | 06:19 PM
  #11  
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Re: Cylinder head banjo bolts

Originally Posted by BUBBA
What's a bango bolt and why?
A bango bolt is a banjo bolt that is mis-spelled. I am not sure why.
Old Feb 4, 2005 | 11:13 PM
  #12  
$hawn's Avatar
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Re: Cylinder head banjo bolts

I got all new bolts and seals, but yeah the seals should keep it sealed now that I think about it. Thanks guys.
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