[Supras] Sealant for head gasket?

[Dave Henry]

Definitely install the HG dry, clean both the head and the block with 
contact cleaner before installation also, so you get your oily rookie 
fingerprints off of it.  :-)

What head bolts are you using?

DaveH

----- Original Message ----- 
From: "Bill" <bwright1818 at comcast.net>
To: <supras at supras.com>
Sent: Friday, November 02, 2007 4:43 PM
Subject: [Supras] Sealant for head gasket?


> Hey guys,
>
> Well, the Supra rookie (trying for Rookie of the Year, though...) has his 
> Cometic 2mm head gasket in hand. They recommend a dry installation. To me, 
> this seems like begging for a leak, especially with the different rates of 
> thermal expansion going on.  Any thoughts? Also, I know everyone is 
> torquing them higher than spec. I'm okay with that, to a point; however, 
> when I look at the thread pitch on the head bolts, as opposed to, say, a 
> 350 Chevy head bolt, I have to wonder if the spec is not, at least CLOSE, 
> to okay. Seems like winding up to 75-85 foot pounds on that fine a thread 
> would over-stress the bolt, threads or head, as it would be creating a lot 
> more vertical force than on a similarly torqued American head bolt with 
> more coarse threads. After all, bolts are just circular wedges. I know 
> there are engineer types out there. Whadda ya think, over? Thanks...
>
> Bill 90 N/A
>
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