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 Post subject: COMETIC GASKETS
 Post Posted: Sat Oct 27, 2012 7:35 am 
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Do I need to have block and head work to use them,at 1 time I thought Iheard this mentioned.If so what needs to be done?

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JEFF WINTERS
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 Post subject: Re: COMETIC GASKETS
 Post Posted: Sat Oct 27, 2012 7:45 am 
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Thinking there needs to be the correct finish on the deck..

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 Post subject: Re: COMETIC GASKETS
 Post Posted: Sat Oct 27, 2012 9:58 am 
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What Barry said. I was told the correct finish on the deck and block was required and if I'm not mistaken Ken had a little trouble getting his 1st set to seal up. Tim also told me he likes to put a little temperature in the engine before putting any water in it. Apparently that helps seal them up. You have to be careful with the way you handle them. All the surfaces need to be real clean and dry and you need to keep your greasy fingers off of them.

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 Post subject: Re: COMETIC GASKETS
 Post Posted: Sat Oct 27, 2012 11:08 am 
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Actually I think Ken's problem was that the 3/8" studs in his 18* SBC ARP stud kit were just a touch too long and the threads on those nuts were bottomed out. Those Cometic gaskets did finally seal up though as I put some black pepper in the cooling system and that seemed to stop them from seeping.

When I freshened that engine winter before last I found the stud problem and I put extra washers on those 3/8" studs.

The Mr Gasket MLS gaskets I used this time didn't leak a drop that I know of and this block was never specifically machined for MLS gaskets as it was 9.000 decked by Kowalsky Racing Engines after I bought it back in the mid 1990s.

Your mileage may vary though and if you've got that engine down, now would be the time to have this done. ;-)

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 Post subject: Re: COMETIC GASKETS
 Post Posted: Sat Oct 27, 2012 11:10 am 
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X2 for what has been posted. If you are just removing Fel Pro HP gaskets and trying to install Cometic you will have problems. At a minimum the heads need to be surfaced with the correct finish. Those Fel Pro gaskets leave an indention where the "O"Ring/sealing ring contacts the head. That indention has got to go for proper sealing of Cometic or any shim type gasket. It is not so bad for Steel, but Alum indents real bad with Fel Pro.

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 Post subject: Re: COMETIC GASKETS
 Post Posted: Mon Oct 29, 2012 12:25 pm 
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http://76.164.129.182/PROMEDIA/FSC_1112 ... l#?page=18 This will cover it.

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 Post subject: Re: COMETIC GASKETS
 Post Posted: Mon Oct 29, 2012 1:50 pm 
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Yeah that was the second run on a new carb out of the box. Jake was eating a samich. LOL Mov was .017. It was hot and humid at 11am. :-({|= :-({|= =;

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6.7772 @ 101.51 1/8th 10.747 @ 122.24 1/4

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