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Author
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Topic: Intake gasket sealing
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Dad Vishus
Gearhead Posts: 642
From: Moscow, Iowa, USA
Registered: Dec 2001
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posted 02-13-2004 08:53 PM
   
When I took the intake off my motor last Fall I noticed an intake runner that was all black in the head. The stuff is like thick tar and has no apparent smell.I'm assuming this is oil being sucked into the intake at the gasket surface. The intake is a little beat up on that gasket surface. It is the back hole on one side, BTW. I think I'll try putting extra silicone around that port. My question is, is one type of silicone better for resisting alchohol than the others? I've been advised to use black, but I'm still not sure.  Thanks in advance. ------------------
63 Falcon 377 Cleveland stroker Flying Toilet alchohol injection. 6.19 @ 110 MPH 1/8 mile
2002 Ranger FX4 daily driver
2000 F350 PSD Crew cab dually - Like commuting in a B52!!
98 US Cargo Phantom II 28'
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clevelandstyle
Gearhead Posts: 800
From: Connersville, IN
Registered: Jul 2001
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posted 02-13-2004 10:07 PM
I don't run alky, but I like the ultra black Permatex. I don't even use intake gaskets anymore. Just a thin layer of black and let it setup. I resently had a seminar put on by a Loctite rep. He showed some examples of some silicons that eat aluminum. Specifically, the silicon sealers that has the strong, vinigary smell. Mostly the blue, clear and some black silicons do it. Have you ever seen an intake mounting flange or aluminum water pump that is pitted or corroded? The silicon is what causes most of this. That's when I switched to the Ultra Black. It doesn't corrode aluminum. I can't really help on the alky issue. ------------------
Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 351C 4V
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Moneymaker
Administrator Posts: 21725
From: Lyons, IL, USA
Registered: May 99
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posted 02-13-2004 11:10 PM
Ultra black or grey. Both work equaly well.
Never, never, blue on anything but cast iron.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,& '04
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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cpmaverick
Gearhead Posts: 1602
From: Auburn, AL.
Registered: Jan 2000
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posted 02-14-2004 12:19 AM
Check out the Ford silicone you get in the caulk-type tube. It's made specificly for the Powerstrokes, but its some awesome stuff. It's expensive, but you get a lot of it. If you are doing a whole intake might be worth it. What else would you expect from the Blue Oval?  ------------------
-Charlie Ping
1970 Maverick Grabber
[email protected] with AC and overdrive.
http://www.maverickgrabber.com
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Dubz
Gearhead Posts: 1048
From: Manitoba Canada
Registered: Oct 2002
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posted 02-14-2004 06:38 PM
is all the permatex stuff allright on aluminum?
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Buster
Gearhead Posts: 1238
From: Orlando
Registered: May 2002
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posted 02-14-2004 07:18 PM
Ultra black or grey. Both work equaly well.Never, never, blue on anything. =)
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Fastymz
Moderator Posts: 14201
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-14-2004 07:20 PM
So are you guys saying, "Ultra black or grey. Both work equaly well.
Never, never, blue on anything."
But the blue is more pretty 
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SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics [This message has been edited by Fastymz (edited 02-14-2004).]
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Buster
Gearhead Posts: 1238
From: Orlando
Registered: May 2002
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posted 02-14-2004 08:19 PM
I only use Black.
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kid vishus
Gearhead Posts: 5248
From: middle of NC
Registered: Oct 2000
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posted 02-14-2004 08:21 PM
I use copper or red on everything.
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Fastymz
Moderator Posts: 14201
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-14-2004 09:00 PM
I just use the black GM sealant that my brother inlaw gets from the dealership he works at.Seems like good stuff, and it's free to me.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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Dad Vishus
Gearhead Posts: 642
From: Moscow, Iowa, USA
Registered: Dec 2001
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posted 02-14-2004 10:19 PM
Now that I think about it, I stuck the gaskets down with black but didn't put any on the top of the gaskets. I don't usually, but I will this time. I'm waiting for one more opinion, but several have said Ultra Black, and I have some, so that's probably what I'll try. Thanks 
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63 Falcon 377 Cleveland stroker Flying Toilet alchohol injection. 6.19 @ 110 MPH 1/8 mile
2002 Ranger FX4 daily driver
2000 F350 PSD Crew cab dually - Like commuting in a B52!!
98 US Cargo Phantom II 28'
IP: Logged |
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