intake install
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Junior Member
Joined: Feb 2006
Posts: 87
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From: corpus christi texas
Car: 91 firebird
Engine: 350 vortec heads
Transmission: t5
Axle/Gears: 3.08 open diff
intake install
can i fire up my motor right after i install my intake or should i let the rtv cure.ill just fire it for a few minutes.probably wont even warm it up.
Member
Joined: Apr 2001
Posts: 341
Likes: 0
From: Kingston, NH
Car: 2004 Wrangler Rubicon
Engine: 4.0
Transmission: NV3550
Axle/Gears: Dana 44s with 4.10 and air lockers
I've never let RTV cure before exposing it to fluids. In fact, every day when I do tranny or diff services the RTV has a whopping minute to cure until there is some sort of fluid behind it. No leaks yet.
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
The problem with the intake is the pressure, not necessarily the fluids. Most (probably all) motors have some "blowby" - this crankcase pressure will blow out the seal if the RTV hasn't dried and cured - I just finished my 4th intake install in as many months (kept having oil leaks), all because I wasn't letting the RTV cure enough.
This last time, I let it dry for 2 hours BEFORE I installed the intake. THEN, I let it set up overnight BEFORE I started the motor at all. That sucker finally sealed! BTW - I didn't use the stupid rubber china wall gaskets either.
I also heard to do like Stekman said, and let it dry BEFORE installing the inatke at all - but I also was told if you do this, to also add more RTV when installing intake, and tighten it down, THEN again wait overnight before starting car - a 2 day process basically.
LET IT DRY!
This last time, I let it dry for 2 hours BEFORE I installed the intake. THEN, I let it set up overnight BEFORE I started the motor at all. That sucker finally sealed! BTW - I didn't use the stupid rubber china wall gaskets either.
I also heard to do like Stekman said, and let it dry BEFORE installing the inatke at all - but I also was told if you do this, to also add more RTV when installing intake, and tighten it down, THEN again wait overnight before starting car - a 2 day process basically.
LET IT DRY!
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