Gasket sealers do's and donts.

Reply

  #1  
Old 01-19-08, 10:54 PM
Member
Thread Starter
Join Date: Aug 2007
Posts: 75
Gasket sealers do's and donts.

Ok i might pull the throttle body off my toyota celica. The reason being is the IACV more than likely needs cleaning and or replaced. The 1st question is do i use a gasket sealer when installing the throttle body and the IACV? I know the throttle bodys gasket is diff and the IACV uses some sort of rubber gasket. 2nd question is the use of a torque wrench. Is it absoltely neccasary to use? Thanks for all info.
 
Sponsored Links
  #2  
Old 01-20-08, 04:45 AM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,571
Skip the sealants; the gasket does the work. If you need to hold a gasket in place for assembly a slight amount of an adhesive can help (my choice is 3M trim contact cement), but forget troweling on the RTV.

Absolutely necessary? No. Desireable when possible? Yes. I just had to fix a bad injector yesterday on a project car ('96 Corsica, 3.1L; picture here: http://forum.doityourself.com/showthread.php?t=331955 ) that involved removing the intake plenum and some attaching parts. Didn't pull out my torque wrench and I'm not concerned. In theory every single nut and bolt has a torque value; in practice many that are not torque-critical are installed without a torque wrench. When you start talking things like cylinder heads and such, now we're talking critical.
 
  #3  
Old 01-22-08, 10:22 PM
Member
Thread Starter
Join Date: Aug 2007
Posts: 75
I forgot to mention that the IACV has a port for coolant to flow through. Do i need to use a sealant on it, the throttle body side or the valve or both?
 
  #4  
Old 01-23-08, 05:40 AM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,571
No, the gasket does the work. Adding a layer of sealant onto a gasket can actually lead to leakage due to not getting proper compression of the gasket.
 
  #5  
Old 01-23-08, 11:29 PM
Member
Thread Starter
Join Date: Aug 2007
Posts: 75
Thanks for all the help. Thats all i need to know.
 
  #6  
Old 01-24-08, 10:30 AM
Member
Join Date: Jun 2002
Location: Quincy, MA
Posts: 131
Talking

The screws holding the IAC to the body will be corroded.
Give 'em a blast of PB to loosen 'em or you'll have an interesting time if a head(s) shear off.
If the slots give way, go at 'em with a needle-nose vise-grip.
I replaced the phillips heads with SS hex heads - cheap, and easy to screw in.
I didn't torque 'em but snugged 'em up firmly.
 
  #7  
Old 01-24-08, 05:20 PM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,571
Hey, this is a gasket thread; no fair turning it into a hardware thread!

Good advice.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes