Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   intake manifold gasket problems? (https://www.offshoreonly.com/forums/general-q/49410-intake-manifold-gasket-problems.html)

THRILLSEEKER 05-07-2003 07:08 AM

intake manifold gasket problems?
 
I cant keep the rubber front gasket from squeezing out when I torque down the bolts:confused: 30ft.lbs I tried several times and it just keeps pushing out. Has anyone else had this problem?

Scott 05-07-2003 07:22 AM

Throw it away and put a nice thick line of black RTV in its place. Then go a head and torque your manifold. No leaks!

fandango 05-07-2003 07:31 AM

Before you place any gaskets on the block or manifold, pre fit the intake on the block. Make sure you have sufficient space for the front and back gaskets. This will tell you if you have room for gaskets or just sylacone sp.

Ed

WALKIN THE DOG 05-07-2003 08:49 AM

THRILLSEEKER,

BLACK RTV IS THE ANSWER

paradigm shift 05-07-2003 10:46 AM


Originally posted by Scott
Throw it away and put a nice thick line of black RTV in its place. Then go a head and torque your manifold. No leaks!
I totally agree. Just make sure you don't need to run it that day. It will take it a couple days for silicone to set up properly. I usually dry assemble to see how thick a layer of silicone I need so as to not have to little or to much and have it come loose and end up in oil pickup screen. Until I went to the one piece pan gaskets I used to use silicone on the ends there also.

If you insist on using rubber end seals glue them in place on one side. I used to glue them to the block. DO NOT use silicone it will just act as a lubricant and they WILL slide out.

blue thunder 05-07-2003 04:13 PM

The trick to a bead of silicon working is cleaning both surfaces with laquaer thinner before applying. I use High temp RTV or Dow 732. Both work well.

BT :cool:

formula31 05-07-2003 04:25 PM

Ultrablack is it, and, yea, clean well and dont touch it till its completely cured.

blown1500 05-07-2003 05:50 PM

Clean and Ultra Black or equivalent. I have dynoed engines with this sealing method 30 minuits after assembly with no problem.
Do prefit the manifold and be SURE you have some clearance at the manifold ends for the silicone-if the manifold sits in contace with the block, you will have many problems!!!


All times are GMT -5. The time now is 09:57 AM.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.