I am having a problem in which coolant is getting into the oil. I have tracked this down to the intake manifold not sealing as it should. What sealant should i use? One of the parts places here have suggested Permatex Ultra Grey.
What do you guys rekon?
What sealant to use on intake manifold?
Started by
_Lamo_
, Mar 15 2010 12:30 PM
8 replies to this topic
#2
TerrA LX
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Posted 15 March 2010 - 12:48 PM
I assume you mean a V8 I would be looking for corrosion or check and see if the manifold sits flat and lines up with the heads if the block and heads have been machined at some stage, shoudn't have too much trouble sealing them with No.3 compound.
I would not be using silicone near the intake.
I would not be using silicone near the intake.
Edited by TerrA LX, 15 March 2010 - 12:49 PM.
#3
_Lamo_
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Posted 15 March 2010 - 04:12 PM
Sorry, yes it is a 253. There is definately corrosion happening on the manifold but not a huge amount. This head and manifold combination has always been on this engine and was not leaking before. The only thing I can think of is that when I had the intake blasted clean, it must have warped slightly but only in the rear passenger corner (that is the only place it leaks. I made sure they did not blast the bottom of it though.
#4
Rockoz
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Posted 15 March 2010 - 06:41 PM
Have used Permatex Blue before.
Best sealer I used though was Wurth Red.
Have even used Wurth instead of valley gaskets for a perfect seal.
There are some that wouldnt recommend this though.
Best sealer I used though was Wurth Red.
Have even used Wurth instead of valley gaskets for a perfect seal.
There are some that wouldnt recommend this though.
#5
Statler
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Posted 15 March 2010 - 07:07 PM
DON'T USE BEAR CONTACT! 
#6
_oldjohnno_
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Posted 15 March 2010 - 07:43 PM
DON'T USE BEAR CONTACT!
You can say that again..
You've only gotta, ahem, "milk" the bear once and then the damn thing won't leave you alone..
.
#7
_Lamo_
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Posted 20 March 2010 - 09:24 PM
Sorry for the late reply, Why did you say that you would never have silicone near the intake Terra?
#8
TerrA LX
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Posted 21 March 2010 - 11:43 PM
Using it around the inlet ports, it leaks.
#9
_lxmini_
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Posted 12 May 2010 - 07:31 PM
i agree sillicone no good remember the fuel contamination that destroyed so many engines that was sillicone in the fuel. normal silastic will do the job i work for toyota as a mechanic and we use toyota's black sealant which is really good and would certainly do the job otherwise i beleive holden actually have a sealant which comes in a little can which is supposed to be good we have used it sometimes if im write the old holden v6's used to leak at the valley gasket and where a real pain to reseal u have to use sealant as well as the gasket and also on the bolts as it use to leak out the bolts as well.
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