RTV Gasket Sealer on Intake Manifold Gaskets?

[e30davie]

yeah that's what i did, i couldn't see any other way of doing it, was easy as to put in with that method...

As for original question, i avoid sealant on as much things as possible on. Unless the surfaces are damaged beyond repair the prescribed gasket should seal properly. If it doesnt specify sealant in the Bentley manual, it doesn't need sealant.

A flat file across the surface of the intake manifold cleans it up nicely and can reveal any potential issues.

[jeffnhiscars]

why do people have so much trouble with that tube?

I cleaned it, put new o-rings in, seals good, happy days?

Because they don't zip tie the spring, put the intake on, then cut the zip ties.

[e30davie]

Use as much sealant as possible on the damn crank case tube. Damn thing never seals.

why do people have so much trouble with that tube?

I cleaned it, put new o-rings in, seals good, happy days?

[digger]

i use non hardening aviation cement (brush on stuff) no silicone or rubbery shit. it fills in the fine machine marks on metal surfaces, yet it wipes off easy with carby cleaner on a rag later on. use it sparingly so it doesn't squeeze into the runner

[MrBurgundy]

I've never used a sealer on an intake manifold gasket and I've never had any problems.

Clean and dry is my 2 cents.

[Kershaw]

Use as much sealant as possible on the damn crank case tube. Damn thing never seals.

[TobyB]

I don't use sealer on anything but the water neck and half moons,
and that's just leftover habit from the 2002...

Permatex gasket sealer on 'paper', Ultra Black on 'rubber'...

whut I do
t

[Echo30V]

No, I did not scratch anything and never indicated that I wanted to use a sealer. I read a number of threads and articles about replacing intake manifold gaskets. Some people used sealer and some did not. I was leaning towards not using sealer but wanted to make sure.

[zaq123]

why do you want to use sealant in the first place? Did you scratch your intake surface/head ports when removing old gaskets? If you have some minor imperfections, Curil is good stuff and makes future reassembly easy. If you there are no issues and just worried.......no sealant needed. OEM gasket will do well

[jeffnhiscars]

Im also a fan of Kuril but NOT for the intake manifold. Install it clean and dry

[Echo30V]

Thanks, so is a sealer necessary when replacing the intake manifold gaskets or just bolt up dry?

[zaq123]

invest into a tube of Curil K2, great sealant. here is a data sheet

https://www.elring.de/fileadmin/Dateiablage_DE/2Service/Datenblaetter/Technische_Dichtmassen/Cruil_K2/TD_Curil_K2_EN_01.pdf

[Echo30V]

All

I've been chasing down some minor oil leaks on my 1990 325i Vert. I just replaced the Oil Pan gasket which cut the oil leaks in half. So I traced the final leak (I hope) to the Oil breather tube. Accordingly I will be pulling the intake manifold to access the breather tube.

I've read many posts on the subject but am a bit confused whether or not to use a gasket sealer when replacing the intake manifold gaskets. Some people use a sealer and some indicate no sealer needed and to just make sure both surfaces are clear of any old gasket. So when I replace the old gaskets should I use a gasket sealer to mate the gaskets to the intake manifold or not?