I'm in the process of replacing my intake manifold gasket on my 1998
4.3 S-10 Blazer, mine was leaking, which by the looks of it is a pretty
common problem with these motors.
I bought the gaskets yesterday from NAPA, I beleive they are a Victor
brand or something like that. Has anyone used these type of gaskets
They have a type of silicone or something like that built right into
the gasket material. Should I still put a thin bead of RTV down before?
The guy at NAPA recommened the copper spray type sealant which I kind
of steered away from.
Any thoughts you guys have would be gretly apprciated.
The Victor gaskets are at least as good as the OEM GM ones,
Fel-Pro has a new series of gaskets out now that is supposed to
address the weak points of this particular engineering screw up,
so they probably would have been a better choice over Victor.
Do not put any sealer around any of the ports or on the gaskets
themselves, just run a bead across the ends of the block (front
and back) and run it up the cylinder head about 1/4 inch, place
the gaskets in place and then put a dab of silicone sealer at the
bottom corner to cover any gaps where the heads/gaskets/block
meet. if the gaskets didn't come with a tube of RTV for the ends
of the block (they did for a while), I'd recommend a brand called
"The Right Stuff," NAPA should have it on the shelf.
Their recommendation for using Copper spray gasket shellac is
absurd, those gaskets need to move as the engine heats and cools,
gluing them down will cause them to fail in very short order.
Thanks very much for the reply. I did hear from someone or someplace
that Fel-Pro made a better gasket then the OEM.
I am tempted to bring these Victor gaskest back and try the Fel-Pro
brand. Just for my peace of mind anyway, this is not a job I would want
to do again.
Years ago I had a Plymouth Minvan with the Mitsubishi engine which was
prone to blowing head gaskets. The mechanic I had do the job used that
copper spray junk, needless to say the head gasket did indeed blow
The mechanic I hired to do the job the second time thought the same as
you, that he never should have used that spray. So that's the whole
line of thinking I was going through, it did not sound right.
Thanks much, have great day!
Hedder gaskets expand and contract.....
as i was very use to replacing mine until i shelled out the big bucks for
dead soft Aluminum gaskets.
Explain how a intake gasket "moves" for
That's nice, however, the OP is working on the other side of the
The cylinder head expands and contracts at a different rate than
the intake manifold, there is a 'shearing' action at play.
Chevy V engines have been doing this for a very long time, the
plastic backbone gaskets used on the OPs vehicle (and many other
GM engines) are very prone towards the gasket tearing apart after
a number of heating/cooling cycles, although it is much more
popular/fashionable to blame the type of coolant that GM uses.
Really? My 2002 3.4 hasn't had the antifreeze changed and it's not
losing coolant (plus the coolant is still nice and clean). I did
follow GM's recommendation and change the radiator cap, though.
There are two classes of pedestrians in these days of reckless motor
traffic - the quick and the dead.
~ Lord Dewar 1933 ~
Climbing into a hot car is like buckling on a pistol. It is the great
equalizer. ~ Henry G. Felsen 1964 ~
I just remembered, there are two versions of intake gaskets used
1) The ones that will leak.
2) The ones that are going to leak.
I'd advise you to not budget for this ahead of time, that way,
you'll be caught totally off guard.
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