The sealing quality of the gasket has been improved and torque must be
changed to a revised specification. Threadlocker must also be applied on the
There is more than just a gasket problem. While changing mine I was able to
remove 4 of the intake bolts by hand...
> The sealing quality of the gasket has been improved and torque must
> changed to a revised specification. Threadlocker must also be
> on the
> intake bolts.
> There is more than just a gasket problem. While changing mine I was
> able to
> remove 4 of the intake bolts by hand...
Since this problem has been going on so long why doesnt GM require
the engine manufacturer to initially use the new gaskets and tighten
the bolts?Is it because they go more than 36K before they leak?
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I don't know either but I saw some steel dowel in the new gasket. The
material seems different too. Can you share your opinion on the new and
improved ?? gasket kit ?
I hope to be ok for awhile, 25000 miles is a bit early to open an engine,
but I caught it on time , no internal damage.
Those steel pellets in the gasket are there so that you can
put a higher torque on the bolts in those locations. Basically,
to prevent the gasket from collapsing or breaking from too
much torque. The new 3.5 engine, (which looks virtually
identical to the older 3.1/3.4 engines) has an even newer
design intake gasket that uses an additional bead of the
gasket material around the coolant ports. It looks like
they are attempting to provide a second line of defence
against the coolant leaking internally.
Even the old style gaskets would seal for a year or two, so
it's hard to say how well the new gaskets will work long term.
Probably the biggest problem I see is the bolts have no
torque on them when you have a leaker. Applying a good
loctite to properly cleaned bolts is probably half the battle.
No, you should be fine. Even with a lot of coolant going
into these engines, we don't see that many catastrophic
failures. Probably will happen down the road a ways, if
How about retorquing the bolts let say on a yearly basis ?
The upper doesn't seems to be hard to remove.
The new procedures requires loctite or not ?
They changed my cam sensor too, the wire were soak with oil and the
insulation was damage. I spoke to the young mechanics and he seems to me to
Nothing to complain about his job so far, car left clean, no fingers on the
hood, let see on the long run now !!
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