Pontiac: 3.4L intake manifold gasket

"mabar" wrote
 
leaks. 
or 

This will have the old style gasket, unless it's been changed already.

Ian

When did GM change over to the new style gasket?

Tom

"shiden_Kai" <com> wrote in message
news:gAaTb.363119$X%.. 
2001, 
to 
engine 

"mabar" wrote
 

It was only released with the last few months. In fact,
the updated bolts that were supposed to be part of the
original repair just showed up in the parts department
about 3 weeks ago. So I doubt that anything other then
the very latest vehicles have the new gasket.

Ian

"shiden_Kai" <com> wrote in message
news:gAaTb.363119$X%.. 
2001, 
to 
engine 
Ian curious to know if there's a visable difference between the newer gasket
and the old one. I recently replaced the lower manifold gasket on a 98
Montana w/95K miles using a Felpro gasket and current torque specs. It was
just starting to show a visable external leak. Decided to repair it before
it leaked internally.

"DonW" wrote

 
gasket 
was 
before 

There is a visible difference. Here's a photo of the two gaskets, new one
is on the left, old style on the right.

http://members.shaw.ca/ianrmac/Images/DSC00958.JPG

The difference can mainly be seen in the addition of two metal pellets
embedded in the gasket around the outer bolt holes. This is so that you
can put more torque on these four outer bolts. The rubber embedded
gasket has changed color, whether this actually means anything is
beyond me. When GM makes changes, they very rarely go into the
technical data of what exactly they have changed, so you rely on what
you see visually. Torque on the new gasket is still 15 ft/lbs for the
inner four bolts, 18 ft/lbs for the outer four bolts. There are now
new bolts available too, these come with the loctite already on the
threads from the factory....you just install them and follow the torquing
procedure.

Ian

Ian

"shiden_Kai" <com> wrote in message
news:gMdTb.357478$.. 
A belated thanks for the photo. The Felpro's looked more like the old
style. I frequently check the coolant & oil level so if there' s a 'next
time' I'll buy genuine GM! It's just a PITA to change. The first set went
97K and the leakage was still minor.

I have a 2001 pontiac Grand Am GT when I took it in for the 30,000 mile
checkup they said my intake manifold was leaking.They relpaced all the Orings
,seals and gaskets,this was covered by the warranty.

mabar wrote:
 

nonsense, how could they all be prone to leaks. when you change the
gasket always use Perma-torgue Blue brand gaskets. aviation gasket seal,
and KW block seal. this is a common problem with all intake manifolds.
never use silicon seal on a car its for plumbers.