Intake manifold leaks on LH cars

[Art Begun]

Original version of LH often got leaks. Was wondering if it was a
plastic manifold problem or a gasket problem. Never happened to me
but it came up in a discussion in another group.

 

[Steve m...]

Art,
The reason they leak is that they are actually made from something as cheap
as a sheet of paper. And just as thin. As a result they break easily and
leak. Just a cheap gasket problem. Nothing more.

Steve m...

 

[Neil Nelson]

Original version of LH often got leaks. Was wondering if it was a
plastic manifold problem or a gasket problem. Never happened to me
but it came up in a discussion in another group.

The original LHs did not have a plastic intake manifold.

The gasket failures are likely to be because they weren't a
reinforced gasket, just thin single layer.

 

[James Linn]

The original LHs did not have a plastic intake manifold.

The gasket failures are likely to be because they weren't a
reinforced gasket, just thin single layer.

Agreed.

When mine were replaced I was amazed at the difference between the thin
original and the steel mesh reinforced replacement. My original actually was
sucked in on one cylinder - no way the replacement would be.

James Linn

 

[Neil Nelson]

The gasket failures are likely to be because they weren't a
reinforced gasket, just thin single layer.

Agreed.

When mine were replaced I was amazed at the difference between the thin
original and the steel mesh reinforced replacement. My original actually was
sucked in on one cylinder - no way the replacement would be.

James Linn[/QUOTE]


Your mechanic was smart enough to use aftermarket gaskets,
good for him!