How To Replace The Head Gasket and Intake Manifold Gaskets On A GM 3800 Engine
In this walkthrough I replace
the head gaskets, upper intake manifold (
UIM) gaskets, and lower intake manifold (
LIM) gaskets on a
1997 pontiac bonneville. These steps will be identical for almost any GM
3800 /
3400 /
3100 series II motor.
If you have any questions feel free to post them on the video and
I'll do my best to try to help!
Here is a link to the the text walkthrough I used as a guide for making this video:
http://www.w-body.com/showthread
.php/49858-Any-info-on-changing-series-2-3800-head-gaskets
Also here's a list of torque specs for most of the motor:
Camshaft
Bolt: 74 ft/lbs +
90 degrees angle torque
Camshaft thrust plate: 132 in/lbs (
T30 torx)
Front cover bolts: 15 ft/lbs + 40 degrees angle torque
Oil pan bolts: 125 in/lbs
Crank sensor nuts: 18 ft/lbs
Camshaft sensor b
...