DaimlerChrysler LH New Yorker 1994 Electronic Service Manual page 627

3.3L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Engine Performance . . . . . . . . . . . . . . . . . . . . . . . 2
Form-In-Place Gaskets
Honing Cylinder Bores
Hydraulic Lash Adjuster (Tappet) Noise Diagnosis . . 4
FORM-IN-PLACE GASKETS
There are numerous places where form-in-place
gaskets are used on the engine. Care must be taken
when applying form-in-place gaskets to assure ob-
taining the desired results. Bead size, continuity,
and location are of great importance. Too thin a
bead can result in leakage while too much can
result in spill-over which can break off and obstruct
fluid feed lines. A continuous bead of the proper
width is essential to obtain a leak-free joint.
Two types of form-in-place gasket materials are
used in the engine area. Mopar Silicone Rubber
Adhesive Sealant and anaerobic gasket materials,
each have different properties and cannot be used
interchangeably.
MOPAR SILICONE RUBBER ADHESIVE
SEALANT
Mopar Silicone Rubber Adhesive Sealant or
equivalent, normally black in color, is available in
three ounce tubes. Moisture in the air causes the
Mopar Silicone Rubber Adhesive Sealant material
to cure. This material is normally used on flexible
metal flanges. It has a shelf life of one year and will
not properly cure if over age. Always inspect the
package for the expiration date before use.
MOPAR GASKET MAKER
MOPAR Gasket Maker is an anaerobic type gas-
ket material normally red in color. The material
cures in the absence of air when squeezed between
two metallic surfaces. It will not cure if left in the
uncovered tube. It is normally red in color. The
STANDARD SERVICE PROCEDURES
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ENGINE
CONTENTS
page
STANDARD SERVICE PROCEDURES
INDEX
page
Hydrostatic Locked Engine . . . . . . . . . . . . . . . . . . . 4
Measuring Main Bearing Clearance and
Connecting Rod Bearing Clearance . . . . . . . . . . . 3
Repair of Damaged or Worn Threads
anaerobic material is for use between two machined
surfaces. Do not used on flexible metal flanges.
GASKET DISASSEMBLY
Parts assembled with form-in-place gaskets may
be disassembled without unusual effort. In some
instances, it may be necessary to lightly tap the
part with a mallet or other suitable tool to break
the seal between the mating surfaces. A flat gasket
scraper may also be lightly tapped into the joint but
care must be taken not to damage the mating sur-
faces.
SURFACE PREPARATION
Scrape clean or wire brush all gasket surfaces
removing all loose material. Inspect stamped parts
to assure gasket rails are flat. Flatten rails with a
hammer on a flat plate if required. Gasket surfaces
must be free of oil and dirt. Make sure old gasket
material is removed from blind attaching holes.
FORM-IN-PLACE GASKET APPLICATION
Assembling parts using a form-in-place gasket re-
quires care but it's easier then using precut gaskets.
MOPAR Gasket Maker material should be applied
sparingly 1 mm(0.040 inch.) diameter or less of
sealant to one gasket surface. Be certain the mate-
rial surrounds each mounting hole. Excess material
can easily be wiped off. Components should be
torqued in place within 15 minutes. The use of a
locating dowel is recommended during assembly to
prevent smearing the material off location.
The MOPAR Silicone Rubber Adhesive Sealant gas-
ket material or equivalent should be applied in a con-
ENGINE 9 - 1
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