92AS 9

ENGINE

CONTENTS

Table Caption: This table appears to be an index or table of contents, listing engine sizes and their corresponding page numbers, as well as a general entry for "Standard Service Procedures" with its page number.

STANDARD SERVICE PROCEDURES

INDEX

page

. . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

4

. . . . . . . . . . . . . . . . . . . .

5

Table Caption: This table appears to be an index or table of contents for a technical manual, listing sections related to noise diagnosis, bearing clearance measurements, and thread repair.

Table Caption: This table lists various automotive engine components and maintenance procedures, with an indication of their presence or relevance in separate, unspecified columns.

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. Do not use form-inplace gasket material unless specifically called for . 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, 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 MOPAR Gasket Maker, each have different properties and cannot be used interchangeably.

MOPAR SILICONE RUBBER ADHESIVE SEALANT

MOPARSilicone 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 gasket 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

4

is normally red in color. The 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 surfaces.

SURFACE PREPARATION

Scrape clean or wire brush all gasket surfaces to remove all loose material. Inspect stamped parts to ensure 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 requires care but it's easier then using precut gaskets.

MOPAR Gasket Maker material should be applied sparingly 1mm(0.040 inch.) diameter or less of sealant to one gasket surface. Be certain the material 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.

3

The MOPAR Silicone Rubber Adhesive Sealant gasket material or equivalent should be applied in a continuous bead approximately 3mm (0.120 inch) in diameter. All mounting holes must be circled. For corner sealing, a 3.17 or 6.35 mm (1/8 or 1/4 inch.) drop is placed in the center of the gasket contact area. Uncured sealant may be removed with a shop towels. Components should be torqued in place while the sealant is still wet to the touch (within 10 minutes). The usage of a locating dowel is recommended during assembly to prevent smearing of material off location.

CRANKSHAFT SPROCKET BOLT ACCESS PLUG

An Access plug is located in the right inner fender shield. Remove the plug and insert proper size socket, extension and rachet, when crankshaft rotation is necessary.

ENGINE PERFORMANCE

If a loss of performance is noticed, ignition timing should be checked. If ignition timing is retarded by 9, 18 or 27° indicating 1, 2 or 3 (timing belt) teeth may have skipped, then, camshaft and accessory shaft timing with the crankshaft should be checked. Refer to Engine Timing Sprockets and Oil Seals of the Engine Section.

To provide best vehicle performance and lowest vehicle emissions, it is most important that the tune-up be done accurately. Use the specifications listed on the Vehicle Emission Control Information label found in the engine compartment.

• (1) Test cranking amperage draw. See Starting Motor Cranking Amperage Draw Electrical Section of this manual.
• (2) Tighten the intake manifold bolts to specifications.
• (3) Perform cylinder compression test.

4. (a) Check engine oil level and add oil if necessary.
5. (b) Drive the vehicle until engine reaches normal operating temperature.
6. (c) Select a route free from traffic and other forms of congestion, observe all traffic laws, and accelerate through the gears several times briskly.

CAUTION: Do not overspeed the engine. The higher engine speed