Ford RACING M-6316-C351 Crankshaft Damper Instruction Manual

: June 17, 2024
: Ford RACING

Table of Contents

Ford RACING M-6316-C351 Crankshaft Damper
Product Information
Product Usage Instructions
INSTALLATION INSTRUCTIONS
CRANK PULLEY SPACER APPLICATIONS
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Ford RACING M-6316-C351 Crankshaft Damper

Product Information

Specifications :

Product Name : M-6316-C351 Crankshaft Damper
Compatibility : Externally balanced 302 engines produced prior to 1981, externally balanced 289 and 351 V-8s
Unbalance : 28.2 oz.-in.

Product Usage Instructions

Step 1: Engine Preparation
Ensure that the engine is completely cold before starting the installation process.
Step 2: Damper Removal
Using a puller or removal tool, carefully remove the original damper from the crankshaft.
Step 3: Timing Mark Identification
Identify the correct set of timing marks for your engine. Highlight the degree mark for your initial timing setting with paint or grease pencil for future timing location identification.
Step 4: Crankshaft Post Inspection
Inspect the crankshaft post to ensure there are no burrs or rust. If necessary, polish it with Scotch brite or very fine emery paper.
Step 5: Interference Fit Measurement
Measure the crank snout OD and the Damper ID at the minimum section. Subtract the damper ID from the crank snout OD to determine the interference fit. Recommended fit is between .0002 and .0012. If the fit is excessive or too tight, have the damper hub ID honed by an automotive machine shop. If the fit is too loose, contact the Ford Racing Techline.
Step 6: Key Examination
Examine the key and if it is damaged or loose, install a new key in the keyway groove of the crankshaft.
Step 7: Front Timing Cover Seal Replacement
Replace the front timing cover seal with a new one.
Step 8: Lubrication
Smear clean engine oil on the crankshaft post and the timing cover oil seal lip.
Step 9: Damper Expansion
Immerse the damper in boiling water for 15 minutes. This will expand the hub of the damper, making installation easier.
Step 10: Damper Installation
Remove the damper from the boiling water using insulated, heat-proof gloves. Oil the hub ID and quickly slip the damper onto the crank post with the damper keyway aligned with the crank key. Use a smooth block of aluminum to protect the face of the damper while driving it onto the crank post.
Step 11: Bolt and Torque
Quickly install the damper bolt and washer, and torque it to 90 ft./lbs. Do not allow the damper to cool before completing the installation.
Step 12: Final Torque Check
After the damper has cooled completely, recheck the torque to ensure proper installation.

Frequently Asked Questions (FAQ)

Can this crankshaft damper be used with internally balanced engines?
No, this crankshaft damper is specifically designed for externally balanced engines. For internally balanced engines, please refer to the note on page 2 of the user manual.
What should I do if the interference fit is too tight or too loose?
If the interference fit is excessive or too tight, it is recommended to have the damper hub ID honed by an automotive machine shop. If the fit is too loose, please contact the Ford Racing Techline for further assistance.
Where can I find factory Ford shop manuals?
Factory Ford shop manuals are available from Helm Publications. You can contact them at 1-800-782-4356 to purchase the manuals.
What is the contact information for Ford Racing Techline?
You can reach the Ford Racing Techline at 1-800-367-3788 for any technical assistance or if you have any questions regarding the installation of the M-6316-C351 crankshaft damper.

M-6316-C351
Crankshaft Damper INSTALLATION INSTRUCTIONS

NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT PRIOR AGREEMENT AND WRITTEN PERMISSION OF FORD RACING PERFORMANCE PARTS.
Please visit www.fordracingparts.com for the most current instruction information
PLEASE READ ALL OF THE FOLLOWING INSTRUCTIONS CAREFULLY PRIOR TO INSTALLATION. AT ANY TIME YOU DO NOT UNDERSTAND THE INSTRUCTIONS, PLEASE CALL THE FORD RACING
- TECHLINE AT 1-800-367-3788 ! ! !
NOTE :
The M-6316-C351 crankshaft damper has a bolt in counterweight to achieve the 28.2 oz.-in. unbalance required for externally balanced 302 engines produced prior to 1981 and all externally balanced 289 and 351 V-8s. For internally balanced engines see note on page 2.
WARNING : THERE MAY BE TIMING CHAIN COVER-TO-DAMPER INTERFERENCE WITH EARLY STYLE (REAR LOADING SEAL) COVERS ! ! !

INSTALLATION INSTRUCTIONS

Step 1: Engine must be completely cold.
Step 2 : Remove water pump. Rotate engine by hand until timing pointer indicates 0° TDC.
Step 3: Remove original damper carefully using a puller or removal tool.
Step 4: The 289, 302, 351 engine family has used several different timing pointer locations. Most applications will have a timing pointer at the 10 o’clock, 11 o’clock or 2 o’clock pointers. The Ford Racing damper has two sets of timing marks for either 11 o’clock or 2 o’clock positions; 10 o’clock timing pointers should be replaced with an F1TZ-6023-A. With the crankshaft keyway at the 12 o’clock position, the #1 piston is at TDC. In this position, the timing pointer should point to one of the 0° marks on the damper. For a quick check prior to installation, compare the timing marks on the original damper with the marks on the Ford Racing damper to determine if one of these is the correct timing marks for your application. If it looks like the pointer will not line up with either 0° line, call the Ford Racing Performance Parts Techline.
Step 5: After you have identified which set of timing marks are correct for your engine, highlight the degree mark for your initial timing setting with paint or grease pencil (white or yellow are easiest to see) for future timing location identification.
Step 6: Inspect the crankshaft post to ensure there are no burrs or rust. If required, polish with Scotchbrite or very fine emery paper.
Step 7: Measure the crank snout OD and the Damper ID (at the minimum section). Accurate measurements with both parts at the same temp are essential. Subtract the damper ID from the crank snout OD to determine the interference fit. Recommended fit is .0002″ to .0012″. If the interference is excessive (too tight) have the damper hub ID honed to bring the fit to spec. Most automotive machine shops are equipped to perform the honing operation. If the fit is too loose, call the Techline at (800)-367-3788.
Examine the key. If it is damaged or loose in the keyway groove of the crankshaft, install a new key.
Step 9: Replace the front timing cover seal.
Step 10: Smear the crankshaft post and the timing cover oil seal lip with clean engine oil.
Step 11 : Immerse the damper in boiling water for 15 minutes. This will expand the hub of the damper to make installation easier.
Step 12: Remove the damper from the boiling water (using insulated, heat-proof gloves). Oil the hub ID and quickly slip the damper on the crank post with the damper keyway aligned with the crank key.
Step 13: Use a smooth block of aluminum to protect the face of the damper while driving it on the crank post. Quickly install the damper bolt and washer and torque to 90 ft./lbs. DO NOT ALLOW THE
DAMPER TO COOL BEFORE INSTALLATION IS COMPLETED.
Step 14: Recheck torque after the damper has cooled completely.
Step 15: The 289, 302, 351 engine family has used many different styles of crankshaft dampers with various pulley spacings and bolt hole combinations. Ford Racing offers pulley spacers to properly position the crank pulley. Please see the attached list for your application.
Step 16: Before reinstalling the water pump, ensure a minimum of 1/8″ clearance exists between the damper inertia ring and the pump housing. WARNING: Some cast iron water pumps have a casting rib, which must be ground off to clear the damper.
Step 17: Check pulley alignments and check clearance for all components before restarting engine. If you have difficulty installing your Ford Racing damper, please call the Ford Racing Techline at 800-367-3788.

INTERNALLY BALANCED CRANKSHAFTS:
For special-purpose race engines that utilize an internally balanced crankshaft, the bolt-in counterweight can be removed to convert the damper to a neutral balance condition.
NOTE: Your Ford Racing damper is correctly balanced at the factory. Should your engine be dynamically balanced by a balancing shop, no material is to be added or removed from the damper.

NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT PRIOR AGREEMENT AND WRITTEN PERMISSION OF FORD RACING PERFORMANCE PARTS.

CRANK PULLEY SPACER APPLICATIONS

PART NUMBER| ENGINE| YEAR| CRANK PULLEY BOLT PATTERN| SPACER THICKNESS
---|---|---|---|---
M-8510-A351| 351W| 79 & earlier| 4 bolt| .350″
M-8510-B351| 351W| 80 & later| 4 bolt| .950″
| 302| 80 & earlier| |
M-8510-C351|

301/351W with .917″
SVO crank sprocket

|

302: 80 & earlier; 351W: 80 &
later; 351: SVO HO

| 4 bolt| .875″

NOTES:

1979 and earlier 351W with .917″ SVO crank sprocket can use the M-8510-A351 spacer if .070″ is machined from the rear of the damper hub.
Early 3-bolt crank pulleys generally bolt directly to the damper (damper is drilled for 3- and 4-bolt patterns).
However, sheave alignment should be checked and the pulley shimmed as necessary to correct any misalignment.

Factory Ford shop manuals are available from Helm Publications, 1-800-782-4356