Performer-Link Timing Chain & Gears Catalog # 7800 Series PDF Installation Instructions
TIMING CHAIN AND GEAR KEYWAYS:
The Edelbrock crankshaft sprocket is manufactured with three keyways (except street legal sets #7802, #7809, and #7814).Each keyway is marked with a geometrical symbol indicating a standard straight-up or zero (q or “0”), advanced (v or “A”), or retarded (s or “R”) camshaft position (See Figures 3 through 8, showing each installed position).In many cases, being able to retard or advance a camshaft enables you to be more exact when installing a camshaft for a specific application.Advancing or retarding a camshaft can shift the power range to a lower or higher RPM. Advancing a camshaft will move the torque to a lower RPM, while retarding a camshaft will move the torque to a higher RPM. For persons not familiar with camshaft function, we suggest the standard installation position.
NOTE: If the timing symbol on your stock crankshaft sprocket is in line with the keyway, use Figures 3,4, or 5 when installing your Edelbrock
timing chain and gears. If the timing symbol on your stock crankshaft sprocket is not in line with the keyway, use Figures 6,7, or 8 when
installing your Edelbrock timing chain and gears. CAUTION: Edelbrock Performer-Plus camshafts have been engineered and ground to produce optimum performance when installed in the straight-up zero position only. DO NOT install a Performer-Plus or Performer-RPM camshaft in an advanced or a retarded position.When using Performer-Link Timing Chain and Gears (7800 Series) with Edelbrock cam and lifter kits, straight-up timing alignment is achieved. If any other timing gear set is used, it is necessary to check camshaft position for correct timing alignment.This requires indexing the camshaft with a degree wheel to verify timing alignment.OEM or non-Edelbrock timing timing gear sets are not recommended for use with Edelbrock camshafts.
Performer roller chain sets are engineered to operate up to 6500 rpm. Never hammer directly on chain or sprockets. You can crack the hardened links and pins and cause early failures. SPECIAL INSTRUCTIONS FOR #7820 For 1962–’64 vehicles discard original spacer and thrust plate and use
Ford thrust plate #C90Z-6269-A. For 1965–’72-1/2 vehicles use existing thrust plate. For 1972-1/2–’84 vehicles discard original 2-piece eccentric and use 1-piece eccentric Ford #C3AZ-6287-B (original 2-piece eccentric may be used with #7811).Use existing thrust plate. All years:Do not re-install original oil slinger.
Download Performer-Link Timing Chain & Gears Catalog # 7800 Series PDF Installation Instructions
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