Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oil Pump

Rotor Backlash 0.0080 [02]
Rotor To Body Clearance 0.0150
Rotor Endplay 0.0040 [01]
Rotor Thickness (Minimum)
Inner 0.301
Outer 0.301
Outer Rotor Diameter (Minimum) 3.148
Maximum Cover Flatness Variation 0.003
Relief Spring Free Length 2.390
Relief Spring Pressure, Lbs. @ Inches 18.0-19.0 @ 1.600


All measurements given in inches, unless otherwise specified.

[01] - Measured between pump cover mounting surface & end of gear using straightedge & feeler gauge.
[02] - Maximum inner & outer rotor tip clearance.