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

Rebuild Specifications

Rotor Backlash 0.008
Note: Maximum inner & outer rotor tip clearance
Rotor To Body Clearance 0.0010-0.0035
Note: Maximum clearance between inner and outer rotors and body
Rotor Endplay
Note: Measured between pump cover mounting surface and end of gear, using straightedge and feeler gauge
0.0010-0.0035
Outer Rotor Thickness (Minimum) 0.944
Outer Rotor Diameter (Minimum) 2.469
Maximum Cover Flatness Variation 0.002
Relief Spring Free Length 1.95
Relief Spring Pressure 20 at 1.34