Pump Disassembly For Overhaul; Parts Inspection And Measurement - DARLEY 2BE6.5H Operator's Manual

Honda engine driven portable pump

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Table of Contents

1. Make sure that the engine ignition is turned "OFF."

2. Disconnect sparkplug wire from the sparkplug.

3. Loosen the two clamps [(3) Ref. Drawing DGC0214] and remove the hand primer assembly (17) by

unscrewing the primer check valve from the elbow.

Note: If it is desired to remove the gas tank bracket and fuel tank assembly (20), the gas

tank bracket can be removed with priming assembly (17) still attached after the

primer hose is disconnected.

4. Remove eight 5/16 NC hex head cap screws (12) and remove the pump casing (21) from the inboard

head (9). Discard o-ring (19).

Note: The bottom two cap screws can not be removed from the inboard head without

removing the inboard head from the engine (5).

5. If necessary to replace, remove the seal ring (24) from the pump casing (21). Be careful not to

damage the pump casing.

6. Remove the three thumbscrews (22) which hold the recoil starter to the engine. Remove the recoil

starter.

Note: Step #6 can be eliminated if an impact wrench with a 1" socket is used to remove

the impeller (18) in the next step.

7. Using an impact wrench with a 1" socket on the hex of the impeller, remove the impeller (18) by

turning it counter clockwise

8. If necessary to replace, remove seal sleeve (25) from impeller hub (18).

9. If necessary to replace, remove four 5/16" socket head cap screws (27), sealing washers (32), and

inboard head (9). Discard the four stainless steel sealing washers; never reuse them! Removal of the

inboard head is not necessary for replacing the mechanical lip seal (23).

10. Pull or pry the mechanical lip seal (23) out of the inboard head (9). Discard seal.

1. Clean all parts and examine carefully for wear or deterioration. Replace any questionable parts. Use

only stainless steel when replacing any fasteners, or washers.

2. If the check valve in the priming system is not sealing, inspect for debris trapped between the valve

and its seat.

3. Inspect the seal sleeve (25) for grooves, pits, and scratches. Replace if damaged or worn.

4. Measure the impeller seal ring (18) and stationary seal ring (24) for wear. Use the following table for

comparison:

Original impeller seal ring O.D. (18) ------------------- 3.2991/3.2969"

Original seal ring I.D. (24) ---------------------------------3.316/3.314"

Original diametral clearance -------------------------------- .019/.015"

Maximum allowable diametral clearance -------------------- .025"

Prepared by: TED

Approved by: MCR