Mercriser 90-8M0124044 Raw Water Cooling Crossover Installation Guide

June 13, 2024
Mercriser

Mercriser 90-8M0124044 Raw Water Cooling Crossover

Product Information

  • Product Name: Raw Water Cooling Crossover Assembly
  • Catalog Number: 90-8M0124044
  • Part Number: 8M0107034

Description: This Raw Water Cooling Crossover Assembly is designed to regulate the flow of raw water in a cooling system. It includes various fittings, plugs, gaskets, and sensors necessary for proper functioning.

Product Usage Instructions

  1. Ensure that the engine is turned off and cool before starting any installation or maintenance procedures.
  2. Locate the existing raw water cooling crossover assembly in your engine.
  3. Remove any existing components or fittings connected to the crossover assembly.
  4. Inspect the new Raw Water Cooling Crossover Assembly for any damages or defects. If found, contact customer support for a replacement.
  5. Install the CROSSOVER PLUG (.250-18) into the designated port on the crossover assembly.
  6. Connect the SEAL FITTING Pipe – Brass (.750-14) to the appropriate connection point on the engine.
  7. Attach the FITTING Straight (.750-14) to the other end of the SEAL FITTING Pipe.
  8. Install the SENSOR ASSEMBLY at the desired location on the crossover assembly.
  9. Use the provided O-RING (1.78 mm x .08 mm) to seal any connections that require it.
  10. Connect the HOSE FSM to Crossover using the appropriate fittings.
  11. Secure the PLUG Pipe (.125-27) Brass into its designated port on the crossover assembly.
  12. Tighten all connections and fittings to the recommended torque specifications.
  13. Attach the RWC Cover Bracket using the provided SCREW (M6x10).
  14. Secure the CLAMP Worm Gear (11-18 mm) around the crossover assembly for added stability.
  15. Place the CAP CLAMP Worm Gear (1.56 Diameter) over the appropriate connection point.
  16. Use the SCREW (M8 x 110) to tighten and secure the CAP CLAMP.
  17. Double-check all connections and fittings for tightness and proper alignment.
  18. Start the engine and monitor for any leaks or abnormal behavior.

Note: For further assistance or troubleshooting, refer to the product manual or contact customer support.

PARTS

Ref #| Part Class| Part Number| Description| Comments| Qty| Note
---|---|---|---|---|---|---
1| 0000| 8M0107034| CROSSOVER|  | 1|
2| 0022| 73379| PLUG (.250-18)|  | 2|
3| 0000| 8M0081836| SEAL|  | 2|
4| 0022| 428611| FITTING Pipe – Brass (.750-14)|  | 2|
5| 0022| 866725| FITTING Straight (.750-14)|  | 2|
6| 0000| 885342002| SENSOR ASSEMBLY|  | 1|
7| 0025| 896699| O-RING (1.78 mm x .08 mm)|  | 1|
8| 0032| 8M0090430| HOSE FSM to Crossover|  | 1|
9| 0022| 390721| PLUG Pipe (.125-27) Brass|  | 1|
10| 0022| 8M0085864| FITTING|  | 1|
11| 0022| 32803| PLUG Pipe (.375-18) Brass|  | 1|
12| 0010| 4009516| SCREW (M8 x 16)|  | 2|
13| 0000| 8M0073879| CAP|  | 1|
14| 0027| 8M0079167| GASKET|  | 1|
15| 0027| 806871| GASKET|  | 1|
16| 0000| 8M0089715| THERMOSTAT 60 Degree C (140

Degree F)

|  | 1|
17| 0022| 806608A02| PLUG ASSEMBLY (.500-13) Blue|  | 1|
18| 0025| 26802| O-RING (.424 x .103)|  | 1|
19| 0010| 8M2600010| SCREW (M6x10) RWC Cover

Bracket

|  | 4|
20| 0054| 815504105| CLAMP Worm Gear (11-18 mm)|  | 2|
21| 0019| 8M0074364| CAP|  | AR|
22| 0054| 815504216| CLAMP Worm Gear (1.56 Diameter)|  | 4|
23| 0010| 40095110| SCREW (M8 x 110)|  | 4|

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