Flushing Salt Water from Honda Outboard

Submitted by Douglas G. Young

Parts List:

(1) 3/8" Tee fitting, (1) Rainbird sprinkler system fitting [part number R325C] 3/4" hose thread swivel to 1/4" tubing adaptor, (1) 3/4" pipe thread PVC fitting 1" long , (1) 3/4" water sprinkler cap fitting, and enough 3/8" I.D. tube to do the job [approximately 1.5'].

Installation Instructions:

1. Cut the water bypass hose that runs from just below the oil dip stick to forward side of the thermostat. Cut it on the r/h side of the engine just behind and above the oil dip stick. You will need to cut out approximately 1/2" to allow for the T-fitting length .
2. Install the nylon T-fitting with the T facing aft. You may need to remove the engine cooling water bypass tube to do the cutting or installing of the fitting.
3. Install the Rainbird hose fitting onto the end of the length of 3/8" I.D. tube 1 1/2 foot long. Bevel the end of the hose fitting that inserts into the tube by filing of a small amount of material, You might also want to heat the hose / tube end for ease of assembly.
4. Install the hose end fitting and tube assembly onto the already installed T-fitting and install the end cap and 3/4 " PVC pipe fitting into the hose connection.

Note the last picture showing how the water flows out of all the water ports on the engine. When not flushing be sure the Cap on the hose fitting is securely installed and has no leakage.

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[Click on thumbnail for a larger image]

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Douglas G. Young
1983 Catalina 25  #4063
"WIND LASS"