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Mariner 9.9 hp 2 stroke cooling question

S

sailscubasurf

Member
I recently purchased a 1995 Mariner 9.9 HP 2 stroke.

I noticed the water flow from the pee tube was not steady and didn't seem to be of sufficient volume.

To fix this, I replaced the impeller, but the water flow still isn't a steady stream.

Can someone with more experience give me some guidance as to what it could be, or what I need to check / replace to get the cooling system up to snuff?
 
Those are tricky. You need to replace the impeller with the entire kit or they don't pump water correctly.

Jeff
 
Check to see if the water telltale is exiting from the thermostat housing. It will not be a steady stream until the thermostat opens fully which may be only at highspeed.
 
How did the original impeller look? Maybe the telltale is partially plugged. It might not be a part from the impeller but it could be plugged with weed or any other contaminants that the motor picked up along the way. Saltwater motor?
 
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