I have a Ns55b which is a Nissan 55hp outboard

Kneelan55hp

Recruit
Thread starter
Joined
Oct 12, 2026
Messages
1
I was able to find a reference part for my impeller but even after blowing out my water lines it’s still not having any water come out of tale tell hole
 

reginaldo

Cadet
Joined
Jul 6, 2026
Messages
15
Maybe the water pipe connection between lower unit and powerhead? I’d remove the thermostat and see if water is present/flowing through there.
 

pvanv

Admiral
Joined
Apr 20, 2008
Messages
6,588
The telltale is not the end all of proof of flow.
I assume you got and installed
Impeller only.
Fits:
45A2, 50C, 55B, 60A, 70A & 70A2 2-stroke models
Part #: 353650210M
List Price (MSRP): $33.80

Your telltale may be blocked or you may have a bad water pipe as was previously suggested.
 
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