Cummins 8.3 QSC Starboard Impeller

bbwhitejr

Well-Known Member
Apr 14, 2013
4,306
Lake Lanier GA
Boat Info
2003 420DA, 6CTAs
Engines
NA
Changing starboard impeller. Which direction should the vanes orient?

Here is current one:
2FDC93C5-F058-496A-ADF4-3AE615B15D99.jpeg


Bennett
 
It doesn't matter....once the engine fires up, they will all get oriented properly. The flexible vanes on the impellers act more like a positive displacement pump as opposed to a centrifugal pump. It will be fine.
 
Jaybeaux is correct, when the engine shuts down, the impellers get all skewed around. they straighten themselves out every time you start up.
 
Last edited:
Very good! New one installed without removing the pump. Dawn and zip ties made it happen rather painlessly.

Thanks for the info.

Bennett
 
If you have a C-note not doing anything, this thing is the bomb-digity!

 
If you have a C-note not doing anything, this thing is the bomb-digity!

My friend bought one of these and we used it to change my impellers. If I had 2 children, I would have sold one to get this tool for myself. BUY IT, you won't be sorry
 
The dude built a better mouse trap, and deserves to get paid!
 

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