|
Try Priming The New Impeller
I went through this identical scenario many years ago- a new impeller would't prime. When primed the new impeller by pouring water into it instead of pulling water into it, it worked fine. Now whenever I open the pump up I prime it before I start the engine. It always works great. I sure my pump is slightly worn as mentioned but I run at 150 degrees+\- in my RWC engine so I'm getting plenty of water through the engine. I've left it alone over the years.
My best guess in your case is that the pump is worn a bit and even though the old and new impellers appear to be the same the old one is swollen in some aspect just enough to pull a prime.
If the new impeller won't hold a prime you will have to get a new pump or work on the old one.
TRUE GRIT
Last edited by JOHN COOKSON; 05-31-2016 at 01:50 AM.
|