Volvo Penta 5.0 GXI-J overheating - impeller replacement

Replacing impeller on VP 5.0 gxi after overheating this spring

[@mrzif0013]

Yes, it was the impeller causing overheating and an easy fix. The alternator was causing the squeaking. I took the alternator to the shop and 100 bucks latter were told the alternator' was "good' Finally replaced the alternator as last resort, it was not a good alternator. I ended up selling the boat. Wish I did not sell it now.

[@Gbs-cy4cv]

How u get the nut off ? That one that a ratchet can’t fit into it ? I have same problem, trying to remove minez , but that one bolt is preventing from removing it . Help ?.

[@mrzif0013]

i am having an overheating imtermittent problem and am wodering if a piece of impeller is blocking flow? suggestions on how to clear a engine block free of impeller pieces?

[@tannermontana93]

Did you get it figured out ?

[@joselinopinto7979]

It's clock wise man

[@itisno1]

Lol found that out the hard way. It's fine but man it made a squeekin'.

[@joselinopinto7979]

Is it prohibited to show how you took it out?

[@footloose5600]

Where did all the pieces that broke off the impeller go? Could they be blocking water flow?

[@RobTaylorRTP]

There were some in the output hose. Part of the problem with this outdrive/engine is that you can't use muffs on the outdrive and expect to keep impellers in good condition. Changing the impeller and ONLY USING THE BLUE FLUSH intake for "testing" and running out of the water is the the key to success.

[@MrJeepsterman]

the blue flush hose isn't meant to be used with the motor running

[@11TGUN]

MrJeepsterman on the VP it is. I spoke to my local VP manufacturer about this exact question. On the Mercs you can’t use the flush tube bc it doesn’t push water through the impeller. However in the VP, the flush tube is able to be used due to the way the system is designed to feed water through the raw water pump/impeller.

[@MrJeepsterman]

@@11TGUN depending on the year. I should correct my statement. Early 00's not a motor running

[@11TGUN]

@@MrJeepsterman That definitely could be true. They said it was no issue for my 07' so I didn't ask any other questions about prior generations.