AQ120B, raw water pump hard to turn?

[Handegard]

Should the raw water pump (I believe I used the right term, the one that moves lake water) be hard to spin?

I removed the housing while I'm getting at the timing belt. When I did so, I tried to spin it by hand (via the shaft on the back). I cannot spin it by hand. I can use a screwdriver to turn it, but it's hard.

Is this common? The engine would certainly have more than enough power to turn it, but I don't want to put it back together without asking. I was thinking about opening it up and physically looking at the impeller tomorow, but I want to make sure I can get the gasket I need locally first, I don't want to pull it apart and wait a week for a gasket

 

[jerryjerry05]

Re: AQ120B, raw water pump hard to turn?

Yes is should be hard to turn.If it's easy then the parts are worn out.
How old is the impeller?? Get new imp and gasket.Then you will be good for a couple of years.It should be changed every year but will last 2.J

 

[Handegard]

Re: AQ120B, raw water pump hard to turn?

Well, I didn't do it last year, and the boat has sat for 5 or more years prior to that. I would honestly be shocked if my dad had ever done it (unless it failed) so I wouldn't be surprised if it was 15 years old

I planned to replace it this year, but if it ain't broke, it has to wait untill after I get the boat running good

 

[captmello]

Re: AQ120B, raw water pump hard to turn?

If that impeller comes apart and fills your cooling system with chunks of rubber, your good running motor will...

Do as you wish. Oem part-

http://www.volvopentastore.com/Sea-Water-Pump-828026/dm/*******.502236862--**********.908609719--store_id.366--view_id.325823

If you plan to keep the boat, buy it today.

Can you tell I'm serious?

 

[zbnutcase]

Re: AQ120B, raw water pump hard to turn?

Replace it now, cheap insurance.

 

[Handegard]

Re: AQ120B, raw water pump hard to turn?

If that impeller comes apart and fills your cooling system with chunks of rubber, your good running motor will...

Do as you wish. Oem part-

http://www.volvopentastore.com/Sea-Water-Pump-828026/dm/*******.502236862--**********.908609719--store_id.366--view_id.325823

If you plan to keep the boat, buy it today.

Can you tell I'm serious?

Replace it now, cheap insurance.

I think you're both mis-understanding.

Currently, the boat is all sorts of torn apart and not running. I'm doing a ton of work to it before I ever go out this year. I'll replace it, but only after I get it all put back together and running. It's a waste of money to buy a new impeller for a boat that doesn't run

 

[dgabler]

Re: AQ120B, raw water pump hard to turn?

True waste but dont run the motor with out replacing the impeller.