Re: Wrong impeller, Volvo AQ125 (AQ131, 151, 171)...?
Re: Wrong impeller, Volvo AQ125 (AQ131, 151, 171)...?
This would be much easier if you also did provide article numbers (which one impeller is deemed is right and which one is wrong)...
But that said...
On the AQ125A you have sea water pump 828026 (later replaced by pump 855578)
On the AQ131 and AQ151 we have sea water pump 855578
On the AQ171 I have sea water pump 855517
All carry impeller kit 875575. To me, the pumps are identical (part from the screw that retains the cam), but someone probably knows that better.
That said, I have NEVER managed to get the impeller in place without first removing the "cam" (item 10 on the pump schematics), and then reinstalling the cam (cam removal requires at a minimum removal of the copper sea water pipes, but I just pull the entire pump, since it's almost done when the pipes are disconnected).
So, I have never reflected over this, nor worried, but maybe there is something to it. In my case since the impeller is so "darn" hard to put in w/o removing the cam. Normal?
And, as a side note when looking at this:
"My" pump for AQ171: 855517, price $669.70
The pump for AQ151: 855578, price $396.13
A pretty significant difference for what appear to be the "same" pump (part from one little screw)...
Anyone with insight here, or did we just have too much time on our hands on gloomy monday evening...?
Then, when on the topic; When buying the impeller kit 875575, one always get a flimsy paper gasket that sure have no place on my pump, and does not seem to to go with the impeller (on a different pump) either since the diameter is way off. Anyone know where this gasket does belong? Looks almost like the gasket on some of the pumps on the AQ170, but then why packaged with an impeller that does not belong there?
