xeitosaphil
Well-Known Member
Started the engine yesterday ( Yanmar 2GM20) 1st time for over 6 weeks, as solar panel keeps batteries charged up .
No water coming out of exhaust so shut down smartly. Checked water intake from vetus strainer all ok. Removed pump from engine and disconnected water feed pipe from forward end of the pump at the elbow on engine. Seemed to be a build up of salt in end of tube, so cleared that.
Thought I would check water pump impellor while everything disconnected from engine, just in case it had shed a fin or something. Checked impellor over, no cracks or splits, not come adrift from hub, and seemed ok. So I replace old impellor, and re assembled the pump, started engine, hey presto water out of exhaust, and no leaks from the pump either.
Now I’m thinking maybe I should get a couple of new impellors for spares, and replace the old one in the pump along with the gasket with my genuine Yanmar ones, which I currently have as a spares?
I know some time back that there was a common problem with impellors not even lasting a season in some cases, but wondered now that time has moved on, if things might be better now?
Question is, are the alternative replacement impellors in the market today now sold by the likes of companies on ebay any good?
I noticed that my genuine Yanmar impellor is actually a Johnson 806B-1 which came in a sealed Yanmar package spare number 104211-42070, so not sure what’s going on there, or are you still better off to get the genuine Yanmar spare at inflated costs, even though they may not be made by them, but only packaged and distributed by them.
I notice that the Johnson 806B-1 is also half the price of a Yanmar!
Has anybody had any good or bad experiences lately using alternative ones, or know of ones which seem to last ok , or should I go with genuine Yanmar parts.
Cheers
Philip
No water coming out of exhaust so shut down smartly. Checked water intake from vetus strainer all ok. Removed pump from engine and disconnected water feed pipe from forward end of the pump at the elbow on engine. Seemed to be a build up of salt in end of tube, so cleared that.
Thought I would check water pump impellor while everything disconnected from engine, just in case it had shed a fin or something. Checked impellor over, no cracks or splits, not come adrift from hub, and seemed ok. So I replace old impellor, and re assembled the pump, started engine, hey presto water out of exhaust, and no leaks from the pump either.
Now I’m thinking maybe I should get a couple of new impellors for spares, and replace the old one in the pump along with the gasket with my genuine Yanmar ones, which I currently have as a spares?
I know some time back that there was a common problem with impellors not even lasting a season in some cases, but wondered now that time has moved on, if things might be better now?
Question is, are the alternative replacement impellors in the market today now sold by the likes of companies on ebay any good?
I noticed that my genuine Yanmar impellor is actually a Johnson 806B-1 which came in a sealed Yanmar package spare number 104211-42070, so not sure what’s going on there, or are you still better off to get the genuine Yanmar spare at inflated costs, even though they may not be made by them, but only packaged and distributed by them.
I notice that the Johnson 806B-1 is also half the price of a Yanmar!
Has anybody had any good or bad experiences lately using alternative ones, or know of ones which seem to last ok , or should I go with genuine Yanmar parts.
Cheers
Philip
