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Old 25 June 2016, 13:47   #1
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How to remove impeller liner?!?

Anyone got any tips on how to get the liner out of the pump housing??

Tried hitting it with a punch and hammer but no luck

Currently trying the bowl of boiling water trick but no luck.

Trying to not ruin the housing but it's just not budging!

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Old 25 June 2016, 13:53   #2
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If its that seized you may not do it.. the last one i did ..i used a large pair of pliers on the small lip (as in picture) and twisted it..it eventually tore down enough and wrapped around a bit to get some wurth down it and a pair of decent molegrips to pull it.
did it at opposite ends and after 15 mins it shifted
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Old 25 June 2016, 13:59   #3
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If its that seized you may not do it.. the last one i did ..i used a large pair of pliers on the small lip (as in picture) and twisted it..it eventually tore down enough and wrapped around a bit to get some wurth down it and a pair of decent molegrips to pull it.
did it at opposite ends and after 15 mins it shifted

Okay so I shouldnt worry too much about bashing it about with some brute force then?
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Old 25 June 2016, 14:40   #4
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there was no force involved Luke. i Just twisted the lip of the liner like undoing a sardine can type thing and it bent in enough to wd40 it around the rim, it eventually tore and i used the torn metal to grip onto with mole-grips. i then smacked the mole-grips which started shifting it
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Old 25 June 2016, 15:33   #5
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I tried for over half an hour and it was fairly clear it wasn't going to budge!

Which wasnt too surprising.
The lower housing is ruined by salt so am going to just buy a whole water pump and have all new Click image for larger version

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Cheers for the help though
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Old 25 June 2016, 17:29   #6
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Check the thermostat housing. That's another area that can build up with salt. You'll need a gasket to refit. Once the new impeller and water-pump is fitted (Tohatsus should pee like a horse) from the telltale.
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Old 29 June 2016, 13:13   #7
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Check the thermostat housing. That's another area that can build up with salt. You'll need a gasket to refit. Once the new impeller and water-pump is fitted (Tohatsus should pee like a horse) from the telltale.
I was out at the weekend and noticed no water coming from the tell tale or exhaust of my 25 2 stroke tohatsu

Ordered new impeller kit which arrived today, fitted and tested just now and it does indeed pee like a horse . Well pleased as its the first one i have done.
The old one had a bit of wear damage but to my untrained eye it didnt look too bad. I thought it should have pumped something but not a drop. Is the general consensus to change every other season unless you get a problem sooner.
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Old 29 June 2016, 15:56   #8
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Is the general consensus to change every other season unless you get a problem sooner.


I do mine every season unless I haven't used it much...but that's just me. This impeller is in a new engine I bought that apparently had been done around 1 year ago....
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Old 29 June 2016, 17:02   #9
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Not a bad shout, i may do mine that often now i know what a pop it is to do.
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