Stuck Mercruiser lower unit impeller

[yimmyb]

I have a shredded lower drive unit impeller that does not want to be removed. Is there an easy way to remove it?

 

[Scott Danforth]

How long have you left it since you last changed it.

Worse case, using a dremmel, you remove the rubber and score the impeller sleave enough to split it. Then you can remove without damaging the shaft

 

[yimmyb]

I have had the boat a little over a year and was having an overheating problem. How do I identify which water pump I have? All I can find is a serial number on the outdrive.

 

[Bondo]

Ayuh,..... You could tell Us what drive ya got, 'n it's serial number,...

 

[yimmyb]

It is a 1980 mercruiser MCM 260 with a mercruiser sterndrive serial # 5583873

 

[Bt Doctur]

Guessing a Alpha1 type

 

[yimmyb]

Impeller was removed. number on pump housing is 46-96148. Internet shows this number followed by a letter and/ or number. Several different styles available. How do I match up these with mine?