Small hole in Water pump housing.

[whc290]

I was putting in a new impeller on the lower unit of a 105 Hp Chrysler. I noticed a small hole ( about pin head size) on my housing which allows water to escape... is this a vent or does the housing need to be replaced? It looks like it was made this way..

 

[Terry H]

Re: Small hole in Water pump housing.

I'm looking at a brand new housing and it has a slightly oversize pinhole...I don't know that it's necessary, but it's there. You should be fine as long as the housing is smooth enough not to prematurely erode the impeller...just a thought

 

[DJ]

Re: Small hole in Water pump housing.

Usually that hole you describe is to help the pump "prime". The air has to go somewhere. The sooner the air can be exhausted, the sooner it pumps water.

 

[whc290]

Re: Small hole in Water pump housing.

Thanks for the imput, saved me some money!

 

[whc290]

Re: Small hole in Water pump housing.

Thanks for the imput, saved me some money!