Hello, almost done with the rebuilt engine install. Everything going well and now on to the little things. One is regarding the fuel pump. I notice an inlet on one side that seems to have a little vacuum on it. Most pictures I see have a hose attached to this.Is this just a little breather, and if so should it have a little filter or screen on it? Thanks.
Show a picture please of what you mean.
I'm not too good with posting pictures, but the fuel pump has an inlet an outlet and a third connection. Looking at pictures on google , they show a hose (usually) running down below view coming from the third connection. The next time I'm in the shop ,I'll take a pic and see if I can post it.
Your correct pump should in fact have 4 connections. Fuel in and out, and vacuum in and out.