Thought I would ask in case any of you guys have came across this problem. I have a chapp 180ss with volvo penta 30.GLP fitted.
I have just change the water impeller as routine maintenance, and know the pump not working no water is being taking in from the muffs.
As far i i know seemed quite easy job or though cant physically see what your doing for lack of space. I coated the impeller with silicone grease and replaced o ring,
When i assembled it all back together i put the o ring in place then impeller on shaft then housing then fasten unit down .
main water feed house on top engine feed house below pump.
connected the muffs up ran engine doesn't seem to work. If i take the engine feed pipe off thermostat unit should you expect water to gush out when engine running as i have nothing coming out..
be grateful if anyone could tell me where im going wrong as am baffled .
Now fixed o ring wasn't seated probably