Re: mercury 9.8 How much water should be comming out of the pee hole at idle
I purchased the same Merc '84 9.8 about 6 months ago and have the same issue. The tell-tale dribbles out at idle but perks up considerably under throttle. I replaced the impeller with no significant change. The next step is to replace all the o-rings, gaskets and seals in and around the water pump. Perhaps even the stainless impeller housing. And just maybe, the crazy thing is performing as designed --but it worries me.