1967 mercury 500 impeller?

pete500 · #1 July 14th, 2008, 03:35 PM

hi i have a 1967 mercury 500 50 hp 4cyl sn 2118510 and it runs fine but at an idle it does not shoot out water just some steam it runs out fine wide open is this normal any help is appreciated thank you

tredragon · #2 July 14th, 2008, 05:03 PM

I have a 69 Merc 500 and it "pee's" at idle. I had to clear out my pee hole tube with some electrical wiring (or weed-eater wire) to get it to pee at all. I would think if it's peeing when it's got some throttle, you're doing good... just keep an eye on how hot the manifold cover is getting. At idle it should be touchable, almost cool.

Laddies · #3 July 14th, 2008, 05:12 PM

Your impeller has a set in it and needs to be replaced.

bchoate · #4 July 14th, 2008, 05:23 PM

Quote:

Originally Posted by Laddies

Your impeller has a set in it and needs to be replaced.

The impeller should be replaced about every two years or so just for normal maintanace. They can take a "SET" after a while that will cause poor pump perfomance.

pete500 · #5 July 14th, 2008, 05:48 PM

how do i go about getting to the impeller