5.7 gsi, no water out exhaust on muffs..?

[bransjeep]

Before i hooked up the drive i took a hose to the water inlet hose on the outside of the transom shield and it worked great, good flow no temp issues. Today i ran it on muffs with the DP-A, i even taped the muffs for a good seal but they leaked a bit, my hose isnt the most powerful but it didnt get any water coming out the exhaust. I replaced the water inlet pipe on the drive as well when i reinstalled it. Engine is closed cooling, could this be air, or not enough pressure, i dont think its he impeller since it was good several days ago

 

[Don S]

Re: 5.7 gsi, no water out exhaust on muffs..?

You may not have enough water pressure. It takes a really good flow of water on muffs to get water to the pump instead of just a bunch of air. Did you plug the hole in the bottom of the drives bullet? It's a secondary pickup when the boat is in the water, but it's big enough with a weak hose to loose enough water so the pump won't prime.

 

[bransjeep]

Re: 5.7 gsi, no water out exhaust on muffs..?

well today i pulled the impeller and it is shot..well it was pretty hard and cracked as well as had 5 missing fins, so i assume that was the problem. however im not sure hich impeller to buy. the style my motor uses isnt on the crankshaft..its off to the side on a pulley

 

[bransjeep]

Re: 5.7 gsi, no water out exhaust on muffs..?

here is the impeller housing

 

[bransjeep]

Re: 5.7 gsi, no water out exhaust on muffs..?

http://www.jmsonline.net/volvo-penta-impeller-kit-3862281.htm

is this the guy?

 

[captmello]

Re: 5.7 gsi, no water out exhaust on muffs..?

I'm not sure about the pump and impeller, but I would try to find some of that old impeller downstream from the pump housing. those pieces could give you headaches for years to come.

 

[pvancorenland]

Re: 5.7 gsi, no water out exhaust on muffs..?

Agreed on trying to fine every single piece of the impeller. Pull the hoses and verify what comes out. Don't forget to check the thermostat.

 

[bransjeep]

Re: 5.7 gsi, no water out exhaust on muffs..?

I got all the othe pieces, they were in the housing. My engine is closed cooling

 

[Don S]

Re: 5.7 gsi, no water out exhaust on muffs..?

http://www.jmsonline.net/volvo-penta-impeller-kit-3862281.htm

is this the guy?

Yes, that is the correct kit.

 

[bransjeep]

Re: 5.7 gsi, no water out exhaust on muffs..?

Also this is my first impeller install. What should it be lubed with to prevent a dry start

 

[bruceb58]

Re: 5.7 gsi, no water out exhaust on muffs..?

The kit comes with a tube of what looks like KY jelly.