Impeller direction

I was curious because I had a Barco impeller which is what the Globe's were previously. It was made out of some sort of poly urethane material like upgraded suspension links are made of. Can't find the one I had,must have thrown it out. Pete put in a little OT and get some new ones,remember when your son reworked your underwater gear? Imagine what he could accomplish overheating it

Gary S wrote: Kmans wrote: I'm looking for an impeller that does not need replaced every year. I had one that was made of a different material and I saw it in this thread and wondered if anyone knew where I could find it. Why do you need to replace every year?

Kelly,
I too am wondering why you are replacing them yearly. I've had them last 20 years and I don't even remove them for winter layup. You must be running them dry!! Are you running the engine even for short times without water?

Kmans wrote: I'm looking for an impeller that does not need replaced every year. I had one that was made of a different material and I saw it in this thread and wondered if anyone knew where I could find it.

Why do you need to replace every year?

I'm looking for an impeller that does not need replaced every year. I had one that was made of a different material and I saw it in this thread and wondered if anyone knew where I could find it.

You guys aren't really talking about which way the blades go are you? I think my head would explode.
Just pay attention as to which side of the pump the cam screw is on before you take it off.

just go and get a genuine Sherwood impeller 9959k if I remember right.

What boat ? What engine? It makes a difference ........

I am not asking about direction as much as the impeller itself. I went to replace mine just because it had been a while, The old one I took out was much more durable than the new one I purchased to put back in. The pic on this post by Tim has the one I want, I just don't know where to get it. I would put my old one back in in a minute if I could find it. The new one only lasted a year or so. Any ideas?

There's a lot of people that wished they'd found CCfan earlier!!! 4 hours and $100 bucks...consider yourself lucky!!!

I found this information on the Sherwood website.

Which is the Inlet Port and which is the Outlet Port?
One frequently asked question is which port is the inlet and which is the outlet. Most Sherwood rubber impeller pumps are bidirectional, so the rotation of the engine and the orientation of the pump mount will determine which port is which.

In general there is a cam screw between the ports. That screw holds the cam in place; the function of the cam is to squeeze the impeller as it rotates over it. As the impeller moves away from the cam, the impeller blades open up and water is ingested in the pump (pump INLET). As the impeller approaches the cam and becomes compressed, the water is forced out of the pump (pump OUTLET).

Below is link to Sherwood site... Very helpfull - covers many styles of pumps

http://www.sherwoodpumps.com/en-us/Products/Pumps/Technical+Tips/FAQ1/FAQ1.htm

82 Nautique 1 wrote: Mounting direction 351 PCM Ford

Dennis,
Careful here - don't want to mislead people with LH standard rotation engines. You have pictured the position for a RR engine. No name (seperator) has the proper advice.

Seperator wrote: For sherwood pump shown on Gt40 in a previous post...Cam screw in towards mtr for LH/ std Rotation...Cam Screw out towards starboard side of boat for RH/ Rev Rotation.

For sherwood pump shown on Gt40 in a previous post...Cam screw in towards mtr for LH/ std Rotation...Cam Screw out towards starboard side of boat for RH/ Rev Rotation. Hose bibs up and down

Sherwood RWP Ski Nautique w/351. It all depends on the ROTATION of your engine. Remember....the 1:1 engines are a reverse rotation engine!

PCM Tranny 1.23:1 Tranny- Drain Screw points IN! (Points towards the crank on the motor)




Borg Warner 1:1 Tranny-   Drain Screw Points OUT! (you can see it if installed correctly)

Tim

I don´t know why but in the sherwood rwp for some reason you need to remove the pump to work it out so thats when you get confused..I think removing it makes it easir to work on them..And when I do it I disconnect the hose at the pump entrance and outlet...and mark the position..

It's always confusing to me how many people get in trouble replacing an impellar. The only way you can get in trouble is if you remove the hoses from the pump while replacing the impellar. I have changed impellars in many direct drive inboards and have NEVER had to remove the hoses to do it. Just unbolt the housing from the brackets, remove the bolts so you can split the housing open, R/R the impellar and bolt it all back in. No chance of putting in in backwards.