Which way does impeller go

Check with your local Merc dealer for the availabilty of a temp sensor. Fishcop, yes I was getting a good stream of water, but had Major Eng Problem today. It may have bit the dust. I hope I can repair it, but not looking to good right now. Slide the assembled water pump down over the diveshaft and water pump studs. It may not display this or other websites correctly. You should upgrade or use an alternative browser.

Which way does the impeller go? Thread starter Bass-man Start date Jun 25, Bass-man Cadet. Joined Jul 11, Messages I took off the lower unit to check the impeller and when I put it back together I was not sure which way the impeller went as it is directional. Thanks for the help. Laddies Banned. Joined Sep 10, Messages 12, The intake of my pump is top left and the outlet is top right. Is the water taken the short distance from inlet to outlet, where the cam compresses the blades , or is it taken the long distance, where the blades stretch to full length before being compressed again.

Joined 21 May Messages 78, Location Here or there. Joined 12 Jul Messages Location Cambs. Now impellor blades will all be straight out from the hub, twist it in the direction of rotation as you put it in to get blades the right way, they will sort themselves anyway when you turn the engine over.

Old impellors are a bit more picky about going back the same way as they came out as the blades are stressed. Joined 12 Oct Messages 1, Location north lincs. Doesnt really matter. If the blades are leaning one way, leave for a few days and they will almost straighten themselves again,if you get the lean the wrong way as soon as you turn the engine over they will go the right way. Used to try and get them the right way but over the last 20yrs havent bothered and had no probs.

I always put some silicon grease on them,then if the water is a bit slow coming thro. Joined 6 Oct Messages 2, Just put it back the easiest way you can. It'll sort itself out once it's rotated. And a smear of silicon grease will cut out any wear before the water comes through. It's also useful stuff to help self priming when the pump gets a bit worn.

Seperator wrote: For sherwood pump shown on Gt40 in a previous post Yes, you are correct. The cam screw is visable on the outside. Also notice where I painted the arrow up and a cross line to help with reinstalation as it is easy to get mixed up. 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. Below is link to Sherwood site I wish I had found this in September.

Bought my 93' SNCB, changed the impeller and installed the sherwood pump backwards. What a pain. There's a lot of people that wished they'd found CCfan earlier!!! Dopuble up.. Check out this site. 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?