Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

  • Announcements

    • Rick

      Members Only Fluid Forum View   08/08/2017

      Fluid forum view allows members only to get right to the meat of this community; the topics. You can toggle between your preferred forum view just below to the left on the main forum entrance. You will see three icons. Try them out and see what you prefer.   Fluid view allows you, if you are a signed up member, to see the newest topic posts in either all forums (select none or all) or in just your favorite forums (select the ones you want to see when you come to Fishing Minnesota). It keeps and in real time with respect to Topic posts and lets YOU SELECT YOUR FAVORITE FORUMS. It can make things fun and easy. This is especially true for less experienced visitors raised on social media. If you, as a members want more specific topics, you can even select a single forum to view. Let us take a look at fluid view in action. We will then break it down and explain how it works in more detail.   The video shows the topic list and the forum filter box. As you can see, it is easy to change the topic list by changing the selected forums. This view replaces the traditional list of categories and forums.   Of course, members only can change the view to better suit your way of browsing.   You will notice a “grid” option. We have moved the grid forum theme setting into the main forum settings. This makes it an option for members only to choose. This screenshot also shows the removal of the forum breadcrumb in fluid view mode. Fluid view remembers your last forum selection so you don’t lose your place when you go back to the listing. The benefit of this feature is easy to see. It removes a potential barrier of entry for members only. It puts the spotlight on topics themselves, and not the hierarchical forum structure. You as a member will enjoy viewing many forums at once and switching between them without leaving the page. We hope that fluid view, the new functionality is an asset that you enjoy .
Sign in to follow this  
sugarbeet

RPM's and tell-tale

Recommended Posts

My 35HP Mercury is squirting water from the tell-tale tube outlet when the engine is warm and in idle. However, if I increase the rpm's just a bit the water stream is there. Is this a sign that the water pump (impeller) is failing or are there some other possible causes? What is the impeller made of (material) and how long do they last? Is it easier to replace the whole water pump housing with the impeller inside from the factory or is the impeller replacement a piece of cake? This motor has not seen any muddy or weedy lakes. Thanks.

Share this post


Link to post
Share on other sites

welcome to FM/HSO sugarbeet!

General recommendations are to replace that impeller every 3 years or so.

Some of the older outboards actually do spray at idle so you can't just make a judgment based on that alone if it's an older outboard.

If it hasn't been changed in several years, then it's time.

It's a job a do it yourselfer can tackle, but maybe not classified as a "piece of cake". There are some specific steps that need to be followed.

Share this post


Link to post
Share on other sites

Thanks...it's a 1987 model--Mercury 35HP. The impeller has never been replaced. Why does the water stream increase with rpm's? Seems like if there is impeller wear speed would be a non-factor.

Share this post


Link to post
Share on other sites

That spurting is a sign for you to replace the impeller.

There is no reason or short cut by replacing the entire waterpump. They are bought and installed in pieces. Those parts are an upper and lower housing, a stainless steel plate, and upper and lower seals, a key, and a gasket. Note: if you start your outboard without a water supply you'll create a lot of heat inside the water pump and burn the impeller and damage the housing and plate. If you have water or milky oil in your lower unit you'll replace the upper and lower seals in the water pump along with the new impeller.

The impeller is rubber, its goes through the driveshaft and the reason your seeing a better stream at higher RPMs is because the impeller is turns at higher RPMs as well. Its simply pumping more water.

Picture of an impeller.

W-89680-Evinrude-Johnson-outboard-impell

If you plan on doing this yourself, your library will have a manual or better yet buy one.

If you need seals too you might want to have a shop do this for you.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this