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

It's easy - LOOK UPPER right menu.

  • RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

Sign in to follow this  
Daze Off

Water in the Lower Unit

Recommended Posts

Daze Off

Just winterized the boat motor 75hp Merc and found that water had infiltrated the lower unit at some point - any idea what kind of repairs are required and how much they might set me back? Never had this happen to me before....

Daze Off

Share this post


Link to post
Share on other sites
mtreno

ouch - there is only one cheap long shot way i know of out of this one. bad seal on the plug - other than that your talking about a new lower unit.

Share this post


Link to post
Share on other sites
marine_man

Quote:

other than that your talking about a new lower unit.


Not neccesarily... it could be as simple as the prop shaft seal got some fishing line wrapped around it, cutting the seal. It'll require replacing, but way cheaper than replacing the entire lower unit.

I'd say replace the lower unit oil to cover you until spring for sure... if you're in the mood and a little handy take the lower unit off and into the dealer and have them take a look at it. They'll pressurize the lower unit and figure out which seal(s) are leaking.

Double check your plugs, both top and bottom to make sure they've got a gasket on them (and only one).. other than that I'd say it's time for a trip into the dealer.

It can wait till spring since you've replaced the lube, but if you take it in now you won't have to deal with it in spring.

marine_man

Share this post


Link to post
Share on other sites
eurolarva

If you are not up to the task yourself call around to marinas. I had Twin City outboard do mine for 200 bucks about 5 years ago but it had to be done over the winter. Marinas are real slow during the winter so you might get a better deal. Seal kit for that motor is about 30 bucks and a service manual is about 40 dollars. Good Luck

Share this post


Link to post
Share on other sites
ChuckN

Ditto what eurolarva said. wink.gif

Share this post


Link to post
Share on other sites
Daze Off

Thanks guys - I am not handy with engines at all - it was a big undertaking to winterize it myself this year (with help from neighbor) - always had it done by shop in past so will be taking it to a shop - called the dealer where I bought it who indicated it could be as simple as the prop seal ($150 P&L). So will try that route first and hope for the best.

Weird part is that I thought I saw water emerging from around the sacrificial anti-corrosive plate while we were running the motor with the rabbit ears to fog the top. Did not look too closely as I had no real reason to at that point. I remember thinking it must've been side spray from the ears.

Daze Off

Share this post


Link to post
Share on other sites
blgoose

I had the same problem this year with my 40 hp merc.Its wasnt just a little water more like a cup. No fishing line around the shaft either.I noticed the drain plug and fill plug had no rubber washer.I am hoping this is the problem.Is there supose to be a rubber washer? I know there's one on my 50 hp yamaha.

Share this post


Link to post
Share on other sites
Dave

Make sure the rubber washer isn't just stuck to the lower unit after pulling out the plugs, too.

Share this post


Link to post
Share on other sites
Valv

Quote:

Is there suppose to be a rubber washer? I know there's one on my 50 hp yamaha.


Yes, you ahve to have a washer to seal, as mentioned check if it's stuck in the therad of the hole, if not you've probably found your problem, and remember there are 2 plugs with washer, the drain/fill (bottom) and the overfill (top).

Share this post


Link to post
Share on other sites
Rivernut

Daze, I had the same with my 25 Mer. All it was, was a prop shaft. Get the kit and the repair manual and you're in business. Manual is a good thing to have around. You'll be able to handle it just fine. I should add that it's not a bad idea to pay a dealer to pressure test it first.

Share this post


Link to post
Share on other sites
rookie44

if you run your motor with a broken or off balance prop,the seal can go out from shaft vibration also.

Share this post


Link to post
Share on other sites
Daze Off

Excellent suggestion! Thanks!

Daze Off

Share this post


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



  • Your Responses - Share & Have Fun :)

    • smurfy
      sheez got that right!!!!!!!!!
    • hunterdown
      I might be able to make this, I think Jr. will have the time off as well....so, maybe him and I?
    • Rick
      Spring turkey hunters hoping to bag a tom during the first two weeks of the season have until Friday, Jan. 26, to apply for a lottery permit. The season runs from April 18 to May 31 and is divided into six hunt periods, A through F (see table below). Hunt A and B licenses for firearms hunters age 18 and older are limited in availability and assigned via lottery drawing. Turkey lottery applications cost $5 and can be purchased online at mndnr.gov/licenses, by phone at 888-665-4236, or in person from a license agent. Successful applicants will receive a postcard in the mail by mid-February and can purchase their hunting license starting March 1. Firearms licenses for hunts C, D, E and F are not lottery-limited and will be available for purchase over-the-counter beginning March 1. All licensed turkey hunters can participate in Hunt F if they have an unused tag from one of the earlier hunt periods. Archery and youth hunters (under 18) are exempt from the lottery and may purchase a spring turkey license valid during all hunt periods, including hunts A and B. Surplus lottery licenses from hunts A and B, if available, will be sold over-the-counter starting in mid-March. Visit mndnr.gov/hunting/turkey for more information about turkey hunting in Minnesota. 2018 Spring Turkey Hunt Periods
      Hunt A: April 18 – 24
      Hunt B: April 25 – May 1
      Hunt C: May 2 – 8
      Hunt D: May 9 – 15
      Hunt E: May 16-22
      Hunt F: May 23-31 Discuss below - to view set the hook here.
    • Rick
      Youth and adults can learn to hunt turkeys this April with experienced volunteers who will cover safe hunting techniques, how to call-in turkeys, hunting tactics and field dressing a bird. “We teach the skills and techniques that allow new turkey hunters to become lifelong hunters,” said Mike Kurre, learn-to-hunt program coordinator with the Minnesota Department of Natural Resources. “This has been a successful program and as a bonus, we love hearing how former participants go full circle to teach others how to hunt.” Participants can apply through Monday, Feb. 12. The hunts are Saturday, April 21, and Sunday, April 22, and provide opportunities to access locations that may otherwise be closed to hunting. “We get volunteers from the National Wild Turkey Federation and this is the 16th year we’ve cooperated for these hunts,” Kurre said. “Over the years we’ve introduced more than 5,000 people to these hunting experiences. We also work with the Minnesota National Guard to get military adults and their families into turkey hunting.” Details about how to apply and costs to participate are available at mndnr.gov/turkeyhunt. A pre-hunt orientation is required and all participants will need to have a valid firearms safety certificate or its equivalent. Youth must be accompanied by a parent or guardian. Overall participation in the hunts is restricted by the number of volunteers and private lands that are available. Anyone interested in providing turkey hunting land for the mentored youth hunts should contact the Keith Carlson, Save the Habitat Save the Hunt coordinator for the National Wild Turkey Federation in Minnesota at kcanoka@comcast.net.   Discuss below - to view set the hook here.
    • Rick
      Gov. Mark Dayton has proclaimed Jan. 20-28 as Snowmobile Safety Awareness Week in Minnesota. This an opportunity for the Department of Natural Resources, volunteer safety instructors, the Minnesota United Snowmobilers Association (MNUSA) and its 250 member snowmobile clubs to join together to recognize the importance of safe, responsible snowmobiling. “It’s a fun and exciting activity, but snowmobilers should always remember to make safety a top priority,” said Conservation Officer Bruce Lawrence, DNR recreational vehicle coordinator. “They should also always use common sense and keep a clear head when riding.” Here are some other key safety points: Snowmobiling and alcohol don’t mix – don’t drink and ride. Smart riders are safe riders – take a snowmobile safety training course. Always wear a helmet and adequate clothing. When night riding slow down – expect the unexpected. Know before the ride  – always check local trail and ice conditions. Cross with care. Know risks and be prepared – make every trip a round trip. One is the loneliest number – never ride alone. Ride safe, stay on the trail – respect private property. To legally ride a snowmobile in Minnesota, residents born after Dec. 31, 1976 need a valid snowmobile safety certificate. Options for both classroom and online classes can be found at http://www.dnr.state.mn.us/safety/vehicle/snowmobile/index.html People can find Minnesota snowmobiling events and activities on the MNUSA webpage: https://mnsnowmobiler.org/get-involved/mnusa/events. Discuss below - to view set the hook here.
    • eyeguy 54
      sounds like a hoot. hope to get there. 
    • Roscoe010
      Hi Wanderer, I am going up this weekend too.  Glad the weather will be warm! I will try a different pit this time, but had good luck last year.  I hope the fish will be active and hungry.
    • IceHawk
      Thanks Rick! Jeff hope to make it always a good time and laughs when you get a group of great people together. I usally do more jaw jacking  then fishing at these things but for me its just as much fun 
    • Rick
      I will donate a few goodies. I will send it to @Tom Sawyer if he messages me his address.
    • IceHawk
      Lol! Smurfy  Its not as easy to identify areas like the old days the ice towns in Mertens bay and in front of Steils old house on cedar island aren't there like years of past but she's still the same chain that you grew up on. And IMO better than when we wee younger. 
  • Share & Have Fun