Question about RTO Outboard Motor Bass Fishing Boat Rod Reel Oil & Grease

3 Answers

Help. recently cavitated my 140 hp 1989 mercury outboard motor at high speed.I Removed the lower unit several times but only goes in forward about 5mph. Please help Tx jack

Posted by on

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

You may have spun the hub inside your propeller. Look between the center hub with the splines and the casting of the prop there is a rubber insert in there. See if it is distorted. The nut and washer are keeping the prop on but I think you will find if you put it in gear and try to turn the prop by hand it will spin and the shaft will not move.

Posted on Sep 19, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 677 Answers

Not really sure what is wrong.Do all the gears work?Does the motor rev properly.Did you change the height of the motor.If the motor etc. are all ok and the motor cavitated at high speed,you may have spun the bush in the propeller hub.The symtoms are,everything works ok but the boat can rev but will have very little forward propulsion.If this is it,the prop needs to come off and taken to be rebushed.The bush stops major damage to the g/box if the prop strikes something.Hope this helps

Posted on Sep 07, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 4 Answers

CHECK YOU HAVE NOT SPUN YOU DRIVESHAFT SPLINE IN YOUR CRANK

Posted on Dec 16, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Mercury 1989 60 HP Outboard Motor manual to find gas to oil ratio


50:1 But if your doing mostly low rpm cruising (trolling) then you could reduce that a bit to 75:1 to help reduce smoke. If you do mostly mid to higher rpm cruising, then 50:1 (1 pint to 6 gallons. )
Or 200mls in 20 liters if your Canadian.

Feb 26, 2016 | Seloc Mercury Outboard Repair Manual, 1965...

1 Answer

I have a 1978 merc 85 hp outboard with a bad pump i purchased a used one that works mine has 4 hoses


Mercury Outboard Fuel Pump - Mercury Outboard Forums

forums.iboats.com/Mercury-Outboards/Fuel-Pump
5, 2004 Mercury 225 four-stroke EFI no power to Low Pressure fuel pump. Why please help · Mercury & Mariner Outboards. 13, Mercury 850 (85hp) - Gas pumps through the top carb - Failed fuel pump? ... 1, 1969 7.5 H.P. Mercury (Bad fuel Pump)? ... 1971 · 1972 · 1973 · 1974 · 1975 · 1976 · 1977 · 1978 · 1979 · 1980 · 1981 ...

Fuel Pump Diaphragm replacement Mercury outboard 110 ...

? 4:18
https://www.youtube.com/watch?v=vufekxTVZd8
Jun 22, 2012 - Uploaded by Brad Clark
My last test run of this motor lead me to believe I had fuel pumpissues...so in ... Mercury 9.8 h.p. 110 Outboard Motor WaterPump Repair and ...

How to remove the lower unit on a Mercury outboard motor ...




Dec 01, 2015 | Boating

1 Answer

Water got into the engine oil of my 8 hp 4 stroke when on the boat only as troller


Water gets in your engine through the exhaust with the boat speed! Lift that engine when not in use!

Oct 16, 2014 | Mercury Marine 8hp & 9.9hp 4 Stroke...

1 Answer

Suzuki outboard 8hp 1994, at higher speeds under loading prop appeared to cavitae, liek spun prop. repalced with new prop. On the bench, plugs removed, in forward gear hand turn prop thur haft turn and...


You may not be deep enough in the water and it really is cavitation.

May want to check the lower oil for metal as a Mostly worn out gear can do that

It's normal for a gearbox in forward to "click" in one direction and be firm against the motor when turning against the gears normal rotation.

Oct 10, 2012 | Light Boating

1 Answer

Water pump impeller change


There is another bolt up under the zinc plate on the cavitation plate.

Jun 04, 2010 | RTO Oar Sockets

1 Answer

What oil do i use in the lower unit of a 1989 90 hp mercury outbord


go to a marine store and get lower unit gear lube. it comes in a squeeze tune and just remove the plug and squirt it in . both screws need to be out tho upper one lets air out as you push new in lower .the put upper back in first keeping oil in till you put in lower plug

May 01, 2010 | Light Outboard Motor Boat Bass Fishing...

1 Answer

Merc outboard 115HP 1996 fuel primer/Choke


Hello there
here is a good place to start ok Outboard (wiring A Tachometer To An Outboard, Mercury Outboard Float) safe.gif
merc outboard motors mercury outboard ... diagram of mariner outboard motors johnson outboard fuel problems ... johnson outboard motors ebay 1996 115 hp mariner outboard
  • tipsterdatabase.com/mods.php?id=outboard
  • · Cached page

Aug 27, 2009 | Boating

1 Answer

Gear shifter for 40 h. p. mariner outboard


With your lower unit off have someone shift the engine into forward while watching the gear shift select shaft's rotation,let gearshift remain in forward,now place your lower unit in forward and reinstall. In the future just put engine in forward when installing a water pump as there won't be a need to move gearshift

Jul 23, 2009 | 2004 Mercury Mariner

Not finding what you are looking for?
RTO Outboard Motor Bass Fishing Boat Rod Reel Oil & Grease Logo

403 people viewed this question

Ask a Question

Usually answered in minutes!

Top RTO Fishing Experts

ray gallant

Level 3 Expert

45446 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

15743 Answers

Steve P
Steve P

Level 3 Expert

3497 Answers

Are you a RTO Fishing Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...