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Mate
Posts: 3
Registered: ‎02-14-2013

'67 lightwin 3. Grease seal?

My little motor is leaking grease from where the top body meets the stationary body
Sorry for the incorrect terminology.. In other words, at the housing that clamps
To the transom, that does not turn, and the bottom of the engine case (that turns), grease is oozing out.

I have some old scans of the manual and am not seeing a seal there. Is it possably that the seal on the gear case is bad and it's pulling grease up the driveshaft, or by water displacement? Would this be a seal that gets replaced with the water pump?

Part numbers would be great appreciated! Thanks!!
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Admiral
Posts: 9,376
Registered: ‎07-14-2011

Re: '67 lightwin 3. Grease seal?

Where the part of the engine turns, there is no seal. Some models may have an oring at each end. Keep the area greased to prevent stiffness or any salt water corrosion so the motor continues to turn freely.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Highlighted
Mate
Posts: 3
Registered: ‎02-14-2013

Re: '67 lightwin 3. Grease seal?

Highlighted
Admiral
Posts: 9,376
Registered: ‎07-14-2011

Re: '67 lightwin 3. Grease seal?

The photos helped a bunch.

 

It appears that exhaust is seeping out of the engine to mid-section gasket leaving the oily residue to drip down the housing. Replace both the powrhead gasket and the mid-section gasket. You will probably find that the bolts are not very tight. That often happens if the motor has overheated in the past and that dries out and shrinks the gasket material.

 

Other than the leakage, from what I can see the motor looks like it is in mint condition.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Highlighted
Mate
Posts: 3
Registered: ‎02-14-2013

Re: '67 lightwin 3. Grease seal?

Ok so let's see if we are on the same page:
Since the unit is 46 years old & I have no history on it, & it has to come appart anyway, I'm going to replace the water pump.
For grease to be coming out of the body the gear case seals are probably worn out so I'll replace those as well. I do not see any gaskets or o rings of the mid housing so those will be a make them or match them up kind of deal? I'm going out to the shop to tear it apart now...

Again, thanks for the help& can you provide part numbers or a parts website?
Highlighted
Admiral
Posts: 9,376
Registered: ‎07-14-2011

Re: '67 lightwin 3. Grease seal?

You can use the parts list found on on www.evinrude.com . It only goes back to 1968 but the parts should be the same.

 

that black grease looks more that oily exhaust residue coming out of that gasket than anything out of your gearcase seals (which would not get up that high on the motor anyway)

 

Good thinking about changing the water pump, use the whole kit. Also change the gear oil in the lower unit to see if there are any metal chips or water in it.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.