6 HP Evinrude lower bearing seal

[Tim Frank]

Just reassembling this gem after resealing gearcase and with powerhead separated from exhaust housing.

I am using mostly new components for the lower bearing seal assembly. Before I drop the powerhead back on I was looking at the seal in its place at top of driveshaft and wondered whether it would be a good idea to lube the cork washer that is the uppermost part.
Nothing in my OEM manual suggests this, but it is right there and it would be so easy right now....impossible after it is all back together.

Thoughts?

 

[racerone]

The cork gasket is what stops the stator for the seal from spinning.-----Not sure if lubricating that would be a good choice.----Perhaps a few dabs of gasket sealer is what you should use !

 

[Tim Frank]

Ahhhh.
Obviously did not understand how that worked. No lube for sure....thanks.


BTW....you may remember my concern about an extra piece as I was reassembling that seal.
It was , as you suggested, the old o-ring. It had hardened to the same feel as the plastic/carbon seal. The cross section appeared to be square....but it had just assumed that x-section from compression.
Under a strong magnifier you could definitely see a curved top.
Thanks for that one as well.

Should be running on the weekend.

 

[racerone]

These motors are so simple to me.

 

[F_R]

Actually, the cork should be glued to the seal plate with some kind of fuel-proof gasket sealer. The carbon-to-plate should also have a few drops of oil.

 

[Tim Frank]

Actually, the cork should be glued to the seal plate with some kind of fuel-proof gasket sealer. The carbon-to-plate should also have a few drops of oil.

@#$!!

The power-head is reinstalled.
Should I remove it and do the sealer and oil?

 

[F_R]

I'm sure a lot of them get put together without the sealer. It is there to prevent the seal plate from spinning on the gasket. It's up to you, I suppose. As for the oil, it Is to provide lubrication when you first start the motor. After that, it lubricates itself. So if you've run it, it's lubed.

 

[Tim Frank]

I'm sure a lot of them get put together without the sealer. It is there to prevent the seal plate from spinning on the gasket. It's up to you, I suppose. As for the oil, it Is to provide lubrication when you first start the motor. After that, it lubricates itself. So if you've run it, it's lubed.

It has not run yet, so I will R&R the power-head and do this right.
In your experience is the main gasket reusable?
Only been on for 24 hours and the motor has not run as I stated,.

I found another problem.
There is too much play between the throttle pinion gear and the throttle control gear. The gear will actually jump out of meshing contact.
The manual is a bit vague on dismantling this.

If I remove the screw and withdraw the short throttle shaft, will that gear have clearance to come out abnnd allow the control gear to come away also....or is there some serious dismantling that I am looking at?


I am suspecting that the throttle control gear bushing is really badly worn....but I will check before I order one....must be a really special bushing for that price....$30- +.


UPDATE....have the gears off....the bushing is worn but just the flat surface. I see no reason not to make some plastic shims....stacked to take up the slack. A small bit of tinkering should save me the cost of that bushing.

 

[F_R]

gasket should be ok.
Yeah, I've shimmed lots of gears with washers, etc.