50 hp Evinrude drive shaft seal question...

[cjbrill715]

I have a 1984 50 hp Evinrude that i'm currently doing a complete re-seal in the lower unit on, and what i'm wondering about is the Sierra kit. The upper shaft/ drive shaft that goes to the powerhead has a housing just above the bearing that has 2 shaft seals back to back, one is green colored, the other is plain/uncoated metal. They appear to be the same size, just wondering why one is colored and the other not??

 

[Boobie]

Manufacturing process. Both the same.

 

[timguy]

I put the coated seal out towards the water, uncoated towards the bearing, but sometimes don't see this.

 

[racerone]

cjb----Examine these seals closely.-----Are they EXACTLY the same or not ???----Most know that the lower units 2 cylinder / 3 cylinder / 4 cylinder / 6 cylinder used 2 identical seals in the early years.-----Then the seal directly below the water pump was changed.----The rubber portion was slightly proud of the metal portion.----Look the same and same dimension for shaft and bore but a different seal !

 

[cjbrill715]

cjb----Examine these seals closely.-----Are they EXACTLY the same or not ???----Most know that the lower units 2 cylinder / 3 cylinder / 4 cylinder / 6 cylinder used 2 identical seals in the early years.-----Then the seal directly below the water pump was changed.----The rubber portion was slightly proud of the metal portion.----Look the same and same dimension for shaft and bore but a different seal ![/QUOTE

I have already assembled it...it was something I thought of afterword unfortunately. However, in the schematic/part diagram for this particular motor, both seals were the same part number....does that mean they are the same?

 

[Boobie]

IMHO, If you have it all put together, run it !!

 

[timguy]

They should be the same, but different manufacturers or perhaps even just another manufacturing run. I really believe they will serve the same purpose.