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TOPIC: '59 Evinrude Four Fifty Part ID Question

'59 Evinrude Four Fifty Part ID Question 2 years 3 months ago #123592

  • rdubyau
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My fatty has a lower end from a different year. Clutchdog replacement time. I have it apart and new clutchdog installed. I am having a hard time identifying the oring/seal that goes in the slot on top of the gear case shown in the picture.

Originally I had ID the lower end as a 1968 85 hp. The seal (307103) I bought for that unit is way to large for the recess on the gear case. Do I have the wrong lower end identification? Any ideas?

Thank you in advance.
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Re: '59 Evinrude Four Fifty Part ID Question 2 years 3 months ago #123597

  • ed-mc
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Take a look at this diagram of a 1960 Evinrude 75hp Starflite gearcase:

www.marineengine.com/parts/johnson-evinrude-parts.php?year=1960&hp=75&model=50522&manufacturer=Evinrude§ion=Starflite+Gear+Case

Part #92, 307103 O-ring, should be the one you need to fit in the groove. It helps to glue the gasket in using contact cement, some OMC sealer, or even Permatex #3 brush-on gasket dressing, which is sticky enough to hold the O-ring in place as you're assembling the gearcase halves.

Here's a few on eBay if you don't have an OMC dlr nearby:

www.ebay.com/dsc/Boat-Parts/26443/i.html?_sop=15&_from=R40&LH_TitleDesc=1&_vxp=mtr&_nkw=%28307103%2C+%2218-7428%22%29+-shrink

HTH..........ed

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Re: '59 Evinrude Four Fifty Part ID Question 2 years 3 months ago #123607

  • rdubyau
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Thanks Ed, I was going goofy looking at all the diagrams that I could think of. This creates a new issue. That diagram says it takes the same o-ring that I bought (307103), so now I question what I got. I do have questions asked of some of those same seller on what the diameter of the o-ring is.

The one I bought is way too big and might be a seller error but if not I'm hoping one of the sellers comes through. The propeller shaft bearing o'ring that I have is a great fit but not thick enough.
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Re:'59 Evinrude Four Fifty Part ID Question 2 years 3 months ago #123611

  • rdubyau
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The seller came through, although somewhat confusing. I chose the auction where there were 10 of 12 o-rings already sold. He couldn't explain what happened but like a good seller is shipping the right one today.

I didn't have any plans for the 1963 Glass Magic this weekend due to the abundance of drunks.

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