Old evinrude help

[Stumpjumper]

New prop a shop gave me that fits and “will work” PN: 379717

old prop PN: is worn down but looks like “9×10” “°38362°”

[Stumpjumper]

Picture of lower hopefully all of the photos finally went through I apologize if this was annoying I had to send all photos like this for them to fully upload

[Stumpjumper]

Bottom of the case I found another number my guess is part number for case

817308

[JACQUES]

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[JACQUES]

 

https://www.socalaomci.com/library/johnson_service_manual_10th_edition.pdf

book is not year specifc  but may help for  some servicing

 

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[Don]

Like I said, Gramps did some mixing and matching here.  I am guessing the engine got dropped, perhaps hit, and damaged the swivel hsg/stern brackets.  so a used assembly was installed off a newer engine.  The paint on the powerhead does look original, so I am thinking it is from a 1972 Johnson 20-25hp.  I say this because there are no external coil mounts on the cylinder head which means the engine has conventional magneto ignition.  1973 introduced the low tension ignition with the external coils.  So, the only year that anniversary gold color was used on the powerheads with standard magneto ignition was 1972.  The midsection/lower motor cover is the newer style, so that rules out the 1967-68 models I mentioned in my previous response.

[Stumpjumper]

Don wrote:

Like I said, Gramps did some mixing and matching here.  I am guessing the engine got dropped, perhaps hit, and damaged the swivel hsg/stern brackets.  so a used assembly was installed off a newer engine.  The paint on the powerhead does look original, so I am thinking it is from a 1972 Johnson 20-25hp.  I say this because there are no external coil mounts on the cylinder head which means the engine has conventional magneto ignition.  1973 introduced the low tension ignition with the external coils.  So, the only year that anniversary gold color was used on the powerheads with standard magneto ignition was 1972.  The midsection/lower motor cover is the newer style, so that rules out the 1967-68 models I mentioned in my previous response.

Thank you I really appreciate it. I think I read one of the previous questions wrong yesterday about the intake. I thought you were talking about the water intake for the cooling system. I believe you meant the intake cover which is just out of frame from the freeze plug on the engine. The part number on here is: 314816 the picture is a bit hard to read with the stamping light

 

[Don]

That number in your picture is just a casting number, meaningless to us unfortunately.  What parts do you need?  I think everything you need can be found using the 1972 20-25hp parts book.   We would have to determine what horsepower it is to get exact parts for the carburetor…But, the carb kit part number is the same for both.

Parts for that midsection/swivel bracket/transom clamps can be found using the model number stamped on the port stern clamp.

Again, what parts are you looking for?

[Stumpjumper]

Don wrote:

That number in your picture is just a casting number, meaningless to us unfortunately.  What parts do you need?  I think everything you need can be found using the 1972 20-25hp parts book.   We would have to determine what horsepower it is to get exact parts for the carburetor…But, the carb kit part number is the same for both.

Parts for that midsection/swivel bracket/transom clamps can be found using the model number stamped on the port stern clamp.

Again, what parts are you looking for?

As I am slowly tearing it apart I am finding exact parts I more was worried about getting the correct information to determine wha motor it is. Year, make, model, etc. I just got more worried when I look up part numbers and it all started coming back to several different motors which yes some parts are interchangeable but others are not. The freeze plug having the serial number would have been the only for sure route I could think of to determine the exact model and HP. As I’ve learned grandpa mixed and matched this motor and were the “25” decal stickers on this because of motor size restrictions or was it actually a 25. Not legal to do but not sure if it was done that way on purpose or did he paint over so the decal wasn’t showing.

In the end the freeze plug starting with “E35…” made me wonder if it’s really a evinrude 35hp

[Don]

Once again, the number on the round aluminum core plug is the serial number.  It would be very hard to match it up with an actual model number, most of those records are gone, along with the computer programs.   The “E” in the serial number means the engine was produced in the Milwaukee Evinrude plant, even though it is a Johnson.    The first two numbers of the serial number being 35 is purely coincidental.  OMC did not produce 35hp models like this until 1976, and I could easily tell if it was one of those just by looking at your pictures…

Use the 1972 Johnson 20-25hp parts book for most basic items.  If you can see through the decals/emblems on the cover, and you see “25” being mentioned, then it most likely it a 25hp….

[Author]

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