Evinrude Mate 2

[need2bike]

Hey, I’m pretty new to boating and outboard engines. I have a 1973 Evinrude 2302 Mate 2. It was free and I have no idea when it ran last. It was seized so I’ve subsequently taken it apart…except for the two pieces that were seized together: the bearing housing assembly and the crankshaft. I’ve tried to lubricate it, I’ve tapped it lightly with a hammer, and I really don’t know whether the struggle to get them apart is worth it meaning will either part still be useable if I separate them. My rough calculation to replace most of the gaskets, the lower unit seals and impeller, upper crankshaft seal, and piston rings is about $150. New used crankshaft and bearing housing would be another $100 plus. I guess I’m asking have others had this problem with those two seized parts and did anyone have success? If I decide I’m better off to sell the parts than rebuild is there a market for these parts? Maybe I also need encouragement to just throw caution and cash to the wind and try to resurrect it. The schematics on Boats.net “crankshaft and piston diagram” parts are 10 and 16 that can not be separated.

Thanks

[JOSEPH BRINCAT]

I looked at the parts diagram, 10 is the crankshaft, 16 the lower crankcase bearing housing. If all were OK these parts should just slide apart. Since yours are apparently very stuck, I suspect serious rust issues exist. The bearings and crankshaft will be ruined and not salvageable. There should be visible evidence of rust and corrosion, is there?

Joe B

[Sam M.]

Here are three thoughts:

1. You can make your own gaskets by cutting them out of gasket paper with the help of hollow punches.  Depending on how many gaskets you need, this could be a cheaper option than buying pre-made gaskets.
2. I don’t know what lubricants you’re using so you may already know this but specific oils (called penetrating oils) are made for separating seized parts.
3. Unless there is something obviously wrong with the current piston rings, they can probably be reused to save you some money.

[Waunnaboat]

Honestly if you have no sentimental attatchment, it is not worth spending that much, unless you want a big project.  I’ve seen them for sale for under 50 bucks a few times at yard sales, and you may want to spend your time on an easier and more rewarding project.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

[JACQUES]

a nice JW 3hp or 4hp  2 cyl.  kicker engines are better …..  easy to work on…..  simple magneto lots of info  see Leroy’s

https://www.leeroysramblings.com/

lots of utubes to help out  always check compression before spending big$$$

the 6hp fisherman are also great little kicker  with a bit more push .

 

stick to J&E    Merc are a bit more tricky

 

Joining AOMCI has priviledges 🙂

[Don]

https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1973&hp=2&model=2302B&manufacturer=Evinrude&section=CRANKSHAFT+AND+PISTON

OK, so you are saying that the crankshaft is seized into the lower bearing/seal assembly?  Were you able to remove the four retaining bolts for the lower seal housing?   Did you remove the piston/rod?  If so, that crankshaft will just push out of the bottom of the crankcase taking the lower bearing assembly with it.  It might be best to place the block in a press to drive the crank/lower bearing housing out of the block.  Once out of the block, you can flip the crank/bearing housing upside down, put it back in the press, using a simple spacer sunk/bottomed into the crank splines protruding out the seal housing to separate the crank from the seal housing.

Unfortunately, I’m guessing neither of those two parts will be much good.  Going much further with this project seems like a questionable endeavor unless you just want to enjoy resurrecting one of these engines.  What condition is the rest of the engine in?  Fresh or salt water use?  The critical piece on this thing is the darn steel fuel tank.  You are pretty much SOL if the tank is rusted/fouled, although I have converted one of these engines to the newer style with the plastic tank.

The best bet here would be finding another 2hp with a decent powerhead, but they are getting more rare and folks seem to think these things are “gold” they way they price them.  Just keep looking on CL/FB, something will turn up for a reasonable price.

Keep in mind that these engines have no oring on the upper driveshaft to protect the splines, so worn/rusted splines are common.  The best powerhead on earth is useless if the crank splines are rusted/worn/spum out.

[Don]

I just posted a long response to this, tried to update/correct a little grammar, then repost, seemed like it disappeared.  Hoping it will magically reappear….  Many things to consider here..

[Tubs]

Don wrote:

I just posted a long response to this, tried to update/correct a little grammar, then repost, seemed like it disappeared.  Hoping it will magically reappear….  Many things to consider here..

How many links.? I believe 2 are safe. 3 maybe one time. If you try to make a correction it thinks its spam being re-posted. Then it goes into quarantine until someone releases it. This is my best guess as far as my experience.  

 

 

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Don]

Tubs wrote:

Don wrote:

I just posted a long response to this, tried to update/correct a little grammar, then repost, seemed like it disappeared.  Hoping it will magically reappear….  Many things to consider here..

How many links.? I believe 2 are safe. 3 maybe one time. If you try to make a correction it thinks its spam being re-posted. Then it goes into quarantine until someone releases it. This is my best guess as far as my experience.  

 

 

OK, so it will reappear after someone approves it then?

[Don]

Just had one link in the response to marineengine.com.  It posted fine the first time, disappeared after I edited it to correct spelling/punctuation..

[Author]

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