1976 Evinrude 25HP

[Daryk Campbell Sr]

Well, upon removal of the head, I found bad news.  

I can feel the scoring on the cylinder wall.  

Off to YouTube, I want to see what I may be getting into.  

Interestingly,  when removing the housing for the thermostat,  there were 3 10mm and the rest were 11mm bolts.  But for the cover over the head, they were 1/2" bolts.  

[fishinwrench]

Ouch !    

Somebody has been very mean to that little guy. 😔 

 

It could be saved, but it's going to cost over 1k in machine work & parts......Not to mention some TIME.   

I'd scrap it, part it out, and start shopping for another one.   

 

[Daryk Campbell Sr]

I appreciate the info.   Frankenstein isn't worth all that to me.   It was a gamble, luckily not too much was paid.   The search shall continue.   

[fishinwrench]

1 hour ago, Daryk Campbell Sr said:

 It was a gamble, luckily not too much was paid

You invested 200.00 

If the lower unit is good (no water in it, and not beat to hell).....it will bring 250.00-300.00 from someone needing one. 

You had strong spark so the ignition components are known to be good, and are worth another 350.00-400.00 easily.

There's always someone out there looking for a cowling....and willing to pay 100.00 for one. 

Did you say that it had an electric starter and associated brackets?   There's another 200.00 

The manual rope starter will sell also....100.00 easily.  

 

 

You gambled well !   😉

[gotmuddy]

14 hours ago, fishinwrench said:

Ouch !    

Somebody has been very mean to that little guy. 😔 

 

It could be saved, but it's going to cost over 1k in machine work & parts......Not to mention some TIME.   

I'd scrap it, part it out, and start shopping for another one.   

 

I agree.

[MrGiggles]

Those big gouges in the port opening are the deal breaker, it ate something. If those weren't there I'd say you could probably clean up the bore and throw a piston in it. 

If you enjoy the tinkering, I've seen a lot of good used powerheads on Ebay that aren't too expensive. If the rest of the motor checks out, being that it's got electric start and a clean title, it may be worth the investment. Or find a good running 25hp with no paperwork and steal the powerhead.

[Daryk Campbell Sr]

Update.   I bought a used power head from ebay.  I bought an Evinrude/Johnson flywheel removing kit as well.  I really like the name Frankenstein,  and wanted to bring him to life.  Now to beef up my transom.  

[Daryk Campbell Sr]

Frankenstein's replacement heart is ready for transplant.  I've acquired the proper removal kit.  It's new in packaging.  Any tips tricks or things I need to be considering before or during the swap?  Any worries with proper torque settings?

[BilletHead]

40 minutes ago, Daryk Campbell Sr said:

Frankenstein's replacement heart is ready for transplant.  I've acquired the proper removal kit.  It's new in packaging.  Any tips tricks or things I need to be considering before or during the swap?  Any worries with proper torque settings?

   Be careful Daryk get this done and Wrench will try to talk you into working in his shop!

[fishinwrench]

1 hour ago, Daryk Campbell Sr said:

Any worries with proper torque settings?

Every bolt/nut has a prescribed torque spec.  

I dunno how HEAVY HANDED or LIMP WRISTED you might be.....but personally I just do it by feel with a 3-step tightening sequence.  Beginning in the center....and working my way outward. 

Just make sure that your powerhead screws are free of any buildup.   Hit them with a wire brush and a shot of carb cleaner if there's any crud on those threads. 

 

Now is the time to overhaul the carburetor, put in a fresh fuel pump diaphragm, and refresh the water pump. 

Is the ignition timing indicator FIXED on the intake manifold, or is is adjustable? If adjustable it will need to be set to TDC. (TOP DEAD CENTER)