Starting rebuild of 1969 Evinrude Fastwin 18hp 18902D using parts from FW 1968 16802M

[Berkeley]

I bought a 1969 fastwin 18hp 18902D a few months back and I recently overheated it pretty bad. Compression test failed and when I picked up a 1968 16802M for replacement parts I figured I'd take the opportunity to learn to rebuild these engines. Problem is, I'm pretty new to engine work (a little experience working on old diesels). I was very excited to find this forum and thank everyone in advance for my naive questions

I do have the schematics from ********** for both model engines and while there are clearly some differences in the design of certain components (particularly the carburetor) everything seems to be swappable. Am I missing anything really fundamental here?

My plan at the moment is to actually use the 1968 powerhead with the 1969 lower unit. From there, I want to use whichever component/spring/screw/etc is in better condition between the two engines to arrive at a working composite engine. I will continue to update this thread as I encounter success or failures.

So the first mystery...what is the easiest way to remove the powerhead?

 

[kodibass]

Re: Starting rebuild of 1969 Evinrude Fastwin 18hp 18902D using parts from FW 1968 16

Your first task is to get a manual for your motor/s your local library most likely will have one. this will be a must have item for a rebuild. torque specs, clearances etc. next a good digital camera take lots of vids/photos of the dis-assembly. I like to clean everything good first and put penetrating oil on the powerhead, lower unit bolts etc. and let set a few days prior to starting a rebuild. do you know the history of the 68? you need to make sure you have a good base cylinder-block to rebuild?.

 

[StormDK]

Re: Starting rebuild of 1969 Evinrude Fastwin 18hp 18902D using parts from FW 1968 16

Hi and good luck with your project. Maybe this link could be handy.

Boatinfo - The library, containing manuals, brochures and other technical documents from the last hundred years!

I am also going to restore an 18 hp Fastwin but a 66.

 

[boobie]

Re: Starting rebuild of 1969 Evinrude Fastwin 18hp 18902D using parts from FW 1968 16

Berkeley, You have a PM.

 

[kfa4303]

Re: Starting rebuild of 1969 Evinrude Fastwin 18hp 18902D using parts from FW 1968 16

Here are some handy links for you motor as well. You can get most routine, consumable parts right here at iboats. Check ebay, marinengine.com, and/or aomci.org for larger, harde to find parts. Good luck. Holler if you get stuck. We love pics

Maintaining Johnson E & FD Serie

1969 Evinrude 18902D 18 hp Outboard Motor Parts