1957 Evinrude Fastwin 18HP Hopeful Resurrection

[1946Zephyr]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

kfa, tsc and 46Z, Thanks for looking at this.

Here's a few pics of the motor resting on the top of the transom.

View attachment 128958View attachment 128957View attachment 128956View attachment 128959View attachment 128955

I haven't put the boat in the water so I don't know the where the water line will be. To me it looks like it could come up about 2".

I was working on the transom and thought it would be a great time to add any mods or maybe a homemade jack plate.

Your cavitation plate is about perfect, in relation to your keel. Is better to have a couple inches lower to prevent cavitating. After all, you have a short shaft motor and a short shaft transome.

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Spent several hours dressing the head. I forgot to take before pics, but here is the old gasket.


The head and top of the block were a mess with lots of junk and pitting. Used an aluminum block and some 220 that was laying round, went through about 30 sheets.

Question - there are still some very small / shallow pit marks ( marked with a red arrow ) ( that you can see if you blow this up) (Best to open in new window and then click on it):facepalm:

Should I keep going or are these surfaces clean enough? I swear I've taken a 1/32nd off total.



Head gasket and a few more misc. items ordered today from an Marina that is 30 miles from me, found them on Ebay. Also picked up 7mm wire, plug ends, a few small gaskets and a missing bolt. (Edit was here)

Is it me or does our host not seem to carry old OMC items like head gaskets? I keep trying to order from them but...

 

[HighTrim]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Copper core plug wire right? That is what is needed.

It looks like you are good from the pics.Was the head sanded down farily evenly as you went, or did you notice it taking off material from one end/area first before it started sanding evenly?

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Your cavitation plate is about perfect, in relation to your keel. Is better to have a couple inches lower to prevent cavitating. After all, you have a short shaft motor and a short shaft transome.

18" shaft - 15.5" transom, I'm still debating raising up 2". I saw a fixed plate that attaches to and rests on top of the transom. Couldn't find it to show right now.

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Copper core plug wire right? That is what is needed.

It looks like you are good from the pics.Was the head sanded down farily evenly as you went, or did you notice it taking off material from one end/area first before it started sanding evenly?

Copper.

The piston sleeves were crowned or rounded, sanding showed in the middle and worked towards the edges, everything else seems pretty flat and straight. I took a lot of material off the outer edge to get the piston sleeves straight and smooth. The head was very flat and straight, but still had pitting.

 

[tosoutherncars]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Yup, you're good to go!

 

[1946Zephyr]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

18" shaft - 15.5" transom, I'm still debating raising up 2". I saw a fixed plate that attaches to and rests on top of the transom. Couldn't find it to show right now.

Nahh, I wouldn't bother. It's all good. That transome was made for your length of motor.

That surface on your block and head look great! I would sinch it all back together and call it good.

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

My parts came in late last week, spent a little time last night and this morning looking at things.

I installed a lower housing to pilot shaft screw that was missing. Had to run a tap in the threads to clean them out. Looks like the bolts been missing for a long time. Then decided to put the head back on.

I had chased all the bolts holes with a tap and cleaned up all the bolts. Head went on real easy and set the bolts on the low end of the spec. Squirted in some PB Blaster and did a compression test.

My Milwaukee 1/2hp drill wouldn't spin the motor when under pressure, so I broke out the big gun.



Results top 75 bottom 85. I then torqued the bolts to the upper end of the spec. and retested. Results top 90 bottom 95.

Don't know if it was the additional torque or that the cylinders might have warmed up a little, but I'm pretty happy

On to the carb and ignition. Progress is slow and steady.

 

[kfa4303]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

You're getting there 64. It's not that uncommon to get varying compression numbers from an old engine, especially if it's cold, or hard to pull over by hand. Lots of folks will use the electric starter on their motors to get a good comp reading and/or wait until the motors been running awhile and is warmed up, but you're essentially doing the same thing with the drill. A squirt or two of some premix will help lube everything up nicely too. Great work. Keep us posted.

 

[jmendoza]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Replace those coils!

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

A little update, Got the magneto, new coils, breakers, condensers and plug wires back on, remounted the flywheel. Breakers at .020 maybe .021.

My one little headache is the new wires are a little unruly, they want to rub on the armature link and clip. The tension spring will slide on the wires and loose tension. The wires hit the clip and want to push it off. I'm thinking of putting a tie wrap on the wire to hold the spring in place.

Tore the carb down. Dry, stuck and crumbly seals are a pain to get out of the low and high needle openings. Lots of junk in the threads. Those dental pick tools really are nice for tight work. Taking my time cleaning and looking to get it back together in the next couple of days.

 

[kfa4303]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Awesome, 64osby. Sounds like you're getting there. I would just out a zip tie on those unruly spark plug wires just make sure you allow enough slack for them to rotate with the magneto plate. Just be nice and methodical with the carb and you'll get it. The more you look at them the more simple they become. Here are some handy links just in case you need them. Good luck.


http://www.outboard-boat-motor-repa...hnson 5.5 HP 1954-1964 Carburetor Tune-UP.htm

http://forums.iboats.com/showthread.php?t=167352

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Testing out new photobucket account and wanted to ask if this is the correct path for the plugs wires. This is how the wires were run when I picked up this motor. I saw a video "G's Garage" that was posted on a different thread, where he left the wires outside of the armature plate control lever. It seemed to me that his route is easier, but may lead to wear on the wires?

 

[kfa4303]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

That looks fine to me. My spark plug wires also run under the arm like yours, and I've never had a problem with them. Lookin' good

 

[samo_ott]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Looks normal to me.

 

[HighTrim]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

If you run the wires outside the speed control shaft, the spring will pull the wires against it, prematurely wearing the insulated coating. Your routing is better.

Off topic, it does look like you are missing a fuel line clamp on the filter though.

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

................Off topic, it does look like you are missing a fuel line clamp on the filter though.

HT - Good eyes. That was a pic of when I picked up the motor, my new wires are routed the same. Yes it was and still is missing a clamp.

I went to 3 hardware stores, 3 automotive stores and 1 outdoor power shop today looking for fuel line. Could not find the right size line. I was planning on replacing it today and adding clamps but no luck.

Fuel lines, trimming the plug wires and installing the contacts and caps and new gear lube, are all I have left on this beast. If I've done everything the right way. Time will tell.

 

[64osby]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

So after replacing the seals on the pressure tank line plug, I was able to try and test run my work.

It didn't run. Well only if I sprayed some mix in the carb. Took the carb off and inspected all the rebuild work. Blew air through it, checked the float, everything looked good. Stuck it back on, tried again and same result.

Tank has great pressure and runs a different motor, 90+ compression, good spark, breakers at .020, needles at 3/4 and 1 1/2 turns out.

I'm pretty sure I have a carb issue. What am I missing?

 

[oldybutagoody]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Hey Neighbor. I know this is a long shot but I had a similar problem with my '56 Fleetwin after rebuilding the carb, ignition, etc. It turned out to be a pinched fuel line where the line goes thru the hole in the bottom plate between the quick connector and the carb. you couldn't see it unless you looked under it. Is the filter bowl filling with fuel?

By the way, 'm working on this same motor (57 Fastwin) right now. Traded an old snowblower for it a few weeks ago. I'm just waiting on one more part (a prop seal) and I'll be attempting to get it running soon too.

 

[mercury250_0]

Re: 1957 Evinrude Fastwin 18HP Hopeful Resurrection

Spray some gas fuelmix directly into both cylinders and it should fire.You say compression is at 95??If thats correct then its pretty low.the compression dhould be at least 110 on that particular engine.Are you sure the compression gauge is accurate?aLSO MAKE SURE YOU HAVE GOOD SPARK.