Re: Old Evinrude Sportsman motor
Hey Guys,
It started today! I tore the carburator apart with the data pages and replaced gaskets with hand cut gasket material, cleaned gobs of crud and spiderwebs out. The inner throttle butterfly was stuck, broke the arm off it trying to free it. Finally got it apart and machined a new key on the end to fit the arm and silver soldered it (jewelry grade hard solder). Everything went together according to the plan (thanks to outboardbooks.com and the tip that lead me there (tashasdaddy)).
Yesterday I tore into the motor, points looked ok and the coils (plastic) beeped out good. Couldn't get the flywheel off so took it to the local garage for a wheel puller, $5/5min., cool. Removed the timing plate and took the cylinder head off to check the piston and all. Cleaned everything with carb cleaner (strong stuff!). The paint came off the outer cylinder head, oh well, good paint remover. I used the same head gasket as it's harder grade than the paper stuff I got, seems OK though. I pulled the bottom gearbox off to get the grit out of the swivel, but the pump screws wouldn't budge. Drained a bunch of black tar out of the gear box, diluting with WD40 until it drained clean and replaced with 90 weight as per the manual (90 wt., not the WD40).
"If it moves and shouldn't use duck tape, if it doesn't move and should, use WD40." (anon)
So I put it all back together and dumped gas mix (5oz/gal) in the tank, put it in my makeshift water tank (2 ladders and an old mahogany plank plus a tank from the old cooler in the barn with a 1 hole stopper plugged with a drill bit). I opened up the fuel valve and gas came gushing out the valve, shut it off. Call it a day.
This morning I pulled the motor from the tank and laid it down, removed the fuel valve. The gasket seal was shreaded and falling apart. I cut a piece of leather to fit and put it back together, works fine.
Back at the tank I opened the valve and pulled a couple times and it STARTED!!! it only ran a couple seconds and died, but it's firing. I turned off the choke and tried again and it ran awhile and died. It would only run in the start position for a little while then die. I pulled the motor again and changed the throttle linkage to the outer hole and it worked better, but still dies out.
I think the problem may be dirty gas as I didn't flush the tank but that's next. Probably need to reclean the carb, oh well. But it runs!!
Thanks All,
Dan
PS. JBJ the new computer chips are still impossible to figure out. This old beast is cool. The motor was free but the manual ran $50, well worth it. It's a revised edition 1956, amazing they still have it.
