Thrust, hp, and weight comparisons

[Charles Myers]

Thank you for your continuing help.

I agree about the pictures.  I tried making still photos, but just can’t get good images.  I don’t have a smartphone, so I will enlist the help of my son to make some movies when he is next in town.  Also, my wife and I are about to be away during the Thanksgiving period, so it likely will be some time after that when I can get the movies made.  Stand by.

Unfortunately, most shops today don’t want to touch Evinrudes.  Everything today is 4 stroke and the shops are not interested in touching vintage machines of any type.  Their reason is always the same: “We don’t want to get into it and find that it needs some unavailable parts.”  I would like to find someone to whom I can take the motor within about 200 miles from Richmond VA  – someone who really knows this motor.  I will call the presidents of the Carolinas chapter and the Chesapeake chapter to see if they know of anyone.

Again, stand by.  I appreciate all your help.

 

[fleetwin]

Sounds like a good plan indeed…I’m sure there is a club member, not too far from you, that can help….

Don’t worry about being away for awhile, just try to find this thread again and add to it…  Try not to start a new thread to avoid more confusion

[frankr]

Do you have the aomci membership directory?  There are 41 Virginia members listed in it, with addresses and phone numbers.  But I don’t see your name listed.  Perhaps you joined since the directory was printed?  If you send me a PM with your email address, I can scan the VA page and send it to you.

[Charles Myers]

An update for everyone.  Thanks to all who have posted advice.  To remind everyone, the problem was low speed at full throttle.  Through the club’s membership directory, I called the president of the Carolinas club chapter nearest to me (I live in Richmond VA).   He recommended another member at Smith Mountain Lake to look at the motor (1956 Evinrude Lark 30 HP).   I took the motor to him.  He did a complete refresh of the motor, including new seals and O-rings throughout, a new shift-rod bushing, a new impeller and impeller housing and impeller housing plate, a replacement flywheel (the puller threads stripped out of the old flywheel, and the flywheel had to be cut off),  removing and cleaning the carburetor, opening and cleaning the lower gear unit, sharpening and buffing the tips of the slow and fast carburetor needles, replacing the packing washers on the needles, replacing the sintered filter in the glass carburetor bowl, new copper core spark plug wires, new spark plugs, new coils, new points, and new condensers.   The gears in the lower unit are all good.  Did he find anything wrong?  One of the two bolts that hold the baffle in the exhaust chamber was loose and rattling around.  Under the flywheel on the port side there is an aluminum plate (photo) whose center  mounting hole had become worn and wallowed out.  That hole had an improvised large washer on the bottom side.  That washer was hitting something that prevented the armature plate from moving all the way to its stop at full throttle.  That was likely the cause of the low speed.  The plate has been replaced, and the armature now advances fully at full throttle.  When I went to pick the motor up to return it to the boat,  it was run in a water tank.  Once it is on the lake, normal tweaking of the slow and fast carburetor needles can be done.  I am looking forward to springtime to get the boat and motor back on the lake.  I will do an update post about how that goes.

While the pictured aluminum plate may have been the central culprit in the low speed problem, and while I did not set out to get a total refresh of the motor, I am vey happy it has been done.  It is confidence-building to know that all that has been done and that I can keep the 1956 motor married to the 1956 boat.

Thanks, again, for everyone’s input.

 

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