New Project with Johnson CD-13 and QD-22

[Evinrude 25]

Hello,

Summer coming and see many sales of outboard on the market which I could not hold off my temptation! Just pick up two of them. 1961 QD-22 and 1956 CD-13 sat for many years collecting dust. CD-13 got seized!

For QD-22, it has the spark so I put some gas in the cylinders and it pops. Hooking up to the gas tank, it runs very nice, pump water and idle low. So much in love with these oldie!

For CD-13, I put some mixing fluid (ATF fluid and paint thinner) on the cylinder and let it sit overnight. It does not turn over, I remove the intake and pour fluid into the crankshaft. I patiently turn the flywheel back and forth for awhile and bingo, some moves! I do the cylinder compression test (Top 70 psi, Bottom 88 psi). It not even compression! Should I tear apart and hone the cylinders? or to make it run as it now? I did not do the spark test yet but the ignition parts is new. Someone has turned up in the past with new style coil.

 

 

 

 

[Evinrude 25]

Question, I see some outboards has the X black mark on the flywheel. What did the mechanic mark it for???

[lindy46]

Both engines will probably need new water pump impellers. Also check the gearcase oil for water intrusion. If no water, fill them with marine gearcase oil. If you see water, seals may need replacing. I’d let the CD soak some more and recheck compression. Compression isn’t bad, just a little uneven. May even out with running. You may want to pull the exhaust cover and check the pistons/rings.

 

[Anonymous]

Check out this guideline for reviving an outboard.

http://precisionservoutboard.com/about/arts-five-point-plan/

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Evinrude 25

[fleetwin]

Well, I guess I would pull the head on the CD to inspect the cylinders.  Perhaps the rings are stuck, or perhaps the cylinders are rusted.  Don’t be afraid to clean up the cylinders with some fine emery cloth, then blow the dust out with compressed air.  There is no easy was to have a look at the piston rings/skirts on this engine, it does not have removeable intake bypass covers.  Try loosening the exhaust cover screws, remove the cover if the screws will come out without a fight, then you can have a better look at the pistons and rings.

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Evinrude 25

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