5.5 sea horse engine isses

[bailer52]

i recently aquired a 1954 5.5 cd-10 sea horse. i started inspecting it more carefully (i picked it up at an auction) and found that there may be issues with a connecting rod. are there parts still available for this type of repair or will i have to look into finding another engine to salvage parts from? where all can i look to find parts and catalogs/manuals for this outboard? also, is there any what to run the engine if the OE tank isnt available?

 

[HighTrim]

Re: 5.5 sea horse engine isses

Nice motor.

What leads you to believe the connecting rod is shot??

Parts for this are still readily available, most of them right here at iboats.

PM me with your email address and I can help with some literature.

You could either post a wanted ad at aomci.org for an original pressure tank, check fleabay (although they are expensive on there), or you could convert it to run on a fuel pump. All options are fairly easy. I have 30 or so pressure tanks that I have collected over the years. If you wait until I die my wife will give you a great deal on them. Here is a link if you decide to go the fuel pump way.

http://www.outboard-boat-motor-repair.com/Johnson/Pressureized Fuel Tanks.htm

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

 

[samo_ott]

Re: 5.5 sea horse engine isses

I concur. How do you know there's a con rod issue? That's a) rare and b) hard to determine.

 

[bailer52]

Re: 5.5 sea horse engine isses

pulled the plugs to check for compression on both cyleders and could see the piston not moving as i turned the flywheel. i'm a mechanic by trade, so out of normal curiosity prior to starting any small engine i check to see how "opperative" it might be.

 

[samo_ott]

Re: 5.5 sea horse engine isses

Oh. That's pretty major. If you're turning the flywheel and one piston is moving and not the other you're gonna have to strip the entire thing down. Or find a used power head (probably a lot easier and cheaper)

 

[bailer52]

Re: 5.5 sea horse engine isses

well, if it is rare, then what other issues would cause a piston to not cycle when the crank is turned? perhaps i am missing something seeing as how this is indeed my first outboard.

 

[bailer52]

Re: 5.5 sea horse engine isses

thanks steve, so now my question is how "bad" is it if only the one piston moves? like i said, i suspect issues with a con rod. if the crank and cyl walls look good or simply need a light honing there shouldnt be much trouble correct?

 

[tx1961whaler]

Re: 5.5 sea horse engine isses

You will really not know how bad it is without taking off the power head. Could be a broken connecting rod, rod bolts, wrist pin, piston, any and all of the above. And the crank may or may not be ruined.

 

[HighTrim]

Re: 5.5 sea horse engine isses

Yeah the only real way to find out what is going on is to open her up. Since you're a mechanic rebuilding this little guy will be a piece of cake. For others I reccomend simpy swapping powerheads as Steve mentioned, quick and easy and cheaper.

You have to pull the powerhead anyways to do the waterpump, so while she is off have a look see. Let us know what you find.

 

[bailer52]

Re: 5.5 sea horse engine isses

thanks alot guys, i really appreciate it. are there any lil things i need to look for as i take this apart?

 

[bailer52]

Re: 5.5 sea horse engine isses

oh, forgot, what do i need to know about the water pump? i have never rebuilt an outboard, nor do i have a manual or simple expoded view of it. any where i can download or find a copy of a manual?

 

[nwcove]

Re: 5.5 sea horse engine isses

marineengine.com for part numbers and an exploded view. do a search on youtube for a good video of the water pump job.

 

[samo_ott]

Re: 5.5 sea horse engine isses

I have the parts manual for it. If you PM me your email address and model # I can send it.

 

[Steve A W]

Re: 5.5 sea horse engine isses

Bailer52
Here's some good reading about OMC [Johnson/Evinrude} motors;

http://www.duckworksmagazine.com/07/columns/max/articles.htm

The CD models are some great motors. Easy to work on, readily availible parts.
Good Luck with it.
Steve A W

 

[bailer52]

Re: 5.5 sea horse engine isses

Curious,where can I start an archive for photos as I disassemble my project?

 

[HighTrim]

Re: 5.5 sea horse engine isses

www.photobucket.com

 

[bailer52]

Re: 5.5 sea horse engine isses

Yep, need a whole piston rod n ring assembly, any help locating that? I've did a lil looking and haven't located anything yet.

 

[HighTrim]

Re: 5.5 sea horse engine isses

Where are you from? You can try a salvage yard listed in the FAQs for the connecting rod, Sea Way Marine for the rings. DO you have any pics of your motor? Would love to see what happened.

PM me with your email address, I may be able to help myself.

 

[bailer52]

Re: 5.5 sea horse engine isses

Edit: Please send your email addy via Private Message. Thanks.

 

[jmendoza]

Re: 5.5 sea horse engine isses

Hello,
on this model, remove the powerhead first to gain access to the shift rod coupler, and disconnect it, then the lower unit/gearcase assembly can be un-bolted and removed with drive shaft. Then the water pump housing bolts (4) are removed with housing and seal to expose the impeller, and stainless steel wear plate.