outboard rebuild???

C

catfish charlie

Seaman Apprentice
Joined
Sep 4, 2005
Messages
34
guys im going to try to rebuild my 79 merc. 140 . i can rebuild a car engine but never tackled a outboard before. is this rebuild with in reason for a newbie..what u think?? any special tools needed?
 
D

dakk1

Chief Petty Officer
Joined
Apr 22, 2003
Messages
418
Re: outboard rebuild???

If you can rebuild a car engine I think you can do an outboard. Definitely will need a manual. Lot of good folks here can help if you need it.<br /><br />Dave..
 
J

jheron

Petty Officer 1st Class
Joined
Jul 21, 2004
Messages
284
Re: outboard rebuild???

Piece of cake if it all comes appart and you already know your way around an engine :) Get yourself a flywheel puller (e-bay or make one at a machine shop)<br />For aftermarket parts (recomended for pistons and bearings) talk to Clams I got the best value from him.<br />I just rebuilt a 115 last winter, search my old posts and find where I describe an easy way to set the pistons with a beer can ... you will need beer :) :) <br />I have 63 hours on her so far and she runs strong and steady!<br />Jon
 
C

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,959
Re: outboard rebuild???

Charlie, The hardest part about the rebuild is the cleaning and adjustment of the carbs and the ignition timing. The rest is just nuts and bolts. The major difference between an automobile engine and the outboard is the bearings and the multiple carbs. Keep the pistons, bearings and connecting rod caps numbered and seperated(six numbered dixie cups). Stick the bearings to their cages with grease, when reassembling. Strip the block down and have the bad cylinders bored and lightly hone the rest. Scrub the block with soap and water, and oil it up after. Replace the rings on all honed cylinders, new pistons and rings for bored cylinders. I usually leave the flywheel center section on the crank, so I don't need a puller. Put new seals in the bottom crank endcap.
 
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