clueless as to what HP this is...read on

[almosttohavana]

I recently picked up a sailboat that has a merc O/B on it, and it has a 7.5 cover on it...then...I found a 9.something cover in what of the storage compartments. The serial is 7194460 ..Any help? I havent found this number anywhere.<br /><br />Also, This motor is electric start, but I know I cant get parts anymore so I am going to remove the components...which leaves me with cranking the bad boy.<br /><br />The (flywheel?) wont even budge. I have heard that I need to put some oil somewhere to get this guy turning, but no luck this morning. Please help.

 

[JB]

Re: clueless as to what HP this is...read on

Where did you get the idea that you can't get parts, Brian? Of course you can get parts.<br /><br />Someone will read your S# and tell us all what year and hp it is.<br /><br />I have seen many sail auxiliaries and fishing boat kickers lock up from extended lack of use in a marine environment.<br /><br />Remove the spark plugs and give each cylinder a shot of oil (I use penetrating oil on the guess that the freeze-up is simply a bit of cylinder wall corrosion). Give it a few days to soak, then try turning the flywheel by hand.<br /><br />No luck there? Tell us what has happened, then get yourself a service manual and tear her down (in that order).<br /><br />Start here for parts: http://www.boatmotors.com/parts/ <br /><br />Used parts can be found at Twin City Outboard.<br /><br />Good luck.

 

[almosttohavana]

Re: clueless as to what HP this is...read on

I most certainly will try and get some oil in the cylinder. <br /><br />When I try and turn the flywheel, should it be reletively easy? If I cannot turn the boat flywheel, what should I do next?<br /><br />Also, could someone please tell me what model/yr I have? <br /><br />much thanks.

 

[Chinewalker]

Re: clueless as to what HP this is...read on

Hi Brian,<br /> Are you trying to move the flywheel itself or are you trying to pull the recoil handle and it's not moving? There is a lock-out on later 7.5/9.8s the locks the recoil if you were to try to start the motor in gear. <br /> Are there any decals or stickers on the motor block that read "Comet"? It should have the word "Lightning" embossed on the block's starboard side - that designates it as an 11-cube block and is on both the 7.5 and 9.8 block. The "Comet" designation was for 7.5s only as they had smaller intake and exhaust ports.<br /> Your serial number falls into the Canadian serial number series (7-millions) so that's probably where the motor orignated. I don't have a Canadian serial number breakdown, so I can't nail the year for you. A pic of both motor covers might help, though. Do the decals on both covers match? Does one match the decals on the lower trim cover under the bottom cowl?<br /><br />- Scott

 

[AMD Rules]

Re: clueless as to what HP this is...read on

List I have shows that as a 7.5hp 1982

 

[almosttohavana]

Re: clueless as to what HP this is...read on

Thanks a bunch for the info so far.<br /><br />I have taken the recoil portion off, so I am just trying to move the flywheel by hand. I took off one of the spark plugs last night and lubed it up a bit, but tonight I plan on getting the other out and putting more non-penetrating oil in both. <br /><br />Mine does say "comet" on the block itself. Another name that has confused the crap out of me.<br /><br />Keep it coming. I really would like to get this motor running . Thanks for your help everyone.