Newbie 82 Johnson 115 V4 advice

Pheadrus

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I'm new to the forum and boat ownership in general and hoping for some advice on a potential boat purchase. I'm on a limited budget so older stuff is what I can afford.



The boat is a 1986 16 or 16.5 Edson Commander with trailer and a 1982 Johnson V4 115. The boat appears decent but paint is faded, seats are useable but I would likely redo in the future. The floor and transom seems solid based on my limited experience.



The trailer will need paint soon and I'd likely redo the bearings etc. but it seems solid.



I can get the whole setup for $1000CAD(about $750US) which seems pretty good.



He supposedly spent $300 getting it tuned up about a year ago. My concern is on the Port side cylinder bank it says 140 140 in felt marker and on the Starboard side it says 110 or 115 and 125. I assume this is what the compression was when the motor was tuned up. Obviously I'm concerned about the lowest but also 140 seems high for it's age and I thought the 115's were suppose to be around 125 new.



I've worked on classic and muscle cars for 30 years so I can do all my own work excluding machine work.



The trailer would be worth $300-400 by itself, the local boat place said the lower unit is worth $500 even if the powerhead is shot. He also put a $300 fish finder on it last year that comes with it. So even if the transom and powerhead are pooched, I likely would be able to recoup my investment. With $1000($750US) in the whole setup and being able to do my own work, is the 115 worth fixing the compression issue??


I have to make a quick decision because he has others wanting to buy it. He's 70 and the Edson is too much work for him. He has a 14 Lund he uses now.

Thanks.
 

racerone

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Those numbers for compression are a concern.-----Easy motors to rebuild and strong / smooth running once properly rebuilt !!
 

interalian

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You could probably re-ring and hone for about $500. Re-do the compression test yourself to be sure. Could even be a wonky head gasket on the one side.
 

Pheadrus

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Thanks guys. I figured maybe a head gasket with the low numbers both being on the same bank.

If the transom is solid, the 115 essential cost me nothing.

So it seems the 115 is definitely worth rebuilding with what I'll have into it. Being a car guy, I actually would enjoy rebuilding my first outboard. Better to cut my teeth on something older and easier to learn on. I'm up in northern Ontario, Canada so with it almost being August, I don't care if it sees water this year. I'd likely just use the winter to fix the motor and go over the boat to make sure it's ready for a drip in the drink next year.
 

Pheadrus

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The seller is 70 and can't handle a boat that size anymore. He has a 14" Lund he uses now. I've talked with him again about it today. He paid $300 to have it tuned up last year. That was when the compression test was done. His memory isn't great but he said he remembered the mechanic told him he shaved the head because it was warped and changed the gasket so I assume he meant the head gasket. I read a thread where a member said the old V4's were known for having different compression readings between banks right from the factory. The mechanic who did the tune-up is an older gentleman that has been working on outboards for decades.

The seller is holding the boat for me until we can talk with the mechanic but it appears the compression issue has been addressed. The motor seems to run and idle fine right now but I'm a newbie when it comes to boat motors. I'll do a compression test myself when he gets back from camp in a few days. Either way, the trailer and fish finder are worth $500-$600 so there's not much downside if the transom or motor are shot. The transom and floor felt solid tapping all over with a hammer and the motor seems solidly attached to the transom. I'm 240lbs and with my weight the floor felt solid. The motor runs fine and idles fine so I think it's worth the risk for $1000CAD. Unless you guys think the warped head is a red flag???


I called two local repair shops and they said the lower unit is worth $500 but it might take time to sell it. So worst case scenerio, if I have to part it out, I should be able to recoup my investment.
 
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interalian

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True about compression varying from bank to bank. Based on what you've said, doesn't sound like there's much of a downside whether it's good or not (parts). Let us know how it turns out.
 

Pheadrus

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That's the way I'm looking at it. I'm not going to pay a mechanic $200 for an inspection on a $1000 out lay. If I did and the motor and hull are pooched, I'm out $200 with nothing to show for it. If I just buy it and they have issues, I should be able to part it out and at least make my money back. Even if I got $800 back, I'd be in the same position as paying a mechnic the $200. $2000+ I would have it checked out.
He's out at camp for a few days so he said he would hold it for me until we can talk with the mechanic that fixed the compression issue and tuned it up. I'm going to recheck the compression as well. I should have an update and some pics by the weekend. Once again thanks to those who offered advice and knowledge.
 

Pheadrus

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Just outside Thunder Bay by Kakabeka Falls. Are you up north as well?
 

racerone

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No about 24 hrs away.------Did drive by Thunder Bay about a week ago.
 

interalian

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I knew some folk who lived there. Last time I was there was 1976. Been a while.
Cheers from another Canuck - prairie region.
 

jimmbo

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Agreed, nice to see another Canuck aboard. I'm about 2 1/2 hours north of interalian, where it does become the Great White North, for about 5 months a year. Would never guess it though, several days have been over 31 degrees. Oh well in 6 months it will be at least 60 degrees colder, for 3 months
 
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