1972 Slickcraft with OMC stringer

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oldsub86

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withtruckinNF.jpg


OK, if I did the correctly, you folks should see the photo above.

I acquired this boat and trailer in September 2008.

It has some issues which I will go into further below as I have some questions to pose to you folks.

Legfromleft.jpg


Engine.jpg


The boat and trailer were given to us by friends who have owned it since new. It has been well cared for. Always parked in a boat house and serviced by marinas. The hull appears to be good and the interior is in good condition and usable as is.

The trailer needs new wheels and tires, and in my opinon brakes, as it has none.

The engine has issues. The story as told to me, and I know no more than this at the moment but might be able to find out more information come spring when I can go to the marina that was involved, is essentially as follows. The motor was removed and "rebuilt" about 3 summers back at a cost of about $3K. It then appeared to be alright. 2 summers back it suffered problems. The owners were 15 or 20 miles from home when it started losing power and then oil pressure. They shut down and came in on the auxiliary engine. It has been looked at by a couple of marinas that have suggested a bad connecting rod but have not dismantled the engine.

It does have a bad sound when one cranks it over. We did so this fall to distribute anti-freeze that we poured in through the hoses in an effort to prevent any further trouble. I am not sure I can describe the sound but it is a deep noise and not a click.

In any event, I consider myself to be a fairly decent amateur mechanic. My brother in law is a mechanic and my 20 year old son is part way through training to be a mechanic so between us, we have no qualms about removing and dismantling the engine. Obviously, what we find may well dictate whether this engine is repaired or we look for a replacement.

I guess I did not say, but it is a 225 HP so the book says that will be a Chevy or GMC 307 cid. The hour meter in the dash says the boat has close to 800 hours on it.

I guess my bigger concern is the stringer outdrive. I have not been told that it currently has any issues but my reading indicates it is quite obsolete and parts may be getting harder to comeby.

I do not want to put a whole lot of money into the engine and then end up having to swap the whole setup in a year or two. I don't mind spending some money on it given that it is a nice boat and my initial investment is zero. I do not want to put lots more into it than it would be worth in good running shape.

Selling it and buying something else is not an option. The folks who gave it to us did so on the understanding that we would repair it and I have every intention of doing so.

I am aware that changing out the drive to something more modern likely means swapping to a Merc and that means repairing the transom for a smaller mounting hole. The only thing about that that concerns me is the gel coat as I don't know as though I want to paint the hull. I assume someone could color match reasonably.

I also assume there might be significant issues to redo steering, shifter controls and electrical for the panel etc. So a fair amount of time invested to do it.

So, what would you do? Would you fix and hope to keep the stringer running for a few years? Would you abandon that and swap to something else now?

I have no experience to amount to anything with stern drives. Pretty much all of my experience is with outboard motors.

Are the older Mercs obsolete too? For example, right now, I can buy a 1975 24 foot boat with a V8 Ford and Merc drive on a trailer advertised locally for about $1500. Unfortunately, given the time of year, I cannot test it first but it appears to be intact. I could junk the boat, sell the tandom trailer and essentially have the whole drive train with the steering and controls, etc. for very little ultimate outlay.

So tell me what you think.

Randy
 

WizeOne

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Re: 1972 Slickcraft with OMC stringer

A tall order to address all your questions. OMC stringers, as you will undoubtedly find out, are not a preferred drive around here. Some good reasons and some not at all. First and foremost, they are out of business and good techs are getting hard to find. Parts are really not that big an issue.

To switch to another brand of drive would be prohibitive. The only practical way to do it would be to get a donor boat with a complete engine and outdrive assy. Then you would still face modifying the hull. Tons of work, IMHO.

If you like the boat, I would address the engine, check out the outdrive and run the snot out of it. You should be able to get a reasonable reman engine for a heck of a lot less than 3K. If you are into engine rebuilding, depending on the damage, you might even fix the one you have for a lot less.

Oh, and btw, next time you add pics, use the 640x480 size option, in the little box right below the upload box. It will save us from having to scroll to see your whole picture and to read all the text.

http://forums.iboats.com/showthread.php?t=193245
 

chiefalen

Captain
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May 18, 2008
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3,598
Re: 1972 Slickcraft with OMC stringer

If this was a mid 80' stringer i would say keep it. 72' is the worst of the worst.

And maybe a bad motor also.

I would give it back to them. Sorry might not be what you want to hear.

But you asked what we think.

Now concerning over paying for that merc. 75'.

Don't do it.

For 1500 dollars you can get a 86-89 boat no problem.

And no OMC please.
 

twostroke87

Petty Officer 2nd Class
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Nov 15, 2008
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137
Re: 1972 Slickcraft with OMC stringer

The short list.

You will spend alot of money putting this boat back on the water in decent running condition, and more money to keep it that way.

You will be stuck doing most of the work yourself because most decent marinas/techs do not work on equipment that old. OMC manuels? I don't know if you read one yet but I'll give you an idea. "directions on removing intermediate housing"

Step one.
Remove drive

Step two.
remove intermediate housing

You will find parts are hard to come by, lucky if you can get a part remanned, most of the time you will be hunting.

OMC Stringer drives are notorious for getting water in the gearcase, and that looks like alot of rust for something that should definetly be case aluminum.

If the people who you got it from wanted it fixed so badly, why didn't they do it themselves? Maybe they didn't want to waste their hard earned money?

So they guilt tripped you into spending yours?

Give it back, even if you get an obsolete merc, there are a heck of alot more obsolete mercs out there than OMC's to pick from.
 

dan t.

Lieutenant Junior Grade
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1,131
Re: 1972 Slickcraft with OMC stringer

that looks like a electric shift stringer, stay away! next thing, get a small hammer and start tapping the stringers,dull thud means ROT, stay away! raw water cooled manifolds that age,probably rotten too,stay away
 

twostroke87

Petty Officer 2nd Class
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Re: 1972 Slickcraft with OMC stringer

Oh jesus electric shift, I've heard horror storys about how they can get water inside them, and then by themselves kick into gear and ram into docks and other boats.

Run away
 

Howard Sterndrive

Rear Admiral
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Re: 1972 Slickcraft with OMC stringer

An old OMC stringer drive like that needs to be owned by someone who loves to twist wrenches and gather spares. They can provide good service but you have to be ready for a breakdown (i.e. have a spare drive). The fact that there is a kicker motor helps :)
I love the old Slickcrafts. If checks of hull and stringers/floor/foam etc reveal no structural issues, could be a good candidate for a glassing in of the transom and doing a complete repower to more modern drive system.
That option requires commitment and a bag of cash, but the used OMC parts can fetch a bit of money to offset.
Could go either way. For a cottage boat that stays on a trailer or lift, I might just drop in a 350 crate long block (swap cam and core plugs to marine) and fix up the OMC. If I was heading out for week long trips, or going offshore, I would repower it.
They were well built boats, usually low on frills, and fairly light for the time period but with all mahogany stringers and subframes and other good quality materials.
 

Lyndy

Chief Petty Officer
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Messages
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Re: 1972 Slickcraft with OMC stringer

One thing not mentioned yet is the shape of the Boot. The round shape of it indicates a Boat/Sterndrive 2-3 years older, Yes?
 

Lyndy

Chief Petty Officer
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Re: 1972 Slickcraft with OMC stringer

One thing not mentioned yet is the shape of the Boot. The round shape of it indicates a Boat/Sterndrive 2-3 years older, Yes?

Oooops. Looks like the Round Boot ended in 1971.

1971 Boots:

71boots.gif
 

chiefalen

Captain
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Re: 1972 Slickcraft with OMC stringer

You know what if your very, very serious about restoring this boat nothing we say will change your mind.

And if you don't mind the sweat, and the tears, find a cheap donor boat.

Mid 80's stringer from 83-86 and take the entire power plant steering everything and transplant it to this boat.

And there are plenty cheap ones out there.

Bet you can get one for under 500 bucks.

But to my eye the out drive is shot, the intermediate is shot for sure.

You wouldn't have to take the drive apart just remove the engine, and in 2 pieces first install the intermediate with the bell housing and out drive first, than the motor.

That way you don't have to pull the shift cable.

And sell if you can on e-bay the drive.

But the hole would have to be enlarged.
 

Howard Sterndrive

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Re: 1972 Slickcraft with OMC stringer

Mid 80's stringer from 83-86 and take the entire power plant steering everything and transplant it to this boat.

....

But the hole would have to be enlarged.


my first thought was just that as well chef, and it still a possibility, but
unfortunately, that slickcraft has a high profile drive, and therefore has a 4" longer leg than the 78-85 stringer drives which were all low profile, so he would still have to do some transom mods to go that route.
 

chiefalen

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Re: 1972 Slickcraft with OMC stringer

I thought about about that Howard after i posted.

Was gonna come back and edit the post.

Kids had to get dressed and on the bus.

You know there does come a time when a boat just can't be fixed.

When it has to go to the great boat junk yard in the sky.

To a better place. One without worry, one without, gasp i can hardly bring myself to say it, WATER.

Shall we all have a moment of silence.

To mourn the loss, a great loss, of a great boat.
 

Bondo

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Re: 1972 Slickcraft with OMC stringer

Are the older Mercs obsolete too? For example, right now, I can buy a 1975 24 foot boat with a V8 Ford and Merc drive on a trailer advertised locally for about $1500. Unfortunately, given the time of year, I cannot test it first but it appears to be intact. I could junk the boat, sell the tandom trailer and essentially have the whole drive train with the steering and controls, etc. for very little ultimate outlay.

Nope,... The exception would be old Ford powered Mercruisers...

Old Mercruisers are 1 way to go.....

I've done a few of these Refittings,....
But, I'd spent enough money to get into Atleast an Alpha 1 drive(1983 or newer),+ Chevy V8 power....
 

oldsub86

Petty Officer 1st Class
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Re: 1972 Slickcraft with OMC stringer

OK, thanks a lot for the input guys. Keep it coming if anyone has more ideas.

So far, the gist appears to be that the old stringers are not wonderful but can likely be kept running if one is prepared to tinker a bit and parts are for the most part still available.

If I decide to swap in something newer, I should look for a Mercruiser that is newer than 1983 with a Chevy V8.

There might be some means of swapping in a newer OMC version but there is an issue with the profile. I did not quite follow that so please clarify. The leg on the old one is longer? Does that mean a newer OMC would have to sit lower on the transom?

Any thoughts on Volvo if that should show up available?

Randy
 

oldsub86

Petty Officer 1st Class
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Re: 1972 Slickcraft with OMC stringer

Anyone with ideas on the cost of operating this boat? I saw a chart somewhere that suggested I should expect to burn something like 10 US gallons per hour at a cruising speed of about 3K to 3500 rpm.

Last summer, that would have meant something in the range of $55 to $60 per hour in fuel. I'm in Canada and I believe that regular fuel was running $1.40+ per liter out at the lake.

That sounds awful but is probably not much worse than the 18foot Starcraft with 70HP 2 stroke Johnson that I was running.

Randy
 

Lyndy

Chief Petty Officer
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Re: 1972 Slickcraft with OMC stringer

There might be some means of swapping in a newer OMC version but there is an issue with the profile. I did not quite follow that so please clarify. The leg on the old one is longer? Does that mean a newer OMC would have to sit lower on the transom?
Randy

1977 High Profile would be the newest you could swap without having to modify the Transom.
 

starsnstripers

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Re: 1972 Slickcraft with OMC stringer

Hey, Nice boat! I have a 1970 Slickcraft 215, That i got in a basket case. Worked on it al last winter with the help of Iboats here i got her up and am still using it just today. My opinion is It's a well built top quality hull of it's time. It's worth repowering with a mercruiser set up. I have a straight 6 165 MC-1 drive. Perfect set up. If ya have to worry about lowering hole for a different OMC drive, FORGET THAT! May as well Do a Merc set up and be done! I heard there is a transom template/adapter type of thing you can buy and install into your transom to recieve a merc drive. If you can pick up another boat (cheap)with the the merc setup would be the way to go if its in good working order. Good time of year to find a used boat. FYI There's a Slickcraft owners group on MSN that may interest you.
 

58hydraglide

Seaman
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Messages
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Re: 1972 Slickcraft with OMC stringer

Oldsub,
I have a 73 ss 235 and have started a post on the boat resto forum. I have the same engine/outdrive assy as yours and although the engine is in good shape the outdrive needed some work. After my research I decided to rep. ower with a volvo penta and found a donor boat. I am doing pretty extensive hull work and replacing the transom. Although my boat is a 73, the outdrive assy. is a 72 and the cost of the ball gears alone(the engine side is pressed on the drive shaft and it must be purchased with the gears) made me decide to repower with a different outdrive. I will be using my boat for fishing and this is not a "classic restoration", so I have no qualms about ridding it of the OMC. True, if you decide to undertake repairing/restoring your boat you will more than likely have in it much more than it's resale value. But if you are up to the task, you will have a boat that know will be sound and provide several years of enjoyment out of it.Or you could spend 8 or even 10 times as much for a newer boat and STILL find issues with it.There are a lot of very knowledgable people here that can and will help you through your project, but unfortunately the ultimate decision is yours as to whether you want to undertake the task or not. Either way I don't think you'll be disappointed. You've got a nice boat that needs work and I would defy anyone to find a boat of it's vintage that is devoid of any mechanical or structural issues. Unless it was kept in a temp and humidity controlled "museum" from day 1 and never saw water, it will need some work. Good luck with her and keep us posted.

Mike
 

oldsub86

Petty Officer 1st Class
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Re: 1972 Slickcraft with OMC stringer

Thanks to all for the input. Keep it coming if anyone else has ideas.

I have obtained a couple of manuals for the existing setup and have been reading through them.

I am also going to try to get out and look at 2 potential doner boats this weekend. Both older Mercruisers with Ford V8's. One in a 21' with a 302 and the other in a 24' boat with a 351. Similar vintage - mid to late 70's. I can have either one on a trailer for somewhere between $500 and 1200. Should be able to resell the trailer for enough to pretty much break even.

Not sure I want to get into rebuilding the transom for the Mercruiser but also not sure it is worthwhile to put much money into the existing engine and drive. Not looking to do a restoration. Just want a reliable boat.

I assume that if I were to swap in a Mercruiser, it would be easier to swap in a newer one later.

The other possibility is to find a newer one now. Been watching but have not seen anything yet.

Too cold here now to do much in any event. The boat is too big to go inside my garage and is 175 miles away at the cottage in any event. Could haul it in if I had somewhere to put it but don't.

Anyone have any idea as to whether it is bad for a glass boat to be hauled around when it is cold out?

Randy
 

captmello

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Re: 1972 Slickcraft with OMC stringer

I wonder if an older Volvo 270,280 type would work. they seem to have a large transum shield and you may be able to open the hole up more to accept it. Sorry I don't know the dimentions, just a thought.

Good luck!
 
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