Educate me....

[cocacola]

I hear some motors have sleeves and some don't.

Then I hear about the one's that don't that either get replated or sleeved when repaired.

Right?

What motors are not sleeved from factory?
Which one's are?
What years?

Seems to me that I would want a sleeved motor since I don't race and we pleasure boat/ski/tube.

[Rusrog]

I hear some motors have sleeves and some don't.

Then I hear about the one's that don't that either get replated or sleeved when repaired.

Right?

What motors are not sleeved from factory?
Which one's are?
What years?

Seems to me that I would want a sleeved motor since I don't race and we pleasure boat/ski/tube.

All production motors form Mercury are sleeved as well as most all of the production motors from Yamaha & OMC. The 260's, 245's and other Hi-Po Merc motors are plated and yes... When the plating peels it is harder to fix but not impossible and certainly worthwhile to do.

[cocacola]

Thanks Russ. So a mid 80's fishin' engine is a steel sleeve motor? I assume you are saying it's always been this way. Only interested in V6 information.

All production motors form Mercury are sleeved as well as most all of the production motors from Yamaha & OMC. The 260's, 245's and other Hi-Po Merc motors are plated and yes... When the plating peels it is harder to fix but not impossible and certainly worthwhile to do.

[blkmtrfan]

Thanks Russ. So a mid 80's fishin' engine is a steel sleeve motor? I assume you are saying it's always been this way. Only interested in V6 information.

I believe that a mid 80's 2.4 V6 fishin motor will be a "Chrome Bore" block, the newer 2.5 V6 fishin motors are steel sleeve.

Many 2.4 V6's that melt a piston are "sleeved" to repair that hole.

[cocacola]

this the kind of information I need. Personally, for what we do with a boat, I want a sleeved motor. Just makes sense to me for longevity. Wife will kill me if another engine has a problem.

I believe that a mid 80's 2.4 V6 fishin motor will be a "Chrome Bore" block, the newer 2.5 V6 fishin motors are steel sleeve.

Many 2.4 V6's that melt a piston are "sleeved" to repair that hole.

[blkmtrfan]

Chrome bore 2.4 V6s are very good motors and can be made to last, Look at how many are still running.

Do a search on T-Rex's "Cherry 2.4" (I think that is what he called it?)project for some great info on them.

If you have a choice between a 2.4 and a 2.5 most on the board (except for T-Rex and a few others) would probably choose the 2.5.

If you already have the 2.4 or it is cheap, you sure can build a nice motor with it.

[RBT]

All merc motors are sleeved, some all production and the pro max series are steel sleeved.
Some have chrome plating on the bores and use a steel ring, the rest are steel bore and run a chrome ring.
The hi-per motors, 225/240 Bridgeport, the 245/260/280/drag/champ are all aluminum sleeved nicasil or nicom coated.

RT

[Rusrog]

I believe that a mid 80's 2.4 V6 fishin motor will be a "Chrome Bore" block, the newer 2.5 V6 fishin motors are steel sleeve.

Many 2.4 V6's that melt a piston are "sleeved" to repair that hole.

OK.. I was just referring to 2.5's. Yes the 2.4's were 'chrome bore' motors and were quite good running motors but now it is getting harder & harder to find a motor that still has 6 chrome bore holes. It seeems like someone has always thrown in a steel sleeve as a repair. Nothing wrong with that and I have a had a few, all of which ran great. If I were you, doing what you are looking to do, I would stick with the later motors and I would even consider going to a 3.0 merc or switching to a 3.1 Yamaha. These motors make mountains of torque and generally they are a bit cheaper than a 2.5 liter Mercs.

Russ

[cocacola]

Thanks Russ.... that's what Jay Smith was alluding to me doing (3 liter). The budget is probably drive whatever I do. Can you mount a 3 liter on a 2.5 lower with some sort of adaptor?

I have thought of the Yamaha too.

For the life of me, I don't know what I could get for my current engine.
From Laveycraft, here's what it had:
2.4 Offshore Merc. Motor #OC175451 (CLE gearcase)
A fishin' 2.5 powerhead was put in it's place eventually.
That engine now pushed a rod through the front case at idle.

Someone here take a guess on the value of my engine complete as is.

[shooter1]

If I was in your situation I would tear down the motor and see what extent the damage was. Yes you probably will be changing the front half but that's no big deal. You might be able to fix the motor relatively inexpensive and you would know what you had instead of buying somebody's cluster duck motor. There are people that will help and there are some who don't know squat. Tear it down look at what you've got take some pictures, post'em and go from there. The 3.0L will only fit on a 3.0L mid. It isn't compatable with the 2.5. You can put a 2.0L, a 2.4L and a 2.5L on your mid without many problems.

Shooter1