1979 Mercury outboard

[Kissdude]

Hey guys,
I have in my possession an 1979 70Hp Mercury engine with lift but it is missing the block due to hole in it where piston was lol. My question is without block, how can I tell if this is a Force unit cause serial number would have been on block, correct?
Any help would be appreciated thanks.

 

[racerone]

???----FORCE motors were not marketed in 1979.

 

[Kissdude]

Oh I see ok. How do I find out what motor this is? I do have a serial number on the lift but no one seems to know what it is. Thanks

 

[Kissdude]

???----FORCE motors were not marketed in 1979.

I might have the year wrong but it’s cowel cover is plastic, comes apart in two pieces and also have an oil injector if that helps.

 

[racerone]

I doubt FORCE motors used oil injection.---Post pictures and it can be identified in seconds.

 

[Kissdude]

I doubt FORCE motors used oil injection.---Post pictures and it can be identified in seconds

I doubt FORCE motors used oil injection.---Post pictures and it can be identified in seconds.

Ok, here goes!

 

[racerone]

Mercury.

 

[Kissdude]

Mercury.

????… yes I know it’s a Merc, I’m trying to find a cylinder block for it.

 

[racerone]

Should be a few on E-bay I think.----Or find a parts motor on Craiglist / facebook market place.

 

[Kissdude]

Should be a few on E-bay I think.----Or find a parts motor on Craiglist / facebook market place.

Yeah I would think so too. Would be nice tho to know what I’m looking for.

 

[racerone]

I do not know what you have !!-----The cowling / other parts pictured are NOT a 1979 model.---At least the decals are not.----What is the serial # of this machine.-----Decal for serial # is clearly visible in picture #3

 

[airshot]

Hey guys,
I have in my possession an 1979 70Hp Mercury engine with lift but it is missing the block due to hole in it where piston was lol. My question is without block, how can I tell if this is a Force unit cause serial number would have been on block, correct?
Any help would be appreciated thanks.

My serial number is on the transom saddle, back side where it attaches.

 

[Kissdude]

I do not know what you have !!-----The cowling / other parts pictured are NOT a 1979 model.---At least the decals are not.----What is the serial # of this machine.-----Decal for serial # is clearly visible in picture #3

Serial number is

I do not know what you have !!-----The cowling / other parts pictured are NOT a 1979 model.---At least the decals are not.----What is the serial # of this machine.-----Decal for serial # is clearly visible in picture #3

 

[jimmbo]

That Serial # comes up a 3 cylinder Looper, and by the Cowl Decals, I would guess around 1987

 

[Kissdude]

That Serial # comes up a 3 cylinder Looper, and by the Cowl Decals, I would guess around 1987

How hard would it be to find a cylinder block for it? I have all the motor parts minus the block.

 

[jimmbo]

You could try contacting a Merc Dealership, but I doubt the Part is available. Your best bet is just find another motor, in better Condition, and keep this one for parts.
Weren't you trying mix and match Power Trim Systems between this motor and a 44 inch 50hp?

 

[racerone]

Not a 79 model then.-----Should be lots of powerheads available.----70 / 75 / 80 / 90 HP models use similar parts.----Consult your local friendly dealer for help.

 

[redneck joe]

I agree you should just find a running motor of same size and use this one for parts.

 

[Kissdude]

You could try contacting a Merc Dealership, but I doubt the Part is available. Your best bet is just find another motor, in better Condition, and keep this one for parts.
Weren't you trying mix and match Power Trim Systems between this motor and a 44 inch 50hp?

Yes, I was trying to see if it were possible but it is not lol. I picked this motor up cheap because the guy had the block machined and didn't want to pay the high price ($1.300.00). When I talked to the shop, they had already sold the block. Kind of a waste cause it is in great condition.