1982 150HP Black Max. Bad number one... worse then I expected. Options?

[s1120]

OK, so I picked up this 150 Black Max, and knew it had a holed piston, but it still spun... so I gave it a shot. Got around to pulling it off the boat this weekend, and got to work. Well first off.... MAN there is a lot of stuff attached to these motors!!!!! Well last night I got as far as getting the lower cover off. So pulling the lower cover, this is what I see waiting for me.... DOUGH!!! The hole you see is a clean hole. No cracks... just the hole. Is that something that will effect the engine? Im not sure how the baffling effects how the engine works being a two stroke. Looks like it might be weldable if needed. I still have to pull the pistons out...... hoping the bore is not too far gone!!!!!

 

[wired247]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

You need to weld the hole. Nit a big deal but you need to tear it apart to survey the rest of the damage. Almost anything is fixable and everything is replaceable..

 

[racerone]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Take it all apart before making any decisions.------Looks like you will be looking for a crankshaft and connecting rod too. -------Big $$$$$ repair to say the least.

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

OK thanks guys. Ya, I figured that was the case. I still have to finish pulling it down. The rod is still on the crank, but not attached to the piston.. so hoping the crank is good, and the bore is salvageable. I was hoping to get this together for under a grand...I got a good deal on the boat... but the bucks are ticking away.

 

[wired247]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

A grand might be stretching it

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?




Well this is bad .... What are my options? Can they be sleeved? What other powerheads will swap? Any advice for a guy thats handy... But on a tight budget.

 

[wired247]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Yeah, Your screwed. Figured as much from your other pic. Anything can be fixed but your $1000 budget isnt going to fix that one. There is a guy on the S&F forum that has a couple of 2.4 blocks for sale CHEAP. but you'd have to act quick to get one. Might need a couple of bored cylinders and you would need pistons too. I know where you can get a rebuilt oiler crank in the box for $200. You wont get it done for a grand but you could get a complete rebuilt 2.4 under $2K . If you can find a complete rebuilt 200 HP 2.4 for less than that you are a better shopper than I am and my google foo is strong.

2.4L blocks

 

[James R]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Done many of them. It might be worth it if the crankshaft is good but I would doubt that. You will need a replacement block, boring, gasket and seal kit, Pistons, at least one con rod and bearings and probably other items such as upper and lower bearings etc. These failures are usually due to lubrication failure or blocked carbs which create lubrication failure. If the oil pump has been removed and the drive shaft has not then the pump seizes and the drive gear shatters shooting the securing bolt up the nearest cylinder.
Frankly I would look for another motor.

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Well everything else looks nice. Just number 1. I agree it par ably leaned out, seezed, and ripped the rod out. Crank looks OK at first glance.

So what's with the 2.4 blocks? This one is a 2.0 right? Does everything swap over??? I don't really need the extra HP. Its just a 17 ft bow rider, and the 150 is probably more then I need. Any other power heads work on the lower unit?

 

[racerone]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Does not look good at all----------A lot depends on your location too.--Depends on whether you want this fixed in a week.----I pick up rebuildable V-6 motors for around $200 in better shape than the motor in question here.

 

[wired247]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Well everything else looks nice. Just number 1. I agree it par ably leaned out, seezed, and ripped the rod out. Crank looks OK at first glance.

So what's with the 2.4 blocks? This one is a 2.0 right? Does everything swap over??? I don't really need the extra HP. Its just a 17 ft bow rider, and the 150 is probably more then I need. Any other power heads work on the lower unit?

You need enough stuff replaced on that motor that you might as well make it a 2.4. The extra torque really makes a difference and you can reuse most of your external and many internal parts. Up to you. Racerone can find rebuildable cores for $200 where he is at . I couldn't buy a broken prop for $200 where I live and even after I'd buy I'd find out the seller misrepresented it . It all depends on your area and how much you want to reuse and recondition parts and how long you want to use the motor. Any pre 91 2.0 or 2.4 will fit on your lower .

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Thanks for the info. I'll have to look more into this 2.4l swap. Thing is the rest of the motor is premo!! Fresh water, never been apart. Its real clean. Will I need all the supporting bits, or just use all my external Bolton stuff? Carbs, electronics, etc? So before 91 then? I have some feelers out looking. What HP were the 2.4l engines?

 

[wired247]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

You will find 2.0's cheaper. Those were 150's and 175's. When they started rating at the prop the 150 became the 135 and the 175 became the 150. The 2.4 was the 200 and some 150's and a few oddball motors like the 225 and 240 bridgeport 2.4's.

Ive seen complete running relatively low hour 2.0 150's in the $2000 range but like I said I live in a high cost of boating area. You can get parts and motors cheaper down south but beware of anything coming out of Florida. Saltwater rots these things from the inside out.

You can reuse a lot of your external parts if you want to build a 2.4 but keep in mind that deals disappear as fast as they appear so if you see something that will work for you and the price is good don't kick it around too long. He who hesitates is lost. In any case $2000 spent on an unknown outboard doesnt compare to $2000 rebuilding your own outboard even with parts from another motor to get it together. One gets you a new motor and the other gets you someone elses problem.

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Well doing some digging, I really don't think I want to build up a 2.4. This is just a older 17ft bowrider, and Im not looking for a high speed boat. Can these engines be sleeved? If so a ballpark price on cost? I can really get away with a smaller motor, and might even part this thing out, and just get something like a 115, or 130 hp motor.

 

[racerone]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Sleeves are available.-----In your case the motor came to a dynamic halt.------There may be more structural damage in the block ( cracks / distortion ) that you can not see by eye.----I would look for another block at least.

 

[Faztbullet]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

You can find another block and have bored cheaper than you can have it welded and resleeved. I will look and see if I got any 2.0 block left.

 

[Dukedog]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

If ya settle on another block you will need tha "first generation" like yours in order to use your heads. If ya go later ('83/'84 up) you will need heads for it also. Just something ya need a be aware of. You would be a lot better off with tha later year (second generation) block/heads. All of your stuff will work in/on justa 'bout any 2.0 block, even a "fat" block with tha right center mains..............

 

[s1120]

Re: 1982 150HP Black Max. Bad number one... worse then I expected. Options?

Thanks I did not know about the diferent heads. Ill keep that in mind when I am looking.