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Attached is the picture. It is important to make sure that the shifter doesn't hit the support piece. Your trim cylinders will not go down as far as it did with the Cobra, because the rear pin is in...

I'm sorry, we are unable to look up Mercruiser serial numbers that old. We can only look them up from when they started using a letter in them. I can put a 0A in front and it tells me its an MC1, but...

That gear will move around like that. The top cover is what puts preload on that shaft, so with the top cover off you will see the movement that your seeing. As far as where else to look, it could be...

We just use loctite 271 on it.

Tech Support

Yes, uncovered is fine.

That is for a speedometer fitting used on mercruiser boats. You wouldn’t need it on the conversion.
Texh support

The driveshaft is a floating driveshaft. When you put a load on it, the driveshaft moves up into the correct position. The clicking your hearing when turning it is because the backlash is non...

There is a tool that clamps on to the driveshaft and then pulls the shaft out. It just has to break the clip holding it. https://www.sterndrive.cc/product/omc_driveshaft_removal_tool_390706.html...

Actually you can switch the lower units, and as long as you put the left hand prop on the port side, everything will seem to be okay. You wouldn't know it until it failed, but i'm sure in your case,...

I'm sorry your having issues with the product. We will certainly stand behind it with our 3 year fault free warranty. We always want them back to look at first to make sure we know whats going on...

If the noise is gone with the prop off, then i think the mechanic had it right when he said an overspinning of the prop. The engine runs slow at idle and the prop has time to fall backwards and hit...

The impeller kit and upper pump kit that would normally go on your 1981 is the same as will go on our drive. For a water pump base you would need to say that you have a 1986-1990 style as our SE106...

It sounds like the clutch teeth have given out on the clutch or the gear. It is pretty rare that it happens. Make sure you are shifting quickly into gear in the future so the teeth don't get more...

I'm sorry your having an issue with the product. My understanding is the warranty department is waiting for some pictures of the issue and then we will go from there.

Thanks,

Tech Support

It's a little hard to talk about this in a forum post, so you may want to call tech-support at 813–9 25–7127 tomorrow so we can walk you through it. My best guess is that you actually have it in...

Oops, i mist that post. You will need to smooth it out by sanding it and then get some phantom black from a mercury dealer. It is a rattle can, but it should be full and try not to do it in the wind....

July 20th of 2011 is the date we sold it.

Tech Support

It is a 1.47 unit.

Tech Support

It could be a few different things. The prop hub or the engine coupler could have failed. Try a different prop if you have one. If it was drive related, then I thin the clutch teeth would have had to...

An 89 5.0L could be a 1.62 if it is a 2 barrel carb. If it is a 4 barrel carb then it is most likely a 1.50 and then it will work fine. If it was a 1.62, by putting a 1.5 on it, you will need to put...

We originally modeled our 1.62 gears after the Mercruiser gears. It became apparent that the gears were not strong enough with that design. We then redesigned it to be much stronger. You would have...

The other thread that you posted in had some good ideas, making sure the gimbal bearing is seated properly is an important one. When you inspect the u-joints, you should make sure that you don't get...

Please look at your thread over in general discussion.

Tech Support

Have you checked the unit for metal? The bottom plug should be full of metal if the clutch or gears failed. The driveshaft could snap, but the symptom would be everything is good, and then no thrust....

http://www.sterndrive.cc/product/90-416-A25.html

That is the one you need.

Tech Support