Another bravo problem
 

Running about 50 the boat lost forward thrust. Reverse works. No bad noises no grinding or other noise. Cone clutch?

Thanks

Probably 700hp 100 plus hours on the drive. Mercury hp oil every 20 hours. No metal the last change.

Pull the top and see if the bearings in the cap let go and rained down in your drive.

What year is the drive? Or what does the serial number begin with, if it is older that OM then it has thin floored gears and you more than likely broke the floor out. If that is the case, there is an upgrade kit to put the better gears in, then you will find the next weak link, the tower in the case.
Hope that helps.
Dick

Drained the oil. It looked fine no metal. The magnet was clean. Pulled the top and back cap every thing looks good. No broken parts.
Dick this is supposed to be an XR drive. The upper looks newer than the lower.I can't find any thing obvious. This is my third year with the boat and drive. Also can' tfind a serial #i. Just stickers with a bar code.

Any thoughts on this problem would be great.

I'm not an expert -- engine coupler going out?

3pointstar

if he has rev its not the coupler

straight cut gears or helical

Straight cut.

xr then

My bet is either the floor broke out as Mr. Gadgets suggested or you could have lost the clearance in the clutch cone if a thrust brg (Torrington Brg) or washer broke, this has happened to me more than once, you may still have reverse but not for long. and no metal will show in the oil.

Keep us posted!

You might have broken the ring gear off the hub. I have seen that happen. Put the drive in forward if you can. You should have to spin the input to shift it. but it may go in to forward. If then twist the prop and see if it rotates both ways. I should lock up in one direction. Watch the lower gear, (RH prop uses lower driven gear for forward) and see if the ring is still attached to the hub. The hub will have the brass spinner ring on it. Normally the whole gear should try to turn. And hold the propshaft from turning in one direction. See what that shows you. If there is no metal or damage, then the gear may have seprated. I found one that was in one piece but the ring would spin and not the hub part. The only thing holding it together was the internal bearing.
The XR gear is a thick floored gear so you didn't push the floor out. My guess is the gear separated.
let us know.
Dick

I did not try this yet. I was getting ready to pull the drive off the boat and was wiping the rear Imco cap off to put it back on and found several pieces of metal inside the cap. First thought it was some type of a shim but after looking at the biggest piece it is very rough on the outer edge.about .100 thick looks like if you had all of the pieces it would be about 1.25 diameter.

Most likely the race for the torington brg. post a picture of it if you can!

Pic's soon

Mr. Gaget wins the prize. Definitely separated the hub from the forward gear. I'll put up some pics tomorrow. I removed the shifter so it can be seen easier.

Not good pics. But you can see a screw driver showing the separation in one pic.

<iframe width="480" height="360" src="http://s927.photobucket.com/user/rivermann50/embed/slideshow/Mobile%20Uploads"></iframe>