what out drive is this?

[framanda]

so the boat is a 1980 sea ray 192 bow rider 470 mercruiser. I plan on doing a full restoration but it is machanicaly sound and i did core samples in some key places and found no rot so im enjoying it as is for the rest of the summer. any ways i was crusin on the sac river (im for northern calf) and i found a sand bar in the middle of the river and well im in need of a lower unit now. I cant see the serial # i search but i cant really find a definate awnser so if you know for sure what it is or what will work or a good source for one around my area i would really appreciate it thanks this is my first boat and ive included some pics of it.

 

[IVAZ]

Re: what out drive is this?

A side pic would be great.
Since your cavitation plate is round at the corners Im going to guess pre-alpha outdrive.

 

[JustJason]

Re: what out drive is this?

Thats 1 ugly Mercruiser R drive.

 

[searay3]

Re: what out drive is this?

You def need a prop. As for the skeg, many have run for a long time without it. It's there to protect the prop, but as you found out, only in very specific situations. If the shaft ain't bent, I'd buy a prop and maybe a skeggard and run it..

 

[howlnmad]

Re: what out drive is this?

Wow! I haven't seen a prop like that since that rock bed I ran into two years ago:redface:.

 

[gadget73]

Re: what out drive is this?

Are the gears damaged, or did you just break the skeg off? If its just a busted skeg, you may be able to have it repaired by someone who can weld aluminum. Drive looks like an R or MR drive, I don't know them quite well enough to distinguish.

 

[framanda]

Re: what out drive is this?

yay the prop shaft is bent a little bit but i could straiten it or buy a new one so the fin on the bottom there is just to protect the prop it dosent aid in stability or turning so i could just shave it down a bit and round all the edges back off and call it good because im done with the river oh and that sand bar had plenty of rocks in it but i wanted a different prop anyway so no big deal.

oh and for the above poster they have some type of shear key right im hoping thats what happend but i havent pulled it apart yet so i dont know.

 

[searay3]

Re: what out drive is this?

If it shifts ok, you probably dodged a bullet for now. The bent shaft is an issue. If you don't get that fixed, you risk bearings/seals/internals etc. The sterndrive engineering lower may work if the repair gets too expensive. They have them here at Iboats I believe. Contact them for fitment.

 

[Don S]

Re: what out drive is this?

It's a Mercruiser "One Drive", the R didn't come out till 83.

 

[JustJason]

Re: what out drive is this?

Yep... Your right as always Don.. its a MC1.. Couldn't see the top cap, no skeg to go by... and much to lazy to look at my OWN notes

 

[jtybt]

Re: what out drive is this?

I thought type I, too, for the lower but I would expect the upper to be an MR but after 30 years, who knows what's there.

 

[JustJason]

Re: what out drive is this?

Actually MC1's and R's parts/uppers and lowers, are fairly interchangable except for the cosmetics. An MR is completely different and closer to a Gen 2.

 

[Don S]

Re: what out drive is this?

I thought type I, too, for the lower but I would expect the upper to be an MR but after 30 years, who knows what's there.

Merc didn't use different uppers and lowers. In the end, they were interchangable, but they didn't come out with a 1 lower and R upper.
It was all R, then all MR, etc.

 

[framanda]

Re: what out drive is this?

sorry i dident see the above post "long day"

 

[Don S]

Re: what out drive is this?

heres a pic of the upper if it helps anyone

Already told you what it is, what more are you looking for?