Back at 200...

[thesignguy]

Well it's been a while since I touched the boat and motor. Life has it's twists and turns, some good and some bad, unexpected and unjustified.

I took the lower off the 200 (https://www.screamandfly.com/showthr...11#post3359011) and the 150. Once I get the longer studs out of the 200 mid I should be able to install the 150 lower but have a few questions:

The 150 drive shaft will spin clockwise, in forward gear the prop shaft spins clockwise.The 200 drive shaft spins counter clockwise and in forward gear the prop shaft spins clockwise.

Why would it do that?

I REALLY want to use the 200 lower because if the nosecone, the 150 lower I guess will work if I have to use it. How hard is it to swap the guts, or leave it to the pros?

[pcrussell50]

but have a few questions:

The 150 drive shaft will spin clockwise, in forward gear the prop shaft spins clockwise.The 200 drive shaft spins counter clockwise and in forward gear the prop shaft spins clockwise.

Why would it do that?

I can think of a reason but you're not going to like it... One reason it might do that is that it was the "other" side of twin setup and is left turning. I hope I am wrong.

-Peter

[thesignguy]

That's what I was thinking, but I have very limited experience with all this. I did a little googling before I posted just to see if there is an easy answer, from what I've read yes it is for a twin set-up. The previous owner never mentioned it was part of a twin set-up he said it was a single until he found the Yamaha he was looking for.

All the pictures of the engine he sent me were a single set-up.

Does the 200 counter clockwise lower render it "useless" for my 20ft NITRO?

[pcrussell50]

That's what I was thinking, but I have very limited experience with all this. I did a little googling before I posted just to see if there is an easy answer, from what I've read yes it is for a twin set-up. The previous owner never mentioned it was part of a twin set-up he said it was a single until he found the Yamaha he was looking for.

All the pictures of the engine he sent me were a single set-up.

Does the 200 counter clockwise lower render it "useless" for my 20ft NITRO?

If in fact it is a reverse rotation gearbox, you could get a reverse rotation prop for it. That would be quick and dirty. Although if you were wanting to get really fancy with props, you might have a smaller selection or a bigger $$$ to deal with.

Wildcard: I think I have read on here that the reverse rotation gear setups are hard to find and in demand. If so, you might be able to sell the gearset and buy the right ones. That would require a re install and setup of the new gear set. BUT reading back you old thread, this would ALSO be your chance to swap in a 20" drive shaft as well. So the idea of swapping out gearsets might be more appealing...

-Peter

[thesignguy]

I don't want to do the reverse prop, remember Peter I'm still new at all this . I assume 80% of the props out there for sale are for normal rotation, I don't even know where to start with a prop for this boat nor do I have one.....

Well I'm going to sell the 5" spacer and the rest of the stuff I have no use for, so it might work out. Problem again is I don't have any idea of value or what I "actually" have.

[pcrussell50]

3374282[/URL]]I don't want to do the reverse prop, remember Peter I'm still new at all this . I assume 80% of the props out there for sale are for normal rotation, I don't even know where to start with a prop for this boat nor do I have one.....

Well I'm going to sell the 5" spacer and the rest of the stuff I have no use for, so it might work out. Problem again is I don't have any idea of value or what I "actually" have.

ebay/the market will sort out the value of your parts. If you’re feeling generous, southcentral outboards collects a lot of vintage parts, cleans them and re sells them. I would sooner send stuff I didn’t want, to them than a landfill if I weren’t up for the hassle of selling.

As to your reverse rotation gear box, you should be able to disassemble it yourself without too much trouble, even if you might want a pro to put it back together again. so you can add your long shaft and reverse gears to your “sell” pile.

you might try to offer the reverse gears here at S&F simply because I recall someone asking about them not so long ago and not having much luck.

keep the reports coming. As a fellow “just got a 2.4/200” bro with you, you’re story is interesting to me ;-)

-Peter

[Aaronhl]

Well it's been a while since I touched the boat and motor. Life has it's twists and turns, some good and some bad, unexpected and unjustified.

I took the lower off the 200 (https://www.screamandfly.com/showthr...11#post3359011) and the 150. Once I get the longer studs out of the 200 mid I should be able to install the 150 lower but have a few questions:

The 150 drive shaft will spin clockwise, in forward gear the prop shaft spins clockwise.The 200 drive shaft spins counter clockwise and in forward gear the prop shaft spins clockwise.

Why would it do that?

I REALLY want to use the 200 lower because if the nosecone, the 150 lower I guess will work if I have to use it. How hard is it to swap the guts, or leave it to the pros?

So are you also saying that when you spin the 200 driveshaft clockwise in forward gear the prop shaft spin counter clockwise?

[thesignguy]

So are you also saying that when you spin the 200 driveshaft clockwise in forward gear the prop shaft spin counter clockwise?

No, the drive shaft on the 200 lower will only spin counter clockwise it will not spin clockwise like it's locked. When I spin it counter clockwise, in forward gear the prop shaft spins clockwise.

[Aaronhl]

Thats strange because even a counter lower will have a clockwise driveshaft, it's the gears that change direction to the prop shaft. See if you can get it into another gear while you turn the drive or prop shaft, seems like it might be worth while opening it up atleast take the water pump off if you havent already because the driveshafts freely spin both ways

[David - WI]

Does it make any difference if it's a ratcheting gearcase or not?

[thesignguy]

The 150 lower I pulled will only free spin the driveshaft clockwise, it "locks" and will not spin CC in any gear. The 200 shifts fine, forward, neutral and reverse no problem even while spinning the driveshaft.

I'll pull the pumps off both and see what I can see.

[thesignguy]

Does it make any difference if it's a ratcheting gearcase or not?

I don't know what that means

[David - WI]

I don't know what that means

No, but Aaronhl does.

[Jim Speros]

Lets clarify a few terms. You are spinning the driveshaft with your hands clockwise?

On the shifter,, are you turning the shift shaft with a tool or channel locks? Fully clockwise will engage and spin the prop shaft clockwise on both rotation gearcases. On a counter rotating gearcase forward is engaged by turning shift shaft counterclockwise. Said another way a counter is using the aft gear, the original reverse configuration as Forward.

You say the driveshaft seems to lock when you try to spin it counterclock wise. The water pump impeller can make it feel that way. It does not like to be rotated backwards and will resist. Pulling the pumps off will allow turning driveshaft without tension of impeller.

A gearcase may be ratcheting or not depending on year , model ect. This is referring to spinning the prop shaft and how the clutch dog on prop shaft engages the gear. Early cases ratchet. Said another way is to say it will coast or spin freely when engine dies. When you spin it by hand it will only lock in one direction. A non ratcheting gearcase will lock in both directions.

I hope this is helpful.

[Aaronhl]

check to make sure you are actually in the right gear
Use a 11/32 I believe socket to shift gears so you dont damage the splines, spin the propshaft to complete the shift
I did some tests of my lower unit it's a early 90s ratchet, can use on 135-200hp


FORWARD
driveshaft spins same way as propshaft
driveshaft spins clockwise, propshaft spins clockwise
propshaft spins clockwise, ratchet sound, driveshaft does not spin
can spin driveshaft or propshaft counter clockwise freely, they spin with each other

NEUTRAL
both driveshaft and propshaft move freely, independently

REVERSE
driveshaft spins opposite way as propshaft
driveshaft spins clockwise, propshaft spins counter clockwise
can spin driveshaft or propshaft counter clockwise freely, they spin opposite of each other