89 200hp 2 stroke

[Autumnwind]

Was given a boat with twin 200hp 2 strokes, 25 inch shafts.
Counter rotating lower unit was missing.
I have ordered a replacement unit and attempted to replace it but have met resistance as shaft will not go in completely.
Removed the unit and it appears that mud daubers got up in there.
Ran a hose and attempted to clean it out that way but there is still some resistance, light tan sediment washes out.
Can a power washer jet be used to clean this out without harming engine.
Or, what I would prefer to do if there is a simple way, access the section where the shaft seats and clean it out..
Any suggestions?

[TownsendsFJR1300]

If daubers had enough time to build a nest, the splines up there could very well be rusty (especially if not lubed under normal conditions).

I think I would try a "shotgun" cleaning tool (brass, roundish, brush on a long handle) used for cleaning the barrel of the shot gun. It should take off most of the debris in the splines, much better than a garden hose. Obviously flush with water to get out all the crap.

You can also use the lower unit, (the drive shaft splines) pulling it in and out (maybe with some liquid wrench /oil) until the splines are fully cleaned up.

Again flush out any crap.

I would probably use a piece of PVC pipe to sneak all the way up there, the garden hose on the lower end of the pvc. Shouldn't need a lot of pressure, the barrel tool should clean things up on its own..

Use Yamaha marine, waterproof grease on those splines at final installation.

Please post any updates...

[Autumnwind]

Has been sitting for some time and is likely an accumulation of dauber and rust etc. Thank you for the shotgun cleaning tool information couldn't figure out anything that was long enough to effectively get up there, I assumed the splines would clean things out a bit also however I didn't want to pack anything in too much and really gunk up the works.
Have the Yamalube for install.

Thanks again....
I will keep you posted.

[Autumnwind]

TownsendsFJR1300

Cleaned the inside of shaft with brass brush secured in the end of pvc it was a bit snug but seemed to clear things up with some liquid wrench....
Ran a long hose with a nozzle at the end to clear it out.
My situation now is one that when I took the brush out I noticed a small round 1 inch to an 1 1/4 inch spring resting on the lower drive shaft bushing.
Do you have any idea what it may be?
Wouldn't think a seal spring would be in the shaft...

Hope I didn't mess something up....

[99yam40]

hate to say it but that should be from the seal on bottom of power head.
Probably would be a good idea to pull power head and replace the bottom seals

[Autumnwind]

Oh well good thing this was given to me might go on the scrap heap.

[TownsendsFJR1300]

hate to say it but that should be from the seal on bottom of power head.
Probably would be a good idea to pull power head and replace the bottom seals

You think its the spring from part 13 or 14? Those appear to around the crankshaft and couldn't be knocke dout without removing that plate, part #12... ??

1989 L200ETF Yamaha Outboard CRANK - PISTON Diagram and Parts

Is the spring SS, approx 1/8 in diameter connected to make a circle?

[Autumnwind]

Don't mean to be naive but what is SS?
And yes it is circular, about the size of a quarter.

[Autumnwind]

Part #12 the piece you refer to as a plate shows as a housing oil seal on the boats.net website..
Is there a circular spring in that part that would require removal of the powerhead?

[TownsendsFJR1300]

Sorry, SS is Stainless Steel.

Most shaft seals have that spring style spring as part of the seal. It actually sits just inside the seal, putting/keeping pressure on the sealing part that rubs up against the shaft.

The description sounds like the spring that goes inside a seal, but looking at the parts fisch, its already up against the crankshaft and cannot be knocked out. You have to pull that 4 bolt plate to access the seals..

Maybe there's another seal lower, if someone can chime or clarify woud be appreciated.

**If you can snap a picture of it, upload to photobucket(to get a large image of it), copy and paste the "image" code to your post and yu'll get a large picture as shown above. Please put a ruler adjacent to it for our reference.

[rodbolt17]

for what you have in it, I would not worry much about that spring.
if its saltwater use odds are high the power head bolts wont come out anyway.
there are TWO seals in that housing, one seals water out,thats where the spring came from, the other seals crankcase gasses in.
lube it well DO NOT place lube on the shaft TOP.

[Autumnwind]

Gentlemen,

Thank you for all your input and assistance.
Looks like I have to pull lower unit (AGAIN) and remove lower casing to access the seal (part 14 from the diagram in this thread) and roll the spring back in providing the seal is not damaged.
Previous owner advised me that powerheads were completely redone before boat went into extended storage and it is likely I caught the brass brush on the spring and loosened it as has been suggested in this forum. Spring is intact without kinks etc. so an hour or so should get this corrected....
Phew....

Taking the Grady White Sailfish back off the scrap heap......

Thanks again....

[TownsendsFJR1300]

Please post the final results... And good luck.

[99yam40]

Gentlemen,

Thank you for all your input and assistance.
Looks like I have to pull lower unit (AGAIN) and remove lower casing to access the seal (part 14 from the diagram in this thread) and roll the spring back in providing the seal is not damaged.
Previous owner advised me that powerheads were completely redone before boat went into extended storage and it is likely I caught the brass brush on the spring and loosened it as has been suggested in this forum. Spring is intact without kinks etc. so an hour or so should get this corrected....
Phew....

Taking the Grady White Sailfish back off the scrap heap......

Thanks again....

Hate to say it again, but I believe the power head would have to be pulled to get to the seal and that housing it sits in.
But the good news is the bolts should come out without a problem if the motors were just took apart

[rodbolt17]

if you can install that spring back in place in an hour I will hire you.
it will require powerhead removal.