Propeller Question

I bought my first boat about a month ago now. At the time I didnt realize but the Trim Tab was broken when I purchased it. I ordered and installed a new one. Problem is now, there is only ONE pretty precise area I can have the Trim Tab fin in order for the propeller to not clip it when its running. I assume this is how the old one was broken. I've done some google searches, but can't find what size the propeller should be. Maybe someone who knows will see this and let me know.

My Motor:
1993 Yamaha 90 HP
Outboard
90ETLJ - Model # I assume, only markings I can really find that specify anything.


Currently installed prop:
Apollo XHS S/S
993145
13 1/8 - 19

Thanks in advance.

Diameter of the prop is too big.

This is a pretty good source of info. I think from your info on your prop it is a 19" prop. Should be able to determine what size your motor should have.

Yamaha Outboard Forum

Also here is the Yamaha site for selecting propeller size for boat style.
Picking a Propeller | Yamaha Outboards

13 1/4 by 19 should be standard prop. Think you asked this on another thread. I think you either have the wrong thrust washer installed or are missing the thrust washer. If you have pulled the prop does it have a washer between housing and back of prop? When installing aftermarket props some take a different spacer than stock. Since you bought this used anything could have happened when previous owner started changing props. You could pull prop,check for spacer, if missing you need one if not see if it has numbers. I would find the telephone number for Apollo and give them a call. I'm sure they can help you.

Quote:

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Originally Posted by cray

13 1/4 by 19 should be standard prop. Think you asked this on another thread. I think you either have the wrong thrust washer installed or are missing the thrust washer. If you have pulled the prop does it have a washer between housing and back of prop? When installing aftermarket props some take a different spacer than stock. Since you bought this used anything could have happened when previous owner started changing props. You could pull prop,check for spacer, if missing you need one if not see if it has numbers. I would find the telephone number for Apollo and give them a call. I'm sure they can help you.

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What Cray said

Thanks for the help gentlemen. I will try and call them Friday, I don't get off work early enough during the week to make it before they close. I did inspect my motor some more when I got home. There is a washer on there with the numbers 991212. Maybe I will get lucky and just replace a washer or something haha.

Acutally I have found 2 parts that my be referred to as the washer. The first one I referrenced is more along the lines of your typical washer (in shape). The properller would butt up against this one when installed on the motor. The second peice I have found slides into the rear end of the propeller and the nut tightens down against this piece when the prop is installed. These numbers read 826074.

With out pictures it's really hard to tell what you have. Basically your saying right now you have 2 washers or spacers between prop and gear housing? If so take one of them off, put prop on and see iff blade tips will clear tab. I would take out the thinner of the 2 first. Then try with the other one and do same thing. If you find one of them lets the prop clear tab then torque down and spin prop checking to make sure you have clearance inside housing and nothing is rubbing.

Sorry Cray, I should have thought to upload pictures. There is only 1 washer between prop and gear housing. Here are pictures. The second thing I was talking about actually sits itself down inside the prop and have grooves for the drive shaft to slip into. Sorry I'm not more descriptive/calling things by their proper names, still new to it all haha.Attachment 169635Attachment 169636Attachment 169637

The attachment dosnt work for me. Now that you describe it. The one with grooves for shaft is the actual spacer. That spacer once in place should be against the washer. Let me ask you another question, which direction does the prop tip need to go to clear the tab? And if you removed the spacer will it clear?

Here you go, this should help you out. Look at parts 19 and 20. That shows 19 which is the one with splines between prop and housing then 20 which is a spacer washer goes on out side of prop. Also 19 should only go one way in most cases since most have a taper on one side and flat on the other. Also looking at the prop list your right in the ball park with what you have. As you scroll down it lists all the parts description.

1993 90TLRR Yamaha Outboard LOWER DRIVE 2 Diagram and Parts

Are you trying to put the trim tab on backwards?? See the direction in the link Cray posted....

Another thing is that you may have a prop that has spun on the inner rubber mount and will need to be repaired.

I don't live too far from you if you want me to look at it send me a PM.

test trying to reattach pics

Attachment 169701
Attachment 169702
Attachment 169703

Cray -

19 is in place. There is nothing that looks like 20 or 21, see above. Trim tab installed as shown in picture, fin pointed out back of boat.

dfar - if you WANT to that would be great. I'll PM you. I hate to ask that of anyone though.

We have such a great community here, thank you guys so much with the help so far. I believe once I have this figured out I'm finally done fixing/fine tuning things haha, for now anyways. I can't even run it though the way it is now without breaking the tab off and in so making the boat pull to one side or the other again.

I think if you could get dear over to look at it he could help figure it out. Hard not being able to put hands on it. That part you have in your hand is part of the prop hub. You could change that part out with another one and put it on different motor. I believe your problem lies in that spacer that's on the shaft. I still think I would try calling Apollo. From the looks of that part in your hand you may not need that spacer.

That Prop is made by Michigan Wheel and uses their XHS-208 hub kit. for your 90 yamaha and the prop is the right size also.

The amount of black deposits on the parts in the picture makes me think that those parts are getting exhaust gases in them which should not happen. You may have some incorrect parts in there.

Well went and met Dave (dfar) today and he got me straightened out. Seems the prop was too big (length wise). So I'll have one for sale shortly haha. Gave me a spare he had to use for the time being. I really appreciate everyone's help on this! Hopefully I'll be able to return some favors down the road for you guys haha.