how do i determine what prop will fit my 1986 85 hp

[gwgautney]

The motor I just got has a prop that is pretty beat up. I want to get a new one for it but have no idea how to determine what i need. I havent pulled old one off of it yet I just know its going to need a new one. Its a 1986 1600 Bayliner capri openbow. I saw somewhere that a 17p works good on these boats. I just dont know what all will fit on these motors.

 

[Bondo]

Re: how do i determine what prop will fit my 1986 85 hp

The motor I just got has a prop that is pretty beat up. I want to get a new one for it but have no idea how to determine what i need. I havent pulled old one off of it yet I just know its going to need a new one. Its a 1986 1600 Bayliner capri openbow. I saw somewhere that a 17p works good on these boats. I just dont know what all will fit on these motors.

Ayuh,.... What motor,..??

 

[jerryjerry05]

Re: how do i determine what prop will fit my 1986 85 hp

Looks like a 86/85(title)

Remove the prop.It should have some kind of #s stamped someplace on it.
To make sure that it's the right prop? You'll need a tach on the motor.
Then take most of the junk out of the boat.
1/2 tank of gas 1-2 people and go for ride.
Check the RPM's at WOT.
The motor should run about 52-5500rpm's at WOT.
Post the results.
If you have a 17p and your doing 52-5500 rpm's then your propped right.
Higher than 5500 then get a 19p
Lower than 5200 go down to a 15p

 

[steelespike]

Re: how do i determine what prop will fit my 1986 85 hp

What motor? Post a pic of the prop.Probably needs replaced but may serve as a base test prop.
Numbers usually appear near the base of the blades or under the prop nut.

 

[Silvertip]

Re: how do i determine what prop will fit my 1986 85 hp

The prop does not go on the boat -- it goes on the engine. When shopping for props you look at the application catalog or if you scroll to the top of this page you will see BOAT PROPELLER right below the picture of a -- well -- boat propeller. Click there. This will take you to the iBoats prop section where you can enter the make, year, HP of your engine. You then select whatever prop is listed for that engine. If you want the same pitch as you currently have, look at the existing prop either on the hub or somewhere between the blades for the pitch and diameter.

 

[gwgautney]

Re: how do i determine what prop will fit my 1986 85 hp

Really I didn't realize the prop went on the engine I sure appreciate that information I would have been lost without it. Learn something new everyday!

 

[limitout]

Re: how do i determine what prop will fit my 1986 85 hp

Really I didn't realize the prop went on the engine I sure appreciate that information I would have been lost without it. Learn something new everyday!

giving "attitude" to those trying to help you is uncalled for, no one was trying to insult you and all you described was the boat and gave us no info about the engine

 

[steelespike]

Re: how do i determine what prop will fit my 1986 85 hp

Silvertip was pointing out the primary consideration for prop selection is the motor with the boat size ,style and activity part of the equation.
And we still don't know what motor.

 

[jerryjerry05]

Re: how do i determine what prop will fit my 1986 85 hp

The guy posted it in the Force Forum.
Who ever moved it should have brought that tidbit along.
The title says 86 85hp
AND he tells you it's a 16ft boat.
What else does he need to put on there?
Maybe everyone should read his original post and try to help?
Not snipe at each other

 

[gwgautney]

Re: how do i determine what prop will fit my 1986 85 hp

I didnt realize the post was moved it is a Force 85hp 1986 year model
thanks jerryjerry

I appreciate all the information
boat doesnt have tach thats next on my list will probably be asking how to hook one up lol. Definantly a newbie but learning a lot with yalls help

 

[Frank Acampora]

Re: how do i determine what prop will fit my 1986 85 hp



Good on you Jerry! The title of the post gives engine information.

At any rate, if the engine is running well, a 13 X 17 or even a 13 X 19 prop should give good results. You have the option of using closed hub stock type props or thru-hub exhaust type props. Either type will give the same performance.

I would start with whatever is on the engine now or, if you can't get any numbers, a 13 X 17. Numbers can be in three places depending upon prop type: Under the prop nut, stamped into the side of the hub, or behind the hub. When you remove the prop, very often the thrust washer will have corroded into the hub and you will need to drive it out with a long screwdriver or punch. Be certain the thrust washer is replaced on the propshaft. It goes on the engine, not the boat, just as the prop does--LOL

You have the option of using stainless steel or aluminum props. Depending upon the design, you may need to use a different thrust washer. Some props, while listed for Force engine will need minor modifications to fit correctly and with some brands you will need to remove the anode--circular thing bolted with two screws. They don't tell you that.

You can use props listed for Force engines and some listed for Mercury engines as long as they fit the small gearcase Mercury.

The 86 should have an extended propshaft and flare washer/tailcone. It is not necessary to use them and if they are missing, no harm. It does look better with them though.

Rather than buy new, Personally, I would shop the auctions under Force Chrysler propellers.

 

[limitout]

Re: how do i determine what prop will fit my 1986 85 hp

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Good on you Jerry! The title of the post gives engine information.

no it does NOT. based on your statement (if correct) then you should be able to tell me everything about my motor in the example below.

example: I have a 2005 70hp with 15p prop so will you tell me what brand it is (needed for gearing and diameter size) and the prop I need for it please?

so why are we so rude to ask for info we need to help him?

I applaud jerry for defending him, it wasn't gwgautney's fault his post was moved taking it completely out of its context but no one was giving him a hard time. once he realized we were missing the info he gave us that info and we are all on the same page now working on his problem.

why be so quick to blame those who are only trying to help?

people just asked for more info in order to help him and that's all, no one here is a mind reader so just because some may have more info then was given here and followed this thread over here from another forum does not mean everyone else here should be able to read minds and know info that was given in a different forum but not given in this forum.

so sorry but not "good for you jerry" but instead jerry was out of line to blame us for not knowing info that was not given here.

the basic rules for these forums is: If you are having a problem with an engine, please tell us the make, model and year of the engine and the history of the problem.

 

[Frank Acampora]

Re: how do i determine what prop will fit my 1986 85 hp

Quit getting your drawers in a bunch! Yeah, I first saw the post in the Chrysler/Force forum and didn't notice the brand was not given in the title. HOWEVER: You guys were wrong to beat up on the OP "The prop goes on the engine, not the boat" and then get Pissed when he came back with a snotty reply. What did you expect him to do?

 

[limitout]

Re: how do i determine what prop will fit my 1986 85 hp

Quit getting your drawers in a bunch! Yeah, I first saw the post in the Chrysler/Force forum and didn't notice the brand was not given in the title.

thank you for admitting you and jerry were out of line

HOWEVER: You guys were wrong to beat up on the OP "The prop goes on the engine, not the boat" and then get Pissed when he came back with a snotty reply. What did you expect him to do?

the only ones that appear to have things in a wad and continue to sidetrack this thread is you, the OP understood the simple mistake and resulting lack of info so he added the info we asked for.

and yes I agree the comment made by silvertip could be seen as condescending but it also could be seen as basic info a pure novice may not be aware of. it was also his one and only comment in this thread so why are you attatching his comments to others?


asking someone to remain respectfull to other members is basic forum behavior and not "being snotty" as you want to put it

lets stop with the drama and get back to helping Gwgautney please!

 

[jerryjerry05]

Re: how do i determine what prop will fit my 1986 85 hp

I wasn't out of line. Frank might have been(for what?),not me.
Did I say your an ***? That would be out of line.
Guess it's time for a vacation.

 

[jestor68]

Re: how do i determine what prop will fit my 1986 85 hp

The "standard" prop for that boat/motor would have been a 17 pitch.

 

[gwgautney]

Re: how do i determine what prop will fit my 1986 85 hp

Thank you

 

[JB]

Re: how do i determine what prop will fit my 1986 85 hp

Seems I owe several people an apology. I moved the thread from the Force forum to the Prop forum without adding the make to the title. Everything you folks are complaining about was my fault. :facepalm:

 

[QC]

Re: how do i determine what prop will fit my 1986 85 hp

Looks kind of like Murphy's law and some misunderstandings. I would've made the same move as JB, and I would've missed the engine make as well. Just a silly deal. But we should handle disagreements by PM instead of the open forum