Prop questions

[Gator_Bait]

What are the numbers on the sticker ?

I'm guessing the "1.83:1" is the gear ratio in the lower unit...?

I'm also guessing the 12 or 22 might be the pitch. But don't know what the other is.

 

I saw a crack in one of the blades. Is that something that would be repaired? Or just replace the prop? 

[Siebert Outdoors]

that should be prop diameter and pitch then gear ration

[slonezp]

It can be repaired. 12 diameter 22 degree pitch

[Gator_Bait]

15 minutes ago, Siebert Outdoors said:

that should be prop diameter and pitch then gear ration

So that should be a 12" prop, with a 22 pitch, and 1.83:1 gear ratio...?

 

Best I could tell the measurement from center to outside edge of a blade is between 5 1/4" - 5 1/2". Defiantly well under 6". So the sticker refers to the stock prop Tracker matched to that boat when it was born...? And someone...at sometime...replaced it with the one on there now...?   

11 minutes ago, slonezp said:

It can be repaired. 12 diameter 22 degree pitch

I know I'm asking a lot of stupid questions...but in all the years I've owned at least 8 boats and never had a problem with a prop or a reason to change one.

 

Is it usually a lot cheaper to repair one, like in the photo, than to replace it? Who would be best to do it so it would be balanced? 

[slonezp]

Repairing a prop is considerably less expensive than purchasing new. Look up prop repair in your area or ask the local marinas or boat dealers. 

[NHBull]

Repairing is cheap......You may want to buy a new one and have the old repaired for a backup

[WRB]

Prop diameter is measured from the shaft centerline to the outside edge of the prop, not along the blade rake surface. 

I am not liking the proposing peeling, it's may have been repaired before! Also check out the corrosion white oxide deposites on the cavitation plates, was this engine in salt water?

Tom

 

[Gator_Bait]

47 minutes ago, WRB said:

Prop diameter is measured from the shaft centerline to the outside edge of the prop, not along the blade rake surface. 

I am not liking the proposing peeling, it's may have been repaired before! Also check out the corrosion white oxide deposites on the cavitation plates, was this engine in salt water?

Tom

 

To my knowledge it's never been close to saltwater. I'm just north of Joplin MO and there's a ton of nice lakes around here, Mo, NE OK, SE KS, Northern AR, etc. I bought it a couple of years ago when we just moved here. A boat shop and used boat dealer just south of Joplin had it.

 

It has had a "Whale Tail" on it at one time...or maybe a "trolling plate" as there are 4 holes drilled in the cavitation plate. I put a Whale Tail on a little Tracker Pan Fish 16 40HP 2 stroke I had in Louisiana, made a world of difference.

 

I called a Tracker dealer about 25 miles away and they looked it up. The numbers on the hub showed it to be a 10 1/2" 13 pitch. It came out as a 10 5/8" 14 pitch, which they have in stock. They could get the 13 in a day or so. So I told her I would just take the 14 in stock. Not much difference anyway, and 95% of the time I'm fishing by myself. I just go out to have some fun or catch dinner, if I'm lucky, not "run and gun" in tournaments.

 

A little more than I thought at $180, but it's an OEM Mercury Quicksilver not an off brand made from pot metal. And she said if I brought the boat they would install it for nothing!

 

When I went out to take it off the motor a while ago, in the rain of course, I was hoping to hold it tight enough with a 2x4 to loosen the nut. When I put the socket on it...it was barely more than hand tight!! Guess I'll add "check the prop nut" to things I look at after a day of fishing...LOL. That is IF it ever quits raining!

[WRB]

The prop nut should have a ear type lock washer or cotter pin to prevent loosening. The procedure is tighten the nut snug, not too tight, and lock it.

Good luck,

Tom

PS, we could use your rain!

[Gator_Bait]

2 minutes ago, WRB said:

The prop nut should have a ear type lock washer or cotter pin to prevent loosening. The procedure is tighten the nut snug, not too tight, and lock it.

Good luck,

Tom

PS, we could use your rain!

Yea...the ears weren't bent up all the way either!

You can have the rain! It's been raining so much if it stops it'll be a week later till I can get the mower on it...then I'll need to bail it! ? 

[OnthePotomac]

On 5/13/2020 at 11:48 AM, Gator_Bait said:

So that should be a 12" prop, with a 22 pitch, and 1.83:1 gear ratio...?

 

Best I could tell the measurement from center to outside edge of a blade is between 5 1/4" - 5 1/2". Defiantly well under 6". So the sticker refers to the stock prop Tracker matched to that boat when it was born...? And someone...at sometime...replaced it with the one on there now...?   

I know I'm asking a lot of stupid questions...but in all the years I've owned at least 8 boats and never had a problem with a prop or a reason to change one.

 

Is it usually a lot cheaper to repair one, like in the photo, than to replace it? Who would be best to do it so it would be balanced? 

I ran an aluminum prop on the tidal Potomac for about six years and after having it put back in to shape several times I switched to SS.  The river is a combat zone for an aluminum prop.