Did I do good???

[Rudy Brown]

While at a local marine shop getting some seals for my lower unit, I saw this on the shelf for sale.

The asking price was $200, firm. I put $150 cash under the owners nose and after about 10 seconds they took it. Did I do good? Here's my old and "new" prop. New one is 13.5 X 18 and old one is 13.25 X 19.

New on left, old on right.

 

[LubeDude]

Re: Did I do good???

Looks like an old Raker, if it is it will have the hub stamped Raker. That prop should have more bow lift. Your old prop looks like an SST.

 

[kp913]

Re: Did I do good???

It is definitely a Raker. Looks like it's in pretty good shape too. I would say you did good. See how it feels on the boat though, that will definitely tell the story.

www.propellerforum.com

 

[Rudy Brown]

Re: Did I do good???

The old one is a sst. It came on the boat new in 84. I cleaned the prop up with some steel wool. I'll polish it later. Cant wait to try it out, my LU is at a buddy's house getting all new seals installed now. Might get it back this weekend. Here is a before/after steel wool pic.

after:

 

[jimmbo]

Re: Did I do good???

Raker is a good prop, Ran one for 8 yrs. It can run 1/3 of it out of the water and it still grips pretty good. Remount the engine up a couple of holes higher on the transom. You will notice the boat will ride a lot different, the whole boat will ride higher and less trim will be needed to lift the bow. On my 98 glastron gs180 with a 150 ficht with 19 alum went from 49mph(speedo)@5300rpm, changed to 20 raker 54mph @ 5400 rpm. Raised engine so antivent plate was 3 inches above bottom of boat, no ventilation on take off and only a little on turns if over trimmed considerably. Hooked back up as soon you touched the trim down button

 

[Rudy Brown]

Re: Did I do good???

Raker is a good prop, Ran one for 8 yrs. It can run 1/3 of it out of the water and it still grips pretty good. Remount the engine up a couple of holes higher on the transom. You will notice the boat will ride a lot different, the whole boat will ride higher and less trim will be needed to lift the bow. On my 98 glastron gs180 with a 150 ficht with 19 alum went from 49mph(speedo)@5300rpm, changed to 20 raker 54mph @ 5400 rpm. Raised engine so antivent plate was 3 inches above bottom of boat, no ventilation on take off and only a little on turns if over trimmed considerably. Hooked back up as soon you touched the trim down button

Cool, thats what I'm hoping for. Thanks for the comment.

 

[walleyehed]

Re: Did I do good???

Test run by raising ONE HOLE at a time...keep all variables as consistant as possible...small changes at a time so you know where the biggest changes come.
Each hole is worth 3/4" in heigth, if you're mounted directly to the transom, I'd recommend a water pressure gauge if you go up to the fourth hole.
On most boats, the third hole will put you 1-1/4" to 1-1/2" above boat bottom, possibly 2" on some hulls.