Impeller sharpening

User avatar
moelkhuntr
Posts: 165
Joined: 23 Oct 2010, 00:02
10
Location: SE MO

Impeller sharpening

Post by moelkhuntr »

Turner032, if I am looking at your picture right, you sharpen the opposite side of the impeller than Lil Blue Rude. Am I seeing right?
18/52 Blazer, 115 HO E=TEC

Image

User avatar
Lil' Blue Rude
Posts: 751
Joined: 13 Jan 2011, 00:58
10
Location: SE, Mo

Impeller sharpening

Post by Lil' Blue Rude »

Yep he does.
16' 42" Blazer SS with a custom short shaft 60/40 Evinrude

User avatar
moelkhuntr
Posts: 165
Joined: 23 Oct 2010, 00:02
10
Location: SE MO

Impeller sharpening

Post by moelkhuntr »

That throws my pea picken brain in a tail spin then!!! WHO IS RIGHT!!! Just try and see which way works best for you?
18/52 Blazer, 115 HO E=TEC

Image

User avatar
turne032
Posts: 96
Joined: 23 Mar 2009, 01:37
11
Location: Current River Missouri

Impeller sharpening

Post by turne032 »

i guess my advice is that a sharp impeller will run faster than a dull impeller. I know everyone sucks up rocks, and sometimes you cant help it. but if you make an effort to keep your impeller sharp, that is where the grunt of your performance comes from.

sharpening top vs. sharpening bottom = chevys vs. fords
I want a boat that drinks 6, eats 4, and sleeps 2.

User avatar
optaylor823
Posts: 110
Joined: 22 Feb 2009, 11:01
12
Location: Spring Hill, TN.

Impeller sharpening

Post by optaylor823 »

That polished impeller looks nice, but would not last long the way I run my boat. It sees to many rocks and gravel shoals to stay that way. I agree a sharpened impeller does help. I see the biggest difference in my hole shot. When my impeller gets to bad I have to ease into the throttle and start off slow, because the RPMs get to high and the jet goes to sucking air. I do not see much difference in the top end, but of course I am not looking for top end since I run a dangerous river with a 16' boat and a converted 175 that will only run about 40 mph and most days I only run about 30, so I am not using a lot of gas and it gives me time to see obstacles.

User avatar
Codeman
Posts: 888
Joined: 16 Nov 2007, 15:00
13
Location: Ozark Foothills of Se Mo

Impeller sharpening

Post by Codeman »

Question. My impeller has some pretty severe cavitation burns on it. They are old and don't appear to have gotten any worse since I redid the transom and everything on my boat. How much are they costing me in efficiency? I'm thinking its just time to bite the bullet and buy a new impeller/ liner and be done with it. Any of you guys gone to stainless and have a 6 1/8 Aluminum in decent shape laying around that you want to sell?
Image
If it wasn't for the last minute I'd never get anything done.

User avatar
Raven205
Posts: 6
Joined: 23 Aug 2020, 21:11
Location: Parkland County, Alberta

Impeller sharpening

Post by Raven205 »

Old post but very useful information..
What are the Odds that Lil Blue Rude would post his pictures again, they seem to be missing...
That would be awesome!
Explorer Industries 162 - 60/40 Yamaha

gotmuddy
Posts: 280
Joined: 21 Nov 2008, 03:20
12
Location: Viola, AR

Impeller sharpening

Post by gotmuddy »

Raven205 wrote: 02 Jan 2021, 18:05 Old post but very useful information..
What are the Odds that Lil Blue Rude would post his pictures again, they seem to be missing...
That would be awesome!
that would be great.

User avatar
Raven205
Posts: 6
Joined: 23 Aug 2020, 21:11
Location: Parkland County, Alberta

Impeller sharpening

Post by Raven205 »

I found this on the Explorer Industries FaceBook..
You do not have the required permissions to view the files attached to this post.
Explorer Industries 162 - 60/40 Yamaha

gotmuddy
Posts: 280
Joined: 21 Nov 2008, 03:20
12
Location: Viola, AR

Impeller sharpening

Post by gotmuddy »

Raven205 wrote: 02 Feb 2021, 17:00 I found this on the Explorer Industries FaceBook..
great comment! This should be a sticky

User avatar
Raven205
Posts: 6
Joined: 23 Aug 2020, 21:11
Location: Parkland County, Alberta

Impeller sharpening

Post by Raven205 »

LOL It is opposite of the Outboard Jets instructions. I was hoping Lil Blue Rude would chime in with comments as I think this is how he does it to, he may have a few good suggestions.. I have been working over the old spare impeller that came with my boat but did the wrong side to start with.. Sigh. Three more months to try it out. These instructions were buried deep on Explorers Facebook page.
Explorer Industries 162 - 60/40 Yamaha

User avatar
Lil' Blue Rude
Posts: 751
Joined: 13 Jan 2011, 00:58
10
Location: SE, Mo

Impeller sharpening

Post by Lil' Blue Rude »

That's pretty much the profile I try to put on mine. Couldn't find any of my old pics.
It's backwards from what outboard jets says and most guys will argue it's wrong. :roll: Quicksilver stainless impeller come factory with this style edge, they bite better and normally gain on topend.
16' 42" Blazer SS with a custom short shaft 60/40 Evinrude