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Prop cup wear?
https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=49303		 Page 1 of 1
Author:  B Alsabrook [ Sat Jan 18, 2014 3:08 pm ]
Post subject:  Prop cup wear?
How can you tell if you've worn out the cup of a prop? Is there a way to measure this or is it just best guess visual inspection?
Author:  coupe1975 [ Sat Jan 18, 2014 4:21 pm ]
Post subject:  Re: Prop cup wear?
The edge of my prop gets so sharp you could shave with it.

Get a tape and measure across widest part. Then compare it against what a new prop should be
Author:  B Alsabrook [ Sat Jan 18, 2014 7:58 pm ]
Post subject:  Re: Prop cup wear?
Yeah. I measured the length of the blades. They were 5 1/2 inches. Then called manufacturer and they told me 5 1/2 is normal new prop length.

The reason I'm asking is I've lost about 4 mph on speed.

After the lady said the 5 1/2 inch length she asked me if I'd worn the cup of the prop down but I'm not sure how to determine if its messed up.
Author:  SETx Longtail [ Sun Jan 19, 2014 10:20 am ]
Post subject:  Re: Prop cup wear?
Post a pic of it...

Along with the speed loss have you noticed your RPM's creeping up?
Author:  Gtr18x42 [ Sun Jan 19, 2014 2:14 pm ]
Post subject:  Re: Prop cup wear?
u can have just the cup put back in if u need to thats prolly where your speed is goin
Author:  B Alsabrook [ Sun Jan 19, 2014 2:50 pm ]
Post subject:  Re: Prop cup wear?
I have not seen rpm increase. It's still between 3820 to 3890 rpm. It's on a godevil (don't laugh) and the trim knob has not been moved.

Here's some pics

[img]http://img.tapatalk.com/d/14/01/20/8e7usymu.jpg[/IMG[IMG]http://img.tapatalk.com/d/14/01/20/py8ype7e.jpg[/img][IMG]http://img.tapatalk.com/d/
14/01/20/anyredyv.jpg[/IMG]
Author:  B Alsabrook [ Sun Jan 19, 2014 2:53 pm ]
Post subject:  Re: Prop cup wear?
Let's try this again
Author:  coupe1975 [ Sun Jan 19, 2014 3:50 pm ]
Post subject:  Re: Prop cup wear?
Looks like the cup is there.

Try not to pick up the fat girls! :lol:
Author:  B Alsabrook [ Sun Jan 19, 2014 4:07 pm ]
Post subject:  Re: Prop cup wear?
Yeah. Don't think the wife would like fat girls wearing out her seat in the boat.
Author:  coupe1975 [ Sun Jan 19, 2014 5:50 pm ]
Post subject:  Re: Prop cup wear?
Good response. Cup looks ok
Author:  B Alsabrook [ Sun Jan 19, 2014 6:05 pm ]
Post subject:  Re: Prop cup wear?
Good deal. Just didn't really know what to look for. Wanted to be sure it looked good since I just signed up for the SETX mud run. I may go ahead and order a new one so I have a spare.
Author:  coupe1975 [ Sun Jan 19, 2014 8:40 pm ]
Post subject:  Re: Prop cup wear?
Well, see ya there. I'd run the old one. Have you tried shifting some weight around?
Author:  B Alsabrook [ Sun Jan 19, 2014 8:52 pm ]
Post subject:  Re: Prop cup wear?
I think I got it balanced pretty good. Tank up front. Battery in rear. I ride as close to center of boat as I can and still drive. No other weight in boat except safety gear. If I have any other gear in boat it rides towards front. It may be from unseen weight. Mud/ sand in boat under the sides that I can't see. It's been a while since I power washed it out.

This prop I have now has been going for 2 seasons now so I think its done good do far.
Author:  coupe1975 [ Sun Jan 19, 2014 9:20 pm ]
Post subject:  Re: Prop cup wear?
Ca, c'est bon! I figure on one a year atleast. Now I'm in it 1-3 times a week and run in sandy hard bottom skinny water beaucoup. My godevil longtail runs a 9x3 and when I replaced it it measured 7¾". Just a Tad bit of wear.
Author:  B Alsabrook [ Sun Jan 19, 2014 9:59 pm ]
Post subject:  Re: Prop cup wear?
Yeah. I run hard sandy bottom too. I just don't dig it in. I let it float and slowly ease out to deeper water. I'll see ya in south Texas soon.
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