Thread: Installing Impellers
11-29-2005, 03:45 PM #1
I just came back from SD.net and noticed that the power to be is telling everyone to use red locktite when installing the impeller. I'm wondering how many do use it ? In my opinion this is absurd. I have always used an anti seizing compound on the the threads but NEVER locktite. The red makes a permanent bond and would have to be heated with a torch to remove the prop, possibly damaging the seals in the process. If the prop is torqued properly @ 83-84 lbs, the direction of prop rotation would make it practically impossible to loosen during use. If anyone had a prop unscrew on a PWC it was because they didn't bother to tighten it properly.
The props on boats usually have a tab that bends down to lock the prop nut on. This is because in "reverse" the prop could possibly loosen. I have never seen a boat racer who used the tabs because they seldom need reverse and the tabs slow a quick removal. Nor do they use locktite. If a prop is lost, it's because of a snapped prop shaft, not a prop that unscrewed by itself.
11-29-2005, 04:04 PM #2
I don't use loc tite either!~
11-29-2005, 04:28 PM #3
If I remember correctly, the prop spins clockwise whereas you spin the prop counterclockwise to loosen it. So how could the shaft spinning clockwise loosen a prop that tightens if spun clockwise?
11-29-2005, 04:55 PM #4
- Join Date
- Nov 2005
How long does it usually take to replace the impeller? Just curious
11-29-2005, 05:04 PM #5
with the right tools and a workbench or vice of some sort.... i guess 15 -20 minutes
put impeller tool in prop and take pump cone off, loosen and remove prop... put in new prop, tighten, pump cone back on
11-29-2005, 09:00 PM #6
- Join Date
- Oct 2005
I read that too! and just thanked Glen for the heads-up. I`ll have my pump off soon, so I`ll get a chance to see what`s up! if it`s tight or loose or if there is red lock tite on it...PR...
11-30-2005, 01:40 PM #7
- Join Date
- Jul 2005
- euxton nr chorley lancashire, england
i've had many a pump to bits, i've never used locktight, never had any problems, 1991 to 2005, 201 pumps aprox done
11-30-2005, 01:46 PM #8
Don't boats use nyloc nuts on the props?
Also, I have seen a prop come off in forward. I don't know how but it did. It may have been while slowing down.
11-30-2005, 03:54 PM #9Originally Posted by BOATADDICT
I lost props before, but only when the prop shaft snapped from too much torque when jumping out of the water and re entry. I never had or saw anyone who lost one due to a properly tightened nut backing off.
02-21-2006, 02:14 PM #10
Do use synthetic waterlproof grease to put on the impeller when you place it back on the shaft ?
What greases or oils do you use when you replace the impeller ?
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