They replace the impeller each year here. Maybe our waters have more sand/silt that is rough on the impeller?
They do it when they summerize the boat.
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| Author: | woggy718 [ Fri Mar 30, 2007 10:33 am ] |
| Post subject: | Replacing Impellar |
I have heard (and learned the hard way with my old boat) that it's good to replace the impellar every 2-3 years. I replaced the impellar on my old Sundower on 4th of July weekend after it quit in the middle of the lake and had to get towed. I spent 4 hours on a Saturday replacing it myself in a Marina's storage barn. I don't want to have that happen again so I am going to replace the impellar on my new vista. Has anyone done this themself? The boat has a 5.0 GXI volvo. I know where the impellar it's easily accessable. Any adivce or pointers to replacing it? |
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| Author: | jvalich [ Fri Mar 30, 2007 2:45 pm ] |
| Post subject: | |
Piece of cake. Same setup. It's on the front lower left with the two 1.5" lines. Loosen the bar holding the pump from spinning, and remove the 4 screws holding on the front of the pump. I had enough play in the lines that I didn't need to remove them. I also used a cable tie around the new impeller to get the vanes bent in the appropriate direction, Get the impeller started and slip off the cable tie. Make sure you lube it very well with the glycerin included with the impeller. |
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| Author: | jkjmmat [ Fri Apr 06, 2007 9:23 pm ] |
| Post subject: | |
Replaced my 2004 impeller last summer. The boat was in the middle of it's 3rd season at the time. Impeller showed major signs of wear and would not have been much longer before I would be in your situation, hitched to another boat, smelling their fumes for a Loooong ride. After seeing my worn impeller, i would recommend replacing every 2 seasons or about 100 hrs to be safe. Follow the directions above as described by [b]jvalich[/b] and you should have no problems, back on the water in no time. |
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| Author: | mkivbren [ Mon Apr 09, 2007 7:15 pm ] |
| Post subject: | |
Hey Woggy, could you post or email a few pics when you do it? I need to do the same on my 5.0 GSi. mkivbren@hotmail.com Thanks! |
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| Author: | bugsdoc1 [ Wed May 09, 2007 2:52 pm ] |
| Post subject: | |
| They replace the impeller each year here. Maybe our waters have more sand/silt that is rough on the impeller?
They do it when they summerize the boat. |
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| Author: | woggy718 [ Thu May 10, 2007 2:44 pm ] |
| Post subject: | |
I replaced it no problem. The old one wasn't bad but better safe than sorry. One thing I did have a questions about was should there be some sort of gasket between the two metal pieces that make up the pump? |
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| Author: | Graham R [ Fri May 11, 2007 3:06 am ] |
| Post subject: | |
The pumps, certainly from 1999 onwards, perhaps also earlier, use an O ring to seal the two halves of the pump; fitted to the backplate and difficult to spot if the engine and pump is painted black! A new O ring is usually included in the VP kit. Regards, Graham |
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| Author: | scottmph [ Fri May 11, 2007 9:40 am ] |
| Post subject: | |
Usually comes with two , the o-ring with the green dot is for desiel applications (not sure what the dif is?) at least the last two I have bought for penta's. I replace once a year, keep the last as a emergency replacement, like teh others say easy as pie, took maybe 10 minutes first attempt. |
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| Author: | Jim_R [ Fri May 11, 2007 9:54 am ] |
| Post subject: | |
FYI - the Volvo Penta owners manual for your engine has a step by step guide to replacing the impeller, with diagrams and part numbers. Just go to: http://www.volvo.com/volvopenta/global/en-gb/marineengines/operators_manual enter your engine S/N, click search, and download the manual. |
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| Author: | mike288 [ Mon May 14, 2007 7:53 pm ] |
| Post subject: | Impellar Replacement |
Quick question on this one--does your boat have to be out of the water to change the impellar? mike288 |
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| Author: | wkearney99 [ Tue May 15, 2007 10:43 am ] |
| Post subject: | |
Around here (the Chesapeake) they often suggest yearly impeller changes. I keep two spares on board just in case of failure. Generally you can change impellers while in the water, just close the seacock feeding that engine. Beyond carrying spare impellers I've also made sure to have the correct wrenches and sockets necessary to perform the task. I keep the tools in a plastic 'ammo box' along with some silica gel packets to help ward off moisture and rust. But they're cheapie Harbor Freight tools anyway so WHEN they rust I won't be out much to replace 'em. |
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| Author: | AlexJ [ Tue May 22, 2007 11:05 pm ] |
| Post subject: | Water Leak |
If water leaks out from the impeller assembly when the engine is running, can you just try to tighten the bolts more or do I have to replace the seal? |
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| Author: | jvalich [ Wed May 23, 2007 10:36 am ] |
| Post subject: | |
Be very very careful about tightning the small screws. I broke on off on my port engine. It's not leaking but I will have to deal with it at the next impeller change. I would remove the pump and see if you can't get a replacement o-ring. Any generic one shoul;d work fine as it's not exposed to any organic solvents or strong acid which would require viton. |
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| Author: | mkivbren [ Wed May 23, 2007 12:09 pm ] |
| Post subject: | |
^^^!!! I was lucky enough to borrow a friends in/lb Snap Sn digital torque wrench for the install and let me tell you that the spec'd torque is next to nothing! 24in/lbs was the lowest setting on the wrench! |
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| Author: | bugsdoc1 [ Wed May 23, 2007 5:20 pm ] |
| Post subject: | |
 Where does one get the Torque Wrench you described? 
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