Impeller removal

[davidboddy]

Is there a way of removing a Jabsco impeller without having to go out and buy their impeller removal tool?

 

[pvb]

Lever with 2 screwdrivers, or grip the hub of the impeller with adjustable pliers.

 

[Anonymous]

pvb is right, that's how I do it but you are likely to nick it if you do it that way - especially if you are doing it at arm's length. It you are taking it out for winter maintenance and intending to put it back again, make sure you haven't caused even the tiniest nick, or bin it. If I took mine out for the winter (which I don't), I'd replace them as a matter of course.

 

[davidboddy]

Thank-you both for that advice. I am replacing it as it is broken.

 

[Anonymous]

Did you sort the 'locking device'?

 

[davidboddy]

I've decided to have another look tomorrow as I think I was just being dim! It didn't want to come out in the way described in the RYA diesel engine maintenance book and the instructions that came with the impeller suggested I needed a special tool. Presumably the metal threaded bit in the middle of the impeller simply slips into the groove in the middle?

 

[Anonymous]

Yes, it's a threaded stud going all the way through. Don't know why they use a threaded stud instead of a dowel, maybe it is screwed at each end, but it locates in the slot - simple as that.

 

[VicS]

[ QUOTE ]
Lever with 2 screwdrivers,

[/ QUOTE ] But be careful not to damage the edge of the pump body!

 

[samwise]

If you haven't done this before, it's worth mentioning that sometimes the metal core of the impeller seems to almost weld itself to the pump shaft and it can be the very devil to get off, even with the proper tool. In this situation, if you don't have a puller, the pliers option is best. You may well destroy the impeller in the process, but with the two screwdriver method I think the risk of damage to the pump body is very high indeed.

 

[Ramage]

On the Watamota engines you have to take the pump off the engine because that threaded grub screw goes through a hole in the drive shaft (No, it is not slotted on a Watamota). The puller is no good to you at all on these engines! And yes, it is a Jabsco pump and Jabsco impeller.

(Mine is a Watamota Sea Panther. I believe these were also used on some sail boats.)

 

[CPD]

Long nose pliers - works every time. Whilst at it, maybe also look at the speedseal device - I have put one on pipedream - its a nice bit of kit.