Volvo Penta D6 impeller removal

[mcanderson]

For the love of dog!

I tried to change my impellers (D6-330 A-B), getting access is fine, but I can’t get the buggers to move out of the pump. Looking on line I see there is a Volvo Penta impeller removal tool which does some D6 engines that consists of a bolt in side another bolt. You screw in the larger bolt t the impeller then tighten the inner bolt to allot pressure to the impeller shaft and the impeller comes out. However I swear that my impellers are not threaded in anyway.

This leads to me suspecting that I need to buy a traditional impeller puller, but before I buy another tool can anyone confirm how they remove the impeller from a D6-330.

Link to the VP tool http://www.falmouthyachtbrokers.co....or-Impeller-22994993-Part-Number-3843949.aspx

 

[jimmy_the_builder]

Hi S, I've done it with a pair of screwdrivers before, but now have a proper impeller removal tool. Mainly though I use a bloke called Neil.

 

[mcanderson]

Thanks Jimmy, which tool do you have that isn’t called Neil. I want to be able to change it myself if I ever have a problem. Tried the two screwdriver way, but was getting worried about pump damage.

 

[jimmy_the_builder]

Thanks Jimmy, which tool do you have that isn’t called Neil. I want to be able to change it myself if I ever have a problem. Tried the two screwdriver way, but was getting worried about pump damage.

One of these. They come in two sizes, I have both but from memory I think it's the smaller size that you need for the D6.

https://www.marinesuperstore.com/marine-pumps/impeller/jabsco-impeller-removal-tool

 

[mcanderson]

Superb! Merci!

 

[jrudge]

Spraying WD 40 all over it does make a difference as the rubber / metal interface is lubricated. I use this when doing the Onan gen one as otherwise they can be a bugger to get out. Helps get them in for the same reason as you need the thing to locate on the shaft and then push in.

 

[Andrew M]

And if the impellor is really tight and you can't get enough grip from the fingers into the impellor by screwing in by hand using the plastic turn handles, then you can remove that plastic turn handle headed bolt and replace with a hex head bolt and wind them in more with a socket or spanner on the hex head.

When it comes to fitting the new impellors in, If you do have an internal thread on the pump shaft then you can drive the new impellor in by using some studding into the shaft with a large washer and nut and turning the nut will drive the impellor in, that's what seems the best way on our D12's which are buggers to get back in.

 

[[2068]]

Easiest way I have found is simply to remove the seawater pump!
A couple of hoses and a few bolts, and you have much easier access - you'll probably still need a proper puller.

 

[Advantage]

Spraying WD-40 generously at and around the impeller will help significantly. Spray it then crank the engine without starting it. That way the impeller fins get lubricated. Then use the Jabsco impeller puller.

This should get it out no problem. After the old impeller is removed, wipe out the excess WD-40 in the water pump. Use the liquid that came with the new impeller to lubricate it before installing.

For reference, I have Volvo Penta D6-350s.