Volvo 2020 raw water pump - shaft seal

[alldownwind]

I know that water leaks from these dratted pumps have been discussed before, and I understand that if the shaft is not damaged, a new rubber seal at the back of the impeller chamber will do the trick.
Can anyone please advise a part number for the seal, and where it can be bought from? I'm not sure of the info on the Jabsco site, as they don't confirm that their pump is the same item.
Thanks for any help, gratefully received.

 

[thomashoebus]

I don't know what kind of pump you have but to replace the seal you have to take the pump off. On the cover of the pump you will find the pump number. You can use this. Or you could take the pump to your local dealer who will order it for u. Before ordering you could best open up the pump and check the bearings because it happens that when the seal is gone the bearings are also in bad shape and need replacng. Because this can cause the the shaft to be damaged. Once the shaft is damaged you better buy a new pump because the price of all the spare parts mostly exceeds the price of a new pump.

 

[Superflid]

If you can take the seal out and take it to a hydraulics supplier it'll be far cheaper.
That's what I did for my Johnson pump and got seals for (I think, so cheap I can't remember!) 50p each from http://www.rhondamaltd.com/ just 10 minutes drive away from me.

 

[alldownwind]

Thanks all. I just winkled the seal out and behold it has numbers on it ! Made by GACO, and says DPSM12247 on it. Also has figures '10' on it, I don't think it's a measurement. Anyway, looks like I've answered my own question - sorry to have bothered you!

 

[VicS]

A bearing stockist will have one or be able to get one. However when I last need a seal (for my high pressure pump) the bearing stockist I went to ordered what I wanted and got it in without delay but charged me many many many times the value of the seal for delivery. They could have sent someone in a taxi to pick it up for less!

 

[Avocet]

Try going to your local Bearing Services (BSL) with the seal. Gaco is a very common make. At a guess, I'd say that part number means it takes a 12mm diameter shaft, fits into a 24mm diameter recess and is 7mm thick.

One thing that's absolutely ESSENTIAL, is that you ask for one with a stainless or bronze spring. Most lip seals are "spring energised" i.e. there is a spring inside it to keep the lip against the shaft. If the seal is working against salt water, you MUST specify stainless or bronze because the standard seals tend to just have ordinary carbon steel springs in them.

 

[alldownwind]

Thanks for that, Avocet. Interestingly, the spring doesn't look too good!