Removal of raw water pump on VP 2003 engine: is it dead easy, even for an engineering numpty?

[NealB]

The raw water pump on our VP 2003 has a steady drip from the gaps in the body behind the front cover.

Removal looks easy enough, to my ignorant eyes:

- disconnect the inlet and outlet pipes
- remove the three bolts
- pull the pump forwards (should it pull easily by hand, or is some sort of puller needed?)

Can any of the experienced old hands add any words of wisdom or caveats, please?

 

[LONG_KEELER]

I don't think you will have a problem removing it.

Either the lip seals, shaft, or ball race bearings will have failed.

Volvo do a kit comprising of the above. Pressing the new bearings on to the shaft will require a very strong vice.

You may be able to buy an exchange unit from Volvo or a Volvo dealer.

 

[NealB]

I don't think you will have a problem removing it.

Either the lip seals, shaft, or ball race bearings will have failed.

Volvo do a kit comprising of the above. Pressing the new bearings on to the shaft will require a very strong vice.

You may be able to buy an exchange unit from Volvo or a Volvo dealer.

Many thanks, particularly for the confidence-inspiring first sentence!

 

[AntarcticPilot]

I've done it, and I'm no mechanic.

 

[rib]

Mr numpty don't forget to close inlet pipe first ??

 

[NealB]

Mr numpty don't forget to close inlet pipe first ??

Mr Numpty is, most unusually, one step ahead of you ........ she's ashore!

But thanks for the worthwhile thought

 

[AntarcticPilot]

Mr numpty don't forget to close inlet pipe first ??

You mean like I once didn't?

 

[NealB]

You mean like I once didn't?

Ooh ...... where's the confessional?

 

[AntarcticPilot]

Ooh ...... where's the confessional?

Bless me, for I have sinned...

 

[Gwylan]

Mr numpty don't forget to close inlet pipe first ??

Done that too! A focusing moment!

Otherwise it was not hard for me to replace the bearings. A fraction of the VOLVO costs for a pump.

Or replace the pump. Then refurbish the old pump and have a spare.

 

[Ceejay]

Pressing the new bearings on to the shaft will require a very strong vice.

In the past I found that leaving the shaft in the freezer overnight and placing the new bearings in a warm oven for twenty minutes allowed the new bearings to tap on to the shaft easily.

 

[AntarcticPilot]

In the past I found that leaving the shaft in the freezer overnight and placing the new bearings in a warm oven for twenty minutes allowed the new bearings to tap on to the shaft easily.

I too had little trouble getting the bearings on the shaft: they are a press fit, but as far as I recall, firm pressure was all that was required.

 

[Quandary]

I did it a couple of times, my recollection is that the seals and bearings are generic and commonly available significantly cheaper from a specialist than from VP.

 

[AntarcticPilot]

I did it a couple of times, my recollection is that the seals and bearings are generic and commonly available significantly cheaper from a specialist than from VP.

But they aren't that expensive from a VP engineer. ISTR it's the shaft that's expensive, and that isn't a generic part

 

[NealB]

Thanks for all the replies.

I'm just back home from the boatyard.

Total removal time: a touch under 20 minutes ( of which half were spent searching round the bilges, under the sump, for the dropped 13mm socket).

Onwards and upwards (rebuild or replace?).

 

[Thetone1]

This is my first Volvo engine. It's a 1990 2003. I'm not familiar with the type of connection between the pump and the copper pipes. Looks like 0 rings are involved. Any advice would be greatly appreciated.

Thetone

 

[vic008]

My tip for the thermostat style seals ; had put one in and it dripped. Came back next day and it had stopped. I called that a win.

 

[scottie]

Don’t bend the pipes
when you disturb them loosen BOTH ends that way they will have e better chance to get them to seal

The sealing is great idea in concept but very poor in practice

 

[Thetone1]

Can I replace them with regular rubber hoses?

 

[scottie]

Not easy as they rely on the pipes being in tension to retain them if they have just O Rings