Volvo Penta 2002 - water pump

[ChattingLil]

I was about to repair/service the water pump on a VP2002. I can only access the engine from the front and by some contortion over the top front quarter. The water pump has a metal pipe leading back and I can't get at it without removing the water pressure canister thing and other obstructions. This coming weekend, I will remove all the obstructions so that I can get to the end of the pipe - the pipe then attaches into short piece of hose. My question is this: is there any reason why I should NOT cut the metal pipe and replace it with a longer piece of hose while I am in there and have access? That way, if I ever need to remove the pump again it will be much easier - ie I won't have to remove all the gubbins to get at the back end of it to unclip the long pipe.

 

[prbw]

Volvo 2002 Water Pump

As I recollect, the metal pipes into and out of the water pump are a push-in fit with sealing washers, so you may not need access to anywhere else but the front of the engine. You will find a schematic of the system, among lots of other very useful Volvo Penta info on http://www.marinepartseurope.com/en/e-volvo-penta-10-2002.aspx. Hope that is helpful.

Cheers

Pete

 

[ChattingLil]

As I recollect, the metal pipes into and out of the water pump are a push-in fit with sealing washers, so you may not need access to anywhere else but the front of the engine.

Thanks - that's actually what I thought, but there is no way I can get it to come out. It seems to be one part. Any ideas on how to get it to come apart - or when to give him without completely sodding it up first?

 

[prbw]

I'm afraid that its a few years since I did mine, so the details are a bit hazy, but I certainly do not recall any problems simply pulling the pipes out of the pump prior to removing it.

 

[MoodySabre]

A better view available here
and some detail

Mine is leaking and I need to do the seals some time so let me know how you did it

You could ring John Rook at Althorne Marine and say I gave you the number and ask him (as a potential customer cough cough). He is based at Fambridge 07939 100822. Helpful bloke.

 

[ChattingLil]

A better view available here
and some detail

Mine is leaking and I need to do the seals some time so let me know how you did it

You could ring John Rook at Althorne Marine and say I gave you the number and ask him (as a potential customer cough cough). He is based at Fambridge 07939 100822. Helpful bloke.

Thanks - actually John Rook did a pre-purchase engine survey on the boat, so I know of him.

The expoded diagram shows that the pipe does indeed come out - but I can't make it do that. Any tips of coaxing the parts apart? Concerned that I'll just force it and break something.

 

[scottie]

volvo pipes

Volvo used a system which relies on the two ends of the pipe holding the pipe in compression like a bow string to achieve sealing
there are two types of seal one a square section rubber push over seal about ten mil from the end the other is sectioned seal which locates on a belled end of the pipe

the pipes require to be released at each end before removal some and I believe the pipe you refer to is also held with a p clip
If you just pull the pipe out you will have difficulty in resealing the pipes

deatails here http://www.marinepartseurope.com/en/default.aspx

 

[pvb]

The expoded diagram shows that the pipe does indeed come out - but I can't make it do that. Any tips of coaxing the parts apart? Concerned that I'll just force it and break something.

The pipes have lugs on them, with bolts securing them to the engine. The intake pipe has a P-clip too, I think. Once the bolts holding the pipes are removed, you should be able to pull the pipes straight out of the pump.

 

[ChattingLil]

The pipes have lugs on them, with bolts securing them to the engine. The intake pipe has a P-clip too, I think. Once the bolts holding the pipes are removed, you should be able to pull the pipes straight out of the pump.

hmm, clearly doing something wrong because have done all that, ie removed the bolts. The pump comes loose and seems to be only attached by the long pipe leading back and clipped on to the rubber hose.

I'll take some pics at the weeeknd and post again if I am still stuck!
thanks for the replies.
Lisa

 

[Bilgediver]

Thanks - that's actually what I thought, but there is no way I can get it to come out. It seems to be one part. Any ideas on how to get it to come apart - or when to give him without completely sodding it up first?

Beware!!!!!

I believe the design of the pipes is such that when assembled in the correct sequence the associatd assembly holds the pipes in place and not just the pure friction of the pipe in socket connection . There maybe occasions where the pipe socket is secured by a forked clamp engaging on a flange. If you cut the pipe then ensure you have some way of securing the pipe in the pump other than the push fit.

The pipes are sealed with rubber o rings and you might have to pull hard if it has fused to the pipe and pump socket


The pipe from the pump to the cylinder can thingy(heat exchanger) is using the assembly to secure it in position however this lever arm could be maintained even if you cut pipe 14 near the heat exchanger and then put a 4" length of hose over the cut secured by jubilee clips. This retains the lever arm effect in case the pipe to pump bolt comes lose and may make things easier for you by allowing you to break the joint where you insert the hose coupler at the saw cut.

 

[penfold]

Horrid pushfit rubbish; this was a source of much springtime fitting-out swearing on dad's last boat.

 

[ChattingLil]

thanks for the replies. I'm glad we persevered with loosening the pipe, because it came clearly away in the end.

so - have now removed the pump and removed all the old bearings and shaft. Problem now is that there is no way this is a home diy job with ordinary domestic tools. I can't put it back together. the shaft and new bearings are SUCH a tight fit that I am going to have to seek help. and I thought I was doing so well!

 

[Bilgediver]

thanks for the replies. I'm glad we persevered with loosening the pipe, because it came clearly away in the end.

so - have now removed the pump and removed all the old bearings and shaft. Problem now is that there is no way this is a home diy job with ordinary domestic tools. I can't put it back together. the shaft and new bearings are SUCH a tight fit that I am going to have to seek help. and I thought I was doing so well!

See if you can find a friendly motor mechanic with a press.