Volvo PSS shaft seal

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cazzascotta

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Maybe this appear a bit strange, but a problem is: how do you get the grease into the PSS shaft seal squeezing the grease tube without deform the rubber and get the water in? Is there a trick to push the grease in at the right depth?
 
It's called Volvo Shaft Seal only.The PSS is another seal altogether.The Volvo seal has to be compressed by hand in such a way that water triclkes in and at the same time the tip of the Volvo grease tube is inserted between the shaft and the rubber and the grease is squeezed in.You can't put too much but you can put too little so be liberal.Use only the proper Volvo blue grease.
 
If it is a standard shaft seal as 30boat suggests....

There is a special tool - a very thin, split plastic bush that opens out to fit around the shaft. The outer surface of this should be greased with the Volvo Shaft Grease (Blue, very toxic grease) then the bush slid up the shaft and into the seal. Since it is thin walled, it easily penetrates the seal. Work it around a few times and the grease will transfer into the lips of the seal. Most of it anyhow!. A very easy & cheap solution-ask a volvo stockist for the correct size for your shaft. They should be pence.

It could be that the bush is meant as an assembly tool but I have found it's perfect for the greasing job too.

Good luck
 
Dont use the plastic sleeve, this is for installation only, you could damage the seal. Cut the corner off a bank coin bag or similar, put about a cubic centimetre of volvo blue grease in. Squeeze the seal with finger and thumb, insert the cut off corner about 1inch at 90deg. to your fingers then squeeze the grease into the seal pulling out slowly as you do. Never done it when in water, boat needs to be out water as you will have a job getting the grease to "stick" to the prop shaft.
 
Just fitted one of these (don't think that anything that has 'volvo' written on it is pence /forums/images/graemlins/grin.gif).

Hav'nt launched yet (Sat) but having a bit of a problem wondering how the seal is squeezed/compressed at all - I did manage to get some grease in by squeezing very hard and inserting the end of the grease tube - difficult to judge how much has gone in tho.

Its doubly difficult trying to do this with one hand whilst standing on your head in the depths of the quarter berth - job for a talented gynacologist /forums/images/graemlins/grin.gif

But I understand I need to 'burp' it once its in the water to let the water lubricate the cutless bearing part of the seal?
 
I was recommended by a volvo engineer to loosen the retaining clamp , slide the seal forward on the shaft and squirt Ramanol grease in. Then slide the seal back and retighten the clamp.
Is this OK ?
 
[ QUOTE ]
If it is a standard shaft seal as 30boat suggests....

There is a special tool - a very thin, split plastic bush that opens out to fit around the shaft. The outer surface of this should be greased with the Volvo Shaft Grease (Blue, very toxic grease) then the bush slid up the shaft and into the seal. Since it is thin walled, it easily penetrates the seal. Work it around a few times and the grease will transfer into the lips of the seal. Most of it anyhow!. A very easy & cheap solution-ask a volvo stockist for the correct size for your shaft. They should be pence.

It could be that the bush is meant as an assembly tool but I have found it's perfect for the greasing job too.

Good luck

[/ QUOTE ]

Entirely wrong! Do as Nedman explains. The split plastic 'ring' is SOLELY for protecting the lips on the seal when fitting the shaft and nothing at all to do with greasing. Follow Nedman's idea - we use a the corner of a strong polythene bag witht the corner cut off - and ensure that at least one cc of grease is injected.
I always put about twice this amount in the 'icing bag' to ensure I achieve that minimum.
 
Can it be done whilst it is in the water???

I tried to get some grease in the seal last w/e but I got bugger all in. Shame this thread was not earlier!! Anyway the boat will have been launched before I get to it on Saturday - so if it cannot be done in the water, I had better get the yard to do it.

Any thoughts?
 
Not successful to grease in the water, I wouldnt undo clamp on seal ,slide seal on shaft, then grease shaft as when you bring the seal back the lip seal will remove most if not all the grease and pile it up at the back.Best to do as suggested previously.
 
[ QUOTE ]
Can it be done whilst it is in the water???

I tried to get some grease in the seal last w/e but I got bugger all in. Shame this thread was not earlier!! Anyway the boat will have been launched before I get to it on Saturday - so if it cannot be done in the water, I had better get the yard to do it.

Any thoughts?

[/ QUOTE ]

I've never tried greasing the things in the water and suspect it may be difficult or impossible. However, it may be worth having a go by lifting the seal upwards against the shaft LESS than one would normally do, and then trying to squeeze the grease in. Ok, it'll make it harder to get the grease in ('cos the gap will be smaller) but you should get enough in to protect the lip-seal from any wear.

The route I'd go is to dry the boat out against some piles or jetty wall (no need to wait for high tide, just so the water's below the stern tube) and do the job properly.

Having said all that, I've got a mate who bought his boat second-hand and never knew the gland had to be greased. We were chatting about boaty things one evening over a modest tot, and the Volvo seal cropped up. It transpired that in the nearly six years he'd owned the boat, he'd never touched it!!!

It never leaked a drop!! He greased asap though and it was perfect until he sold the boat a few years later!
 
[ QUOTE ]
Can it be done whilst it is in the water???

Any thoughts?

[/ QUOTE ]Yes it can. I forgot to do it before putting our boat back in the water and managed to get enough grease in using the approved method. You will have to be prepared for some water coming through whilst you have the seal squeezed.
 
As the PSS seal

is a carbon block running on a stainless face, greasing it would be a very bad idea, similar to making holes in the bottom of your boat to let the water out.

Suggest you get confirmation, either from PSS in the States or Les Hill of Lake Engineering who's been importing for longer than anyone else.

Certainly I've not greased mine in the 9 years it's been in use.
 
[ QUOTE ]
[ QUOTE ]


It could be that the bush is meant as an assembly tool but I have found it's perfect for the greasing job too.

Good luck

[/ QUOTE ]

Entirely wrong! Do as Nedman explains. The split plastic 'ring' is SOLELY for protecting the lips on the seal when fitting the shaft and nothing at all to do with greasing. Follow Nedman's idea - we use a the corner of a strong polythene bag witht the corner cut off - and ensure that at least one cc of grease is injected.
I always put about twice this amount in the 'icing bag' to ensure I achieve that minimum.

[/ QUOTE ]

'Entirely wrong' that one believes it could be an assembly tool? A Volvo agent gave me mine for the very job of regular greasing. The seal's perfect after numerous greasings and 2000 hrs.
 
Well, with the greatest respect to him, he's wrong. The split plastic 'ring' is included in the box with the seal and full fitting instructions which clearly explain its use. Does it not seem odd to you that Volvo would omit to explain an alternative use?

The fact that they also include a tube of special grease with a nozzle might also be a clue.

My comments, incidentally, are based on the last one I bought and fitted (two years ago after 22 years with the original - still perfect - gland) as part of a major refit.

If Volvo have changed the whole installation set-up since in the intervening period, I offer my apologies!!
 
Re: Volvo shaft seal

[ QUOTE ]
Just fitted mine yesterday - instructions say grease every 200 hours running or annually.

[/ QUOTE ]

That's correct, though these seals do seem to possess an amazing ability to withstand abuse!! See my earlier post! /forums/images/graemlins/smile.gif
 
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