Servis super twin service

[adam-aussie-vac]

Hey guys, does anybody have any knowledge on how to remove the pulley driven pump from The Twin tub, as the seal in the pump has gone and I’m wanting to repair it so I can get it into working order or if worse comes to worse replace it with an electric pump

 

[gizmo]

vague memory...

I think you take off the rubber tyre and underneath there is a grub screw you remove with an allen key.

The screw might not be under the tyre, it might be on the hub, I don't remember. It was over 20 years ago I last played with one of these. But it is there... Look on the shaft, if you can see a flat, that is where the grub screw will be.

 

[adam-aussie-vac]

Oh I don’t mean just removing the police, I meant removing

I meant removing the entire pump assembly, so that way I could replace the seals inside it

 

[gizmo]

Remove the entire pump

That is the easy bit.

It's a single bolt through the body of the pump. Maybe 1/2 inch nut?

Should be pretty obvious. Just undo the nut, then slide the pump off the stud (bolt.)

You can see the nut clearly in photo 2. Near the pulley.

 

[adam-aussie-vac]

Oh cool, I’ll definitely do that tomorrow and

You mean the knot in between the poly and the bolt with rust on it?

 

[adam-aussie-vac]

Oh cool, I’ll definitely do that tomorrow and

You mean the knot in between the poly and the bolt with rust on it?

 

[ozzie908]

I think its the nut where the straw is ! Move the pump back and forth and see where it pivots thats usually the bolt that holds it on.

 

[ozzie908]

Take the front panel off that help a little make it easier to see what's what

 

[adam-aussie-vac]

Okay

How do you take the front panel off?

 

[adam-aussie-vac]

Good news I got the pump out

Bad news is I don’t know no where the seal goes or even if there is a seal

 

[adam-aussie-vac]

So I’ve taken the pump apart completely, where would I find the seal for it and I noticed how there are appears to be some sort of little oiling well thing in the pump shaft, would that help create a seal or what?

 

[ozzie908]

@adam

Where did you see the leak coming from? Was it down the shaft of the impeller or around the edge of the body??

 

[adam-aussie-vac]

It came from the shaft And previously

And There was an issue where previously one hour was trying to drain the washtub, the pump wouldn’t prime but once it was primed it would Leak water from where the shaft is I honestly am kind of thinking about changing it to an electric pump But I don’t want to unless the original pump I can’t really repair

 

[ozzie908]

@adam aussie vac

Hmm I think it most likely would not turn as never known a Servis pump to not be primed, But a first time for everything...
Try cleaning all the gunk off the shaft I have a suspicion that the leak may not be repairable as there is no seal to my knowledge inside it was done bu machining a very smooth tight fitting shaft and you were right the oil in that port made it water tight all you can do is clean it all and grease it and see if you can get it to work.
But if not maybe a replacement could work instead?

 

[adam-aussie-vac]

Oh cool, I didn’t realise it was such a tight seal

That oil actually makes the seal, that’s kind of surprising, I’ll try probably putting some three in one oil into it and then making sure that seals hopefully,

 

[slowspin66]

To replace the seal is easy . If it’s a standard lip seal these are available from all good bearing shops . The shaft should be made of of a non ferrous metal. Take a photo of the seal and post it . I’ve taken seals out and they have fallen to bits so i have taken the pump body and the impeller shaft and the seal shop will measure the diameters for you and get the correct size . The shaft size is the most critical element as the outer seal size can be bonded in using a good gasket silicone . I’ve found this works fine . Good luck but it’s an easy fix this is a pump I refurbed for a friend a few weeks ago . The seal is brand new . Best wishes Darren

 

[slowspin66]

Most can be saved

This is the pump before repair
You can see it’s not good plenty of holes . The red colour inside is a resin concoction I make to protect the metal surfaces from the water and soap to prevent further problems down the line …

 

[adam-aussie-vac]

It doesn’t appear to be a standard lip seal

As it looks like it’s metal, I’ll take the pump back out of the twin tub and then grab photos of it, what would you recommend as a gasket material?

 

[slowspin66]

Gasket

If I have no originals I always use thin pond liner . Make a template out of the top of the pump
And where the screw fixings go through I use a hole punch …you can get off cuts very cheaply off eBay ..