Date: Wed, 18 Feb 1998 21:42:23 -0500 (EST)
From: Christie, Scott E. (CAP, GEFA)
Subject: RE: waterpump seals
Hey Bert - congratulations on your picture being printed in February's Practical Classics - which one of the Imps is yours?
Scott Christie
Date: Fri, 20 Feb 1998 03:51:51 -0500 (EST)
From: Gary Harding <101562.1150@compuserve.com>
Subject: RE: waterpump seals
Bert,
Something I'm trying is to rebuild water pumps before the bearings and seals become excessively worn and then only replace the bearings and reuse the old seals (if the seals are not corroded or damaged). The carbon track of the seals bed in to rotor of the pump and will provide a good seal only if the bearings ensure the rotor is central. If you do use new seals then the rotor will need to be skimmed to ensure the sealing face is completely flat (similar to the piston rings and the cylinder bore).
I believe that Malcolm Anderson is selling water pump overhaul kits and overhauled water pumps. The pumps are around £70 each.
Gary
Date: Fri, 20 Feb 1998 06:17:17 -0500 (EST)
From: Gary and Carol Henderson
Subject: RE: waterpump seals
Hi Bert and the rest
One common way of killing a perfectly OK waterpump is to place it face-down, resting on the fan cowl, whilst it is off the car during some other repair. Any weepage will go all the way to the front bearing because the water-collection groove and drain-holes cannot do their job in this position.
Misalignment of radiator to fan-cowl can deform it enough to cause fan-blade contact, this equals a rough time for the bearings also.
The bearings are so cheap and easy to get, that Gary Harding's suggestion is well worth considering.
Cheers
GaryH
Date: Mon, 23 Feb 1998 04:56:51 -0500 (EST)
From: Bert Clewits
Subject: Re: waterpump seals
Hi Guys,
Scott Christie wrote:
>Hey Bert - congratulations on your picture being printed in February's
>Practical Classics - which one of the Imps is yours?
>Scott Christie
Surprise surprise, I have to rush to the bookshop today, because I have no idea !!
Kristian wrote:
>Hi!
>Last time I talked to Malkolm Anderson he had these "renov. sets"
>Kristian
Yes that's what I need.
Gary Harding wrote:
> Something I'm trying is to rebuild water pumps before the bearings
>and seals become excessively worn and then only replace the bearings and
>reuse the old seals (if the seals are not corroded or damaged).
True !, I've skimmed all the faces of the rotors I want to reuse.
Also take great care when pressing the rotor back in the housing, once I went too far and couldn't turn the rotor anymore, so hammered it carefully back but the damage was already done, the pressure had broken one of the carbon seals.
The point is there should be some metal collars on the shaft which prevent this but you have to remove them before you can remove the old seal from the shaft (if I remember correctly).
Bytheway some pumps don't have these collars, there seem to be numerous different pumps around.
The bearings are no problem they are standard ones and similar like in the dynamo.
(I have three dismantled waterpumps in my workshop but they are collecting dust right now)
Thanks for the help guys I'll contact Malcolm !
Regards Bert