Page 1 of 1
Leaking water pump Sprint
Posted: Mon Nov 28, 2016 10:53 am
by Keith CANSDALE
My pump is leaking coolant out of the slot on the block. I had the seals replaced only 18 months ago. Should I replace the whole pump or the seals and the impeller only? Thanks KC
Re: Leaking water pump Sprint
Posted: Mon Nov 28, 2016 10:55 am
by SprintMWU773V
When you replaced the seals did you machine the underside of the impellor? Also it is quite easy to damage the seal when re-assembling. If it's just a leak I would strip it down and inspect the pump before condemning it, they are both rare and expensive.
Re: Leaking water pump Sprint
Posted: Mon Nov 28, 2016 11:42 am
by Mahesh
Just a thought, I done my water pump over four times, and still had a leak from the slot.
The thermostat housing had a blockage on the small pipe to the expansion tank.
Re: Leaking water pump Sprint
Posted: Mon Nov 28, 2016 1:35 pm
by mahony
Another point to remember is that if the car has been laid up for a while it's not uncommon for the pump to leak from the slot but then stop after some use as the seal beds in again
Re: Leaking water pump Sprint
Posted: Mon Nov 28, 2016 2:22 pm
by cliftyhanger
I did my pump a while ago, and fitted the seal kit with the addition of a ceramic ring for the seal to run on. Actually quite simple, just need a lathe to remove a little metal and then glue (yep, supplier suggested silicon rtv) the ring in place. No leaks, and no reason to suspect it will be an issue for a very long time....
Re: Leaking water pump Sprint
Posted: Mon Nov 28, 2016 10:16 pm
by Flyfisherman
Keith CANSDALE wrote:My pump is leaking coolant out of the slot on the block. I had the seals replaced only 18 months ago. Should I replace the whole pump or the seals and the impeller only? Thanks KC
Here's a thread to read
viewtopic.php?f=4&t=7214&start=15#p109817
Paul