Viva GT: leaking water pump
You know it was bound to happen, its been all put together for a few weeks, and all going in the right direction. Then something from 2017 bites you and its all back apart again!!
Having put some coolant in the car a few hours ago, I went back outside to check and found a large pool of coolant on the floor below the engine. So after spending an age checking everything I have found where its coming from, the same place as it was last time! the spindle shaft FFS.
Back in 2017, I got the old pump rebuilt, alas it went wrong and a second attempt was made to rebuild the pump. It was my fault for supplying the incorrect kit (there are dozens of versions of water pumps for these engines). Read about that adventure here.
So looks like that rebuild attempt has not improved things, its worse than before. So I have had to strip the car right down to get to the water pump and undo weeks of work. I am not worried about rebuilding it all, as its all been worked out now, I am however concerned about getting a replacement pump. These are not cheap and getting one may involve re-plumbing the hoses again!
The pump itself is leaking from the small hole in the casting where one can see the spindle shaft, all I can assume is that when the original pump had its impeller pulled and rebuilt twice the seals were damaged or not set right. Either way I don’t trust this pump now, so will be looking for a new one. Thats going to be annoying as I am back at work on Monday, and will not have the freedom I have had over the last few weeks to call and travel to suppliers with bits required.
I didn’t take a picture of the hole in the pump (had enough already today) but here is an image from online of a similar Lotus pump where you can see the hole it leaks from, in case there is a misunderstanding.
Words from that website (where the above image came from) sort of ring true and saving a couple of hundred pounds at the time, and just getting a £50 rebuild kit are now proving cutting corners isn’t the right way to do things.