OLD style EK supreme HF

shadowscotland · 14 Dec 2011 at 20:47

After breaking a promise to my self about never buying a plexi top block.
I as with many others, got the EK supreme HF, nickle plexi version.

I got this before EK changed the shape to the square top.
And no surprise durring my current build log I fractured the top.

Long story short - after looking everywhere (not many HF in this shape where made)
EK found an old box of stock and I sourced a replacement Acetal top.
Happy days I thought - and QC make swapping out blocks really easy
Also worth noting EK send new button heads and seals :cool:

But all was not well on closer inspection...RMA time

Back to air cooling untill I can fully flush the loop.
On the up side with my D5@5 I have a home brew Mayhems Aurora
Link to video - that's not air it's silver and/or nickle!

Cleeecooo · 14 Dec 2011 at 20:49

please tell me you're getting another nickel plexi block?!

shadowscotland · 14 Dec 2011 at 20:55

Never putting Plexi in my loop again (but I accept that was my fault)
copper/acetal

Cleeecooo · 14 Dec 2011 at 20:56

shadowscotland said:
Never putting Plexi in my loop again (but I accept that was my fault)

*adds to ignore list*

Any reason you don't want plexi? I seem to break everything i touch but all my plexi is fine!

shadowscotland · 14 Dec 2011 at 21:04

The thing is, I was using metal primochill ghost fitting.
They don't even have a spanner socket - just a thumb turn Knurling.
How I over tighten them I'll never know (might be the smaller stock O ring - Hmmmm, will have a think about that)

Cleeecooo · 14 Dec 2011 at 22:12

shadowscotland said:
The thing is, I was using metal primochill ghost fitting.
They don't even have a spanner socket - just a thumb turn Knurling.
How I over tighten them I'll never know (might be the smaller stock O ring - Hmmmm, will have a think about that)

Generally, what I found that as long as you have it as tight as your thumb can twist without it hurting, then you'll be fine

Biffa · 15 Dec 2011 at 08:59

Heh, thats what he said.

Btw shadowscotland, nice clagging of the plate there

shadowscotland · 15 Dec 2011 at 10:08

@Biffa - soooo many tiny particals in my coolant at the minute - will take an age to flush

Just as well really most were just passing through the block without issue

The more I read around the more I think it's the O ring.
With it being so much smaller, see image below - it's more squashy.
Never had a leak with the barbs and the thin o ring is by design according to primochill.

But if the barb base and block top are not perfectly alined and/or flat, when you screw it down, with just a thin extra squashy buffer between them...
It's very easy to see how thumb tight may be to tight and cause locallised stress fractures.

From left to right - EK HF, Dtek HF, Primochill ghost

Well that's my thoughs on it anyway, still needs an RMA for the nickel issue

Glad EK extended the deadline

rjk · 15 Dec 2011 at 10:48

the nickel issue is really something that can be sorted quickly. good to see EK are responding well to the problem still.

I still haven't got EN blocks and my nickel is still fine, must have been lucky.

i see that issue with plexi all the time. doesnt happen with comp fittings as you tighten them by hand, but barbs usually get overtightened with spanners so it is inevitable.

I am liking acetal at the moment anyway, looks sleeker imho. and my cpu block has a copper top so that aint gonna break

Cleeecooo · 15 Dec 2011 at 16:08

Biffa said:
Heh, thats what he said.

rjkoneill said:
the nickel issue is really something that can be sorted quickly. good to see EK are responding well to the problem still.

I still haven't got EN blocks and my nickel is still fine, must have been lucky.
Don't you have older blocks (before they changed the nickel plating process?)

i see that issue with plexi all the time. doesnt happen with comp fittings as you tighten them by hand, but barbs usually get overtightened with spanners so it is inevitable.

I am liking acetal at the moment anyway, looks sleeker imho.

and my cpu block has a copper top so that aint gonna break

rjk · 15 Dec 2011 at 16:14

hush cleeecooo

we all know of your fetish for nickel plexi.

my supreme HF is an old, non EN one and my 590 block is an older one from before the nickel issue reared its head.

Cleeecooo · 15 Dec 2011 at 16:17

rjkoneill said:
hush cleeecooo

we all know of your fetish for nickel plexi.

my supreme HF is an old, non EN one and my 590 block is an older one from before the nickel issue reared its head.

It's not a fetish...

It's a need!

elmuzzy66. · 15 Dec 2011 at 22:54

Had the same thing happen to my old hf plexi/nickel. Could only find the white top for it. I just bought the full nickel e/n hf

Cleeecooo · 15 Dec 2011 at 23:30

elmuzzy66. said:
Had the same thing happen to my old hf plexi/nickel. Could only find the white top for it. I just bought the full nickel e/n hf

Atleast you stuck to nickel