Heatkiller 3.0 O ring

fumbles22 · 4 Aug 2015 at 11:02

Hello,

Can anyone tell me the size of the O rings for a Heatkiller 3.0 waterblock?

I managed to buy a cheap Heatkiller 3.0, and i'm trying to get it working. The screws on the back had been stripped, so I had to drill those out. I also had to straighten the mounting brackets. However, when I opened the block, there were no o rings inside.

I've been trying to guess what the o rings are myself and, after ordering a few o rings that didn't fit, I thought someone here on overclockers could tell me.

O ring sizes that don't fit:

47mm x 1.5mm for the big one
22 x 1.5mm for the inner one

The thickness of the big one is definitely 1.5mm, but the inner one is thinner. It's probably 1mm (but i'm just guessing).

P.S: The O rings are circular, not heaxagonal or anything.

Any help would be greatly appreciated!

mushtafa · 4 Aug 2015 at 14:18

Pop down to your local motor factors or garage. Someone will have an assortment box full of different sizes.

Finners · 4 Aug 2015 at 14:51

Does it have the distribution plate inside it? if not then you could probably get away without the inner smaller o-ring.

Where are you based?

fumbles22 · 4 Aug 2015 at 19:34

It does have the distribution plate. I took these pictures from google images. In fact, my one looks a little worse than this. There's more oxidation on it which doesn't want to budge, even after the tomato ketchup trick.

My other waterblock is a Koolance 350. I wanted to know the outer diameter one, so I went to 3 different hardware stores. None of them had what I wanted. They don't seem to stock ones with a 1.5mm thickness.

I'm based in Southend.

Does anyone have this waterblock? Surely someone does, and replaces the O-rings every now and then?

.:SAmSuNG:. · 4 Aug 2015 at 20:20

I don't see why anyone would ever replace a o ting in a cpu block.

How cheap did you get this?

Have you tried emailing watercool to see if they can supply you the correct one rings?

Personally seems like a lot of hassle considering prices of used blocks that are fully working.

fumbles22 · 5 Aug 2015 at 07:02

I only got it for £5. It's the full copper version too.

If I know the O ring size, I can have this block for ages. I can just keep replacing the O rings.

I'll give heatkiller and email and see what they say. They have a phone number, but it looks like an international call (probably Germany) so i'll use that as a last resort.

.:SAmSuNG:. · 5 Aug 2015 at 08:05

I know ek can supply spares but even after spending loads of blocks they wouldn't just help a loyal customer out and we're asking a lot of money for a single part.

Hopefully watercool are more helpful.

zia · 5 Aug 2015 at 08:25

I would go down to your local motor factor and see if you can match one up?most motor factors have a selection of O rings in stock

Zia

fumbles22 · 7 Aug 2015 at 07:02

Hello,

I sent a message to Heatkiller customer support. Truthfully, I wasn't expecting a reply since they sell Heatkiller 3.0 o rings as a spare part (with £20 postage to the UK!).

However, I received a reply about 2 days later:

Hello,

you will need the following o-rings:

48x1,5 NBR 70
22x1 NBR 70

They are available as spare part. You will find them here -> http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/79250

Mit freundlichen Grüßen / Best regards,
Christian Bernhard
Sales & Marketing

Watercool e.K.
Zum Mevenbruch 6
D-17192 Waren-Warenshof
Germany

Tel. 03991-1822980
Fax. 03991-187602
www.watercool.de

Registergericht: Amtsgericht Neubrandenburg, HRA 1766

So, thanks Christian Bernhard! Heatkiller customer support has been excellent!