Neoprene Head Gasket for Prommies

[maverik-sg1]

I'd almost accuse that second photo of deliberately having all that crap behind it.

Yeah it does look a bit deliberate but the mach tube is only so long so it made sense.

She might not look like much - but she's the fastest in the UK

 

[GoLLuM4444]

Yeah it does look a bit deliberate but the mach tube is only so long so it made sense.

She might not look like much - but she's the fastest in the UK

I think dumo might argue with you there.

You might be right, but I dont see him in the hall of fames or top fo the CPC benchmarks?

Mav

 

[stocky]

Quality thread, dunno how I missed it

Just before I sold my MachII I had mastered the art of fitting the seal string and could swap the CPU in a matter of minutes. However, this neoprene idea looks as if it could be cut down to a matter of seconds

Form that pic it looks like you just cut a hole in the middle of the neoprene then just bolt it on? Is that right? Does it provide an air tight seal, and is dielectric grease required on either side of the neoprene?

 

[maverik-sg1]

Quality thread, dunno how I missed it

From that pic it looks like you just cut a hole in the middle of the neoprene then just bolt it on? Is that right? Does it provide an air tight seal, and is dielectric grease required on either side of the neoprene?

Thats what I did and it does, but the dilectric is a good idea as it will provide a better seal - but over a period of time (assuming it's petroleum based) neoprene will break down chemically from the exposure to the dilectric - a better gasket to use would be made from nitrile rubber for better compatability with petrleum based products.

A production gasket would just have bolt holes and a closer fit to the head punched through the neoprene.

MAv

 

[K404]

Theres part of mine, just for comparison. Its 3mm neoprene. Prob wont post any other pics of it just in case.

having some trouble getting the Mach head to sit over the plate screw risers, needs some bending before I`ll be sub-zero again.

K

 

[maverik-sg1]

Theres part of mine, just for comparison. Its 3mm neoprene. Prob wont post any other pics of it just in case.

having some trouble getting the Mach head to sit over the plate screw risers, needs some bending before I`ll be sub-zero again.

K

The shape of that is exactly what we need - Kenny can you draw up the dimensions? I can work with phil on a possible gasket set then.

Also

3mm is a bit too thick with the current design for the head 2mm would be ideal - could be good for the mobo tho'- the neoprene you are using kenny looks porous too?

Any chance of drawing up a set for teh mobo too?

Great work.

Mav

 

[K404]

Yup I can get a full set of dimensions together for ya. . Some might need changed as my gasket is based on an XP kit, but was thinking of sending the details to Phil anyway to see if posting more pics would be bad in any way- turning a discount XP kit into a £65 A64 kit on a large scale wont do him any favours

I took into account the thickness of the sheet and removed a couple washers from the screws to compensate

As for the porous-looking nature of the neoprene...I bought it off an Ebay shop and he stated in the item description it was non-porous, but will email him again. Might ask him if I can test it and he pays for any rig damage due to false advertising if things go pear-shaped.

Neoprene update: it passed the blow test... if thats a good enough way of safety checking the insulation on £500 of computer? LOL

Kenny

 

[scorchio]

Looking good it makes life so much easier not as messy and alot quicker plus you can use it more than once.

Yup I can get a full set of dimensions together for ya. . Some might need changed as my gasket is based on an XP kit, but was thinking of sending the details to Phil anyway to see if posting more pics would be bad in any way- turning a discount XP kit into a £65 A64 kit on a large scale wont do him any favours

I took into account the thickness of the sheet and removed a couple washers from the screws to compensate

As for the porous-looking nature of the neoprene...I bought it off an Ebay shop and he stated in the item description it was non-porous, but will email him again. Might ask him if I can test it and he pays for any rig damage due to false advertising if things go pear-shaped.

Neoprene update: it passed the blow test... if thats a good enough way of safety checking the insulation on £500 of computer? LOL

Kenny

 

[K404]

Guy got back to me and apart from reassuring me it was closed-sell I was using, went into great detail about structure, uses, differences and behaviour under some conditions. Which was reassuring...the guy has a pretty good idea what hes talking about

Heres a piccy of the Mach neoprene dimensions. There will be a small lip around all 4 sides using those dimensions.



@Phil...there was a random extra measurement in the one I sent you...I think this is more accurate

 

[GoLLuM4444]

Is that to scale?

You really have gone all out. No more cable ties and prit-stick for you?

 

[K404]

I can incorporate them if ya want! The prit stick is still present...it sticks (of sorts) the neoprene to my home-made hold-down. Theres still a bit of Seal String in there to stick that bit of neoprene to the Mach head.

EDIT: finally got my Mach head to fit onto the hold-down. So far so good..everything works. No nasty sparks or mini-waterfalls. Long may this continue. Will prob start the OC tomorrow.

EDIT EDIT: Dont wanna keep posting random wee things. Started the OC earlier, finished about 40 minutes alter. Memory controller appears to crap out at 265-ish. Damn! Took Mach off to think about putting my waterloop back on to find A/ condensation and B/ lots of it.

I`m VERY glad I used the conformal coating now. My seal obviously needs a bit of work. There was even some on the back of the mobo, and I thought that part in particular would be fine between the heater and the neoprene. Guess the seal wasnt 100% Also some around the CPU, but I did see that coming. Will leave it to dry out today and try water tonight. Once again, I`ve been luckier than I deserve.