CurtPalme.com Home Theater Forum

SweetChuck · Posted: Tue Mar 11, 2008 1:30 pm Post subject: 9500 Fungus Back with a Vengance

I had fungus all over the C elements a few weeks back and tried to clean it out with CLR , it worked for a little while but now it seems to have come back even worse . Its in the red and blue tubes , and I can't for the life of me separate the element from the bellows . Any suggestions?? and where can I get new glycol for a reasonable price , I just got this projector and a little pissed I'm already spending money on it .

Thanks

JustGreg · Joined: 07 Mar 2006 Posts: 3098 Location: Kenosha, WI

There's a link to glycol and cleaning process here in this thread. It's for a 1292 but I would assume the parts and cleaning procedure are the same or close.

https://www.curtpalme.com/forum_archived/viewtopic.php@t=8560.html

Hope this helps.

Greg

Ile · Posted: Tue Mar 11, 2008 3:06 pm Post subject:

Clr + new glycol should help.

http://www.mgchemicals.com/products/803.html
http://www.mgchemicals.com/distributors/intl/index.html#australia

http://www.avsforum.com/avs-vb/showthread.php?t=1005728

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Also I have read somewhere you might need to add an anti-fungus solution to the glycol, or there might actually be an anti fungus glycol on the market.
here is a patten for it but i cant find the actual product.
http://www.freepatentsonline.com/4551532.pdf

Athanasios

PaulB · Posted: Tue Mar 11, 2008 9:51 pm Post subject:

If you are having problems removing the C-Element it may be because its been siliconed in. Two of my three tubes had siliconed C-Elements. I had to cut both of them out in order to clean contamination in the LC chamber, tube face and on the rear of the C-Element. Replacing the Bellows is straight-forward and a lot easier to do the second-time.

I refilled one tube with new glycol and found that after a few weeks that there was contamination beginning to appear from the filler/bleed screws which are made of Iron. A silvery small air bubble slowy developed at the bottom of the screw in the bleed hole and when I undid the screw the bubble sort of burst and I could see glob-like material floating down the tube face. Since then I've removed the screws and am awaiting stainless steel screws and loctite which will hopefully stop any further contamination from that source.

Have you tried putting your fingers into the both sides of the bellows and pushing the C-Element from the inside? The bellows are just stretchy enough to get a couple of fingers in to push the back side of the C-Element. I managed to get one out that way but like I said, the siliconed ones had to be cut out. I had no luck at all trying the recommended method i.e using a screwdriver to prise the edge of the element out.

Paul

SweetChuck · Posted: Wed Mar 12, 2008 12:11 am Post subject:

Thanks for replies and contacts Very Happy

jeez I hope I dont have to cut my bellows out , sounds like a major PITA Evil or Very Mad

draganm · Joined: 08 Mar 2006 Posts: 8990 Location: Colorado

I don't understand how the contaminants came back so quickly. After the first time you cleaned the chamber out did you put in fresh Glycol or re-use the old stuff?

SweetChuck · Posted: Wed Mar 12, 2008 12:16 am Post subject:

I filtered the old glycol and put it back in as I don't know where to buy fresh stuff locally , it would explain the problem though .

Wow got a price on coolant $24 for 500ml , cheap . So how much would I need for 2 tubes ??

PaulB · Posted: Wed Mar 12, 2008 8:04 am Post subject:

draganm · Joined: 08 Mar 2006 Posts: 8990 Location: Colorado

Heywood Jablome · Joined: 12 Mar 2006 Posts: 1548

Bruce 09 · Posted: Wed Mar 12, 2008 6:11 pm Post subject:

There is also the very good chance it was not flushed throughly and it just agitated the oxidized solids . You should not reuse the same Glycol that is contaminated as it has a good chance to re-crystalize with whatever is left there in suspension ( what did you use to filter the glycol) Flush very throughly this time .

Bruce

Mark_A_W · Posted: Fri Mar 14, 2008 2:12 am Post subject:

They should have black anodised the castings like NEC or Sony did...

You can buy 20l of glycol from a chemical supplier for a reasonable fee.

You then need to mix it with 30% glycerine/glycerol - get it from the chemists if you are desperate.

SweetChuck · Posted: Wed Apr 02, 2008 12:45 am Post subject:

I ended up having to separate the the bellows from the tube . Painstaking job !! Most of the fungus was stuck to the front of the tubes and there was no way CLR would clean it off . Filling with new glycol tonight and fingers crossed it should be fine , with no leaks I hope .