CurtPalme.com Home Theater Forum

**Curt Palme** · Posted: Mon Nov 25, 2013 3:01 pm Post subject: New info for Marquee owners?

This was new to me over the weekend, so I'll share. I've had a few Marquee 9500s come in recently with massive discoloration of the glycol, I call it 'urine yellow'. Yuck! I bought one set last year that had bad bellows and discoloration, etc. This wasn't fungus per se, it was just a uniform yellow coloring of the glycol, and of course the color spectrum went all to hell.

I had a hunch as to why this was happening, and I confirmed it this weekend. I had drained and cleaned out the LC chamber of three tubes, and filled them with water as to not waste glycol. I sat the tubes upside down on a shelf for the last 2 months, and checked them yesterday. All three had wisps of fungus type looking crap floating in the water, and having left it alone, I'm sure it would have turned yellow.

I then drained the water out, and checked the fill holes. On all three tubes, the rubber washer under the fill hole screws had turned to mush, and the mush mixed with the water/glycol, causing the yellow tint.

Time to source out new fill screws and thin rubber washers.

stridsvognen · Guest

Curt it would be nice if you could have fill hole screws, and the screws to put the below.

I guess there is 2 lengths of screws for the belows, one for those old models with metal ring, and another for the new with plast ring.

With the metric system here its realy hard to find any inch screws around, i guess i could measure and find some on ebay, but if you have them for a good price, you can sende with other parts when ordering stuff from you. (Hint.. Marquee housings.)

**Curt Palme** · Posted: Mon Nov 25, 2013 6:21 pm Post subject:

I'm on it, ditto for the housings. I need to get screws that hold the belllows in, mine are really rusty and I don't want to send them to you that way. Smile

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Go Screw!

Fastenal Canada Co
12788 76a Ave, SURREY, BC V3W1S9
Canada
(604) 501-9016

Stainless usually in stock, bags of 50 way below hardware store prices

**Curt Palme** · Posted: Mon Nov 25, 2013 7:06 pm Post subject:

Hey, screw yourself! Very Happy

thanks, I'll go check them out today or tomorrow.

digitalayon · Joined: 02 Mar 2009 Posts: 921

ditto on the fastenal

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

fill-hole is a 6-32 x 3/8" long button head socket screw. Ring-clamp are are typical 6-32 socket head cap screw but don't recall the length, I think they're also 3/8" long for the old steel retaining ring

mcmaster carr has the high grade 316 stainless 10 bucks for 100

http://www.mcmaster.com/#socket-head-cap-screws/=pjtt3w

for the fill screws part number 98164A107

cap screws 92185A147

**Curt Palme** · Posted: Fri Dec 27, 2013 11:58 pm Post subject:

OK, I went to Fastenal, and they supplied me with everything except the most important part.. those damn washers under the fill holes that are impregnated with rubber.

What are they called, where can I get them? Fastenal says they know exactly what they are, but can't get them from their suppliers. I need 50 of them.. STAT! Can't fill my re-bellowed/re-glycoled tubes without them.

<edit> I called Fastenal back, it's called a 'bonded sealing washer' if anyone cares. Lots of them on eBay, ordering a crapload now...

<edit again> ebay nor anyone local that I could find had anything small enough. McMaster-Carr came through!

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

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Sika-flex will do the job, or Permatex "The Right Stuff".

**Curt Palme** · Posted: Sat Dec 28, 2013 5:49 pm Post subject:

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

**Curt Palme** · Posted: Sat Dec 28, 2013 11:40 pm Post subject:

OK, thanks will do! For fun, I put some water into the contaminated housing after flushing the chamber out, and after 2 months of sitting on the shelf, I could see the water starting to discolor due to more seepage from the rubber washers into the water.

Seems like those sealing washers have a limited lifespan just like the bellows. I'll be changing those washers out with every tube that comes through here from now on.

Melifluonze · Posted: Sun Dec 29, 2013 3:30 am Post subject:

Sooo.... any good source for the washers? Did this thread die without an answer (or did I just read badly)?

- Melifluonze