Anyone seen a coolant overflow bottle like this?

[jessipup]

Please let me know how that turns out. I;ve also got one of those I would like to restore.
Now if you google the part#. You may find that there is actually some crazy copmany in Yapan or China that is making that part.But to get just one it's like 200 bucks or so and for 200samoleans ? I'll stay dirty

 

[idrivemopar]

Here are my results after soaking for 5 days in a 2.5 water to 1 part bleach, not really much if any improvement with reducing the yellowing. Im not convienced that this method really works. The dirt and overspray on it came off, thats about it.

 

[RustyRatRod]

I wonder what blasting gently it with plastic media would do.

 

[idrivemopar]

I dont think blasting would do much as the yellowing is deeper then just on the surface.

 

[RustyRatRod]

I did some quick lookin around and found this on a Chevelle forum.

http://retr0bright.wikispaces.com/

Dude tried it and said it worked.....allthough he posted no pics.

 

[bigredbird]

I left it in for 24 hours. Also. what ratio should the mix be? I can give it a go again and see how it does.

Try submerging it in a tub of pure white vinegar for a few days. That stuff peels scaling off like magic.

 

[kb73rr]

I've had the same issue with my car - overflow and windshield fluid bottles both. I tried bleach (50/50 and then 100%), hydrogen peroxide, and about every cleaner I could get my hands on including some heavy duty industrial alkaline stuff we use in the ultrasonic cleaner at work. I cleaned the bottles in there at max power for an hour at 160F.

By then the tanks were spotlessly clean inside and out but the yellowing remained. Then I used a razor blade and cut a little sliver from the bottom mount and sure enough the yellowing was still there. It's throughout the plastic. I don't believe it is possible to ever get it back to white again. Additionally, my car did not have the original overflow bottle. I looked up the part number in the parts manual (3673808) and can't find one anywhere - neither NOS or reproduction. I bought the one that Herb's website shows is for a 73RR. It's not remotely close. I sent it back. Bought another on eBay and it was the same as the one Herb's had. Sent it back too.

Anyhow, once I had the bottles cleaned up it was obvious my radiator overflow bottle wasn't nearly as old or yellowed as the washer fluid bottle. They just didn't look right together. Yeah, OCD kicking in big time as usual with this car!!!!!

I finally just replaced both with new white ones. The washer fluid bottle is a Chrysler lisenced reproduction (woo hoo) and the "radiator overflow bottle" I had turned out to be a "Chevy Truck Windshield Washer Bottle Kit, 1976-1984". I found a new one at Eckler's Classic Chevy Trucks.

Now I have two new white bottles....

.....and they still don't look right. I think I would prefer two nice clean, equally aged, correct bottles. Probably just like what you have now.

 

[scotts74birds]

Found this on an R/C site. Hope it helps. http://traxxas.com/forums/showthread.php?8953912-How-do-you-whiten-nylon-plastic
My concern about any whitening to these is that it may become brittle. BTW, I think the part # is 3673834.

 

[BigBlock61]

What about a plastic dye and just dye it white again. It would make it look good but probably not look... right.

 

[TekHousE]

That retrobrite is a REACTIVE process, and interacts with the plastic. I would be worried about the plastic becoming brittle. Especially when our cars are twisting and vibrating all over the place, unlike a computer, which the retrobrite process was designed for.

 

[brasil]

...leave the bottle as the bottle is . Just a little patina..but the bottle still works ! If you torch her with so much chemical stuff...who knows ?? Shouldn´t be so good.... (justmy 2 cents )

Greetings Juergen