o-ring/rubber lubricants
10-23-2007, 04:14 PM
#16
If silicone or even the fumes of it gets into the intake, it will form what's basically like a glass coating from the heat of combustion. A layer of this coating even one molecule thick on the O2 sensor will kill it. "Poisioning" of this kind and cracking of the ceramic in the sensor from the thermal shock of water hitting it are supposed to be by far the top two reasons for O2 sensor failure. That's why you'll see the "sensor safe" labeling on some of the various RTV and other sealants.
10-23-2007, 08:39 PM
#17
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10-23-2007, 09:35 PM
#18
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For general O-ring lube, I've used Napa's Sil-Glyde for years. Won't run or melt from -20 to 600F, and designed to be harmless to rubber. It does contain silicone, so use accordinly.
10-23-2007, 10:13 PM
#19
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10-24-2007, 01:15 AM
#20
"EZ Turn" and "Fuel Lube" are two brand names that are used in aircraft on o rings in fuel lines and valves:
http://www.aircraftspruce.com/catalo...ezturnlube.php
They are thick and waxy; a pound can is probably good for several lifetimes...
http://www.aircraftspruce.com/catalo...ezturnlube.php
They are thick and waxy; a pound can is probably good for several lifetimes...
10-24-2007, 01:21 AM
#21
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Use Dow 55. Google it. Specifically it lubes and will actually swell o-rings a bit for a better seal. Dow markets it as an o-ring lube. Recommended by some respected 911 engine builders for the 24 thru case o-rings that are highly susceptible to leaks.
10-24-2007, 04:06 AM
#22
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If silicone or even the fumes of it gets into the intake, it will form what's basically like a glass coating .........
Marton
10-24-2007, 09:56 AM
#23
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Anything wrong with glycerine?
AFAIK it doesn't hurt rubber and gets absorbed into the rubber after a short while.
If I'm not mistaken aren't most "Rubber Lube" products a mixture of mostly glycerine and water?
AFAIK it doesn't hurt rubber and gets absorbed into the rubber after a short while.
If I'm not mistaken aren't most "Rubber Lube" products a mixture of mostly glycerine and water?
10-24-2007, 02:48 PM
#25
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I have often wondered if Kentucky Jelly would be a good lube for our sunroofs. The lithium grease gets hard and oxidizes when it comes into contact with water. KY gets more slippery. Has anyone tried it?
10-24-2007, 10:31 PM
#26
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10-25-2007, 12:00 AM
#27
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Geeez, we are over anayzing this simple thing. I use WD-40 but if that is not good enough for others then I'm sure if we use gasoline or diesel as a lubricant, it wont harm anyting in the engine.
10-25-2007, 09:18 AM
#28
There was a recall on Nissan products for fuel injection leaks and the kits came with a special rubber lube that left no residue and was safe for O2 sensors and all rubber parts (excluding brake parts). I don,t recall the products name but I have the info at the house if anyone is interrested.
10-26-2007, 11:08 AM
#29
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K Y jelly is water based, dries up real sticky relatively quickly. Not good for anything needing lubrication more than an hour, sometimes less than that. Might be good for quick installation lube, but nothing longer than that. And it leaves a gummy residue after it dries.
