The Ford Barn

Colonel Biggs · 07-27-2014, 11:05 AM

I have a Goodyear tire (really, the tube) which is leaking about 15 pounds of air pressure over the course of two months. This has been going on for several years. Since I have a compressor handy, it has always been easier to inflate the tire than to pull it apart - until yesterday.

I submerged the tube and particularly the valve section in water, but could not find a trace of air escape. With the tube out of the tire itself, it inflates very rapidly. However, I cannot get a pressure reading with any of my pressure gauges. I have inserted different cores into the valve stem, but with the same result. By depressing the top of the core, air will release, but slowly. Of course, it may be that an inflated tube by itself does not generate enough pressure for a reading.

I am going to reseal the opening where the metal valve stem enters the tube. Is rubber cement preferable to contact cement? The rubber cement bottle does not give any curing time (before re-inflating the tube), whereas my contact cement bottle shows seven days required for curing.

Or, am I missing something else?

Gordon

Houston, Texas

07-27-2014, 11:05 AM	#1
Colonel Biggs Senior Member Join Date: Jun 2010 Location: Madison, NJ Posts: 158	Very slow tire leak I have a Goodyear tire (really, the tube) which is leaking about 15 pounds of air pressure over the course of two months. This has been going on for several years. Since I have a compressor handy, it has always been easier to inflate the tire than to pull it apart - until yesterday. I submerged the tube and particularly the valve section in water, but could not find a trace of air escape. With the tube out of the tire itself, it inflates very rapidly. However, I cannot get a pressure reading with any of my pressure gauges. I have inserted different cores into the valve stem, but with the same result. By depressing the top of the core, air will release, but slowly. Of course, it may be that an inflated tube by itself does not generate enough pressure for a reading. I am going to reseal the opening where the metal valve stem enters the tube. Is rubber cement preferable to contact cement? The rubber cement bottle does not give any curing time (before re-inflating the tube), whereas my contact cement bottle shows seven days required for curing. Or, am I missing something else? Gordon Houston, Texas