Found a slow leak on rear G Force tire. - ZR-1 Net Registry Forums

ZR-1 Mack · 12-30-2005

The car was put away for the winter and the air was at 35 psi in all tires just before Thanksgiving. The air pressure on my rear tire was down to 27 psi today.

After some swearing I took the tire off and found what looks like a nail puncture thru one of the thick tread areas near the back side of the rim.

I know the speed rating is gone on the tire, but has anyone ever just put a plug patch on a tire and called it good?

The tires only have 3k on them and I sure would like to get another year or so out of them.

petefias · 12-30-2005

I had my Good Year dealer patched several tires for me from the inside on several cars with excellent results. Never used just the plug.

John Boothby · 12-31-2005

Do not plug it! Have it patched from the inside.

John Boothby · 12-31-2005

Did you verify that it was actually leaking? As ambient temp and atmospheric pressure relative to when you last aired it up can make a difference of a few pounds. Of course, your other tires would be showing lower values also.

ZR-1 Mack · 12-31-2005

John,

The rest of the tires were within 1/2 # of the pressure I left them at. The puncture had a very small air bubble after 10 or 15 seconds

When I spoke to the tire shop that had a machine big enough for the back rim, the plan was to patch from the inside . If the patch ended up getting too close to the radius for side wall they were afraid it could roll up over time.

If the tech thought that could happen, that shop was using a combination plug patch. It is basically a patch glued from the inside that is held in place by pulling thru the plug.

I am also afraid of the regular plug that you can use without taking the tire of the rim.

Thanks Ron

Tom · 01-03-2006

The Goodyear tires can be patched without losing the speed rating if the hole is in the tread area and below a certain diameter. A specific style of patch/plug has to be used from the inside. I have seen the instructions online, I believe it was at either the Goodyear tire site or at the Tire Rack site.

ZR-1 Mack · 01-05-2006

Thanks Tom,

Got the tire back and the slow leak was actually on the bead (about an inch long). The tire store checked the tire carefully all over and the puncture I thought I had didn't get thru to the inside of the tire.

They buffed a little corrosion on the rim and used a bead sealer before remounting the tire. So far so good.. pressure is holding.

12-30-2005	#1
ZR-1 Mack Join Date: Dec 2005 Location: Mid Hudson Valley, NY Posts: 72	Found a slow leak on rear G Force tire. The car was put away for the winter and the air was at 35 psi in all tires just before Thanksgiving. The air pressure on my rear tire was down to 27 psi today. After some swearing I took the tire off and found what looks like a nail puncture thru one of the thick tread areas near the back side of the rim. I know the speed rating is gone on the tire, but has anyone ever just put a plug patch on a tire and called it good? The tires only have 3k on them and I sure would like to get another year or so out of them. __________________ ZR-1 Mack ... 91 ZR1 Black/Black #487 NY

12-30-2005	#2
petefias Join Date: Aug 2005 Location: Lancaster, PA Posts: 147	Re: Found a slow leak on rear G Force tire. I had my Good Year dealer patched several tires for me from the inside on several cars with excellent results. Never used just the plug.

12-31-2005	#3
John Boothby Join Date: Jul 2005 Location: Las Vegas, Nevada Posts: 777	Re: Found a slow leak on rear G Force tire. Do not plug it! Have it patched from the inside. __________________ JB 1990 #148 Red/Saddle Haibeck AYBKG5 Chip/RC Engineering/Flowmasters/K&N/Samco/Fuzzy Dice :cheers:

12-31-2005	#4
John Boothby Join Date: Jul 2005 Location: Las Vegas, Nevada Posts: 777	Re: Found a slow leak on rear G Force tire. Did you verify that it was actually leaking? As ambient temp and atmospheric pressure relative to when you last aired it up can make a difference of a few pounds. Of course, your other tires would be showing lower values also. __________________ JB 1990 #148 Red/Saddle Haibeck AYBKG5 Chip/RC Engineering/Flowmasters/K&N/Samco/Fuzzy Dice :cheers:

12-31-2005	#5
ZR-1 Mack Join Date: Dec 2005 Location: Mid Hudson Valley, NY Posts: 72	Re: Found a slow leak on rear G Force tire. John, The rest of the tires were within 1/2 # of the pressure I left them at. The puncture had a very small air bubble after 10 or 15 seconds When I spoke to the tire shop that had a machine big enough for the back rim, the plan was to patch from the inside . If the patch ended up getting too close to the radius for side wall they were afraid it could roll up over time. If the tech thought that could happen, that shop was using a combination plug patch. It is basically a patch glued from the inside that is held in place by pulling thru the plug. I am also afraid of the regular plug that you can use without taking the tire of the rim. Thanks Ron __________________ ZR-1 Mack ... 91 ZR1 Black/Black #487 NY Last edited by ZR-1 Mack; 12-31-2005 at 01:58 PM.

01-03-2006	#6
Tom Join Date: Jan 2004 Location: Southern CA Posts: 108	Re: Found a slow leak on rear G Force tire. The Goodyear tires can be patched without losing the speed rating if the hole is in the tread area and below a certain diameter. A specific style of patch/plug has to be used from the inside. I have seen the instructions online, I believe it was at either the Goodyear tire site or at the Tire Rack site.

01-05-2006	#7
ZR-1 Mack Join Date: Dec 2005 Location: Mid Hudson Valley, NY Posts: 72	Re: Found a slow leak on rear G Force tire. Thanks Tom, Got the tire back and the slow leak was actually on the bead (about an inch long). The tire store checked the tire carefully all over and the puncture I thought I had didn't get thru to the inside of the tire. They buffed a little corrosion on the rim and used a bead sealer before remounting the tire. So far so good.. pressure is holding. __________________ ZR-1 Mack ... 91 ZR1 Black/Black #487 NY