I have a screw in one of my Goodyear run flats. Can you plug it or should the tire be taken off the rim and a patch be put on the inside? [IMG][/IMG] :auto:

 

Unless you plan on driving your car agressivly at high sustained speeds, I would not worry one bit about plugging it. Many here, including myself have plugged runflats with no problems whatsoever. And with that said, they are afterall, runflat tires, so if the plug were to fail, you would still have that feature.

 

I had a screw in my tire also, had it patched at a Goodyear dealer.

 

It can be plugged, and many times you will never have a problem with it. But it is always better to patch the tire on the inside.

 

If you have a discount tire near you, they will patch any tire for free....even if you didnt buy the tire there.

Daren

 

I have been told by a tire dealer that these tires should not be patched at all. They should be replaced. I also got the same information from Chevrolet. My take on this is that due to the short life-span of these tires, I will go with the plug in an emergency, and find a tire shop that will patch it if I can make it that far. BTW, I use Goodyear F1 Non-Run-Flat tires.

 

I had a tyre patched over 6 months ago and driven at high speed and on circuits. No problems.

 

This is what Goodyear says about repairing their EMT tires.
Product Service Bulletin
Important Information To Better Service Your Customers
Post For Ready Reference PSB #98-11
August 27, 1998 TO: Goodyear Company Owned Outlets
Goodyear Contract Dealers
SUBJECT: Puncture Repairing and Retreading of Goodyear Speed-Rated Tires (Includes Extended Mobility Tires)
With the ever increasing popularity of Goodyear Speed-Rated tires, it is important for you and your customers to know how repairing and retreading will affect the speed rating. Accordingly, the following information will enable you to discuss these important subjects with your customers.
I. SUMMARY STATEMENT
A. REPAIR
A Goodyear speed-rated tire may be repaired to correct a commonly repairable nail hole puncture in the tread area only, but proper materials and procedures must be applied. INCORRECT OR IMPROPER REPAIR WILL RESULT IN THE TIRE NO LONGER BEING SPEED-RATED BY GOODYEAR, and the Goodyear warranty may also be affected.
B. RETREADING
If a Goodyear speed-rated tire is retreaded, it no longer is speed rated by Goodyear .
II. DETAILED POLICY -Puncture Repair of Goodyear Speed-Rated Tires
A. The puncture must be confined to the tread area only. (See
"Repair Area", item III-B).
B. Restrictions on the number and size of repairs must be followed.
(See "Puncture Repair Limits" table, item III-C).
C. A detailed repair procedure must be followed.
(See "Repair Procedure", item III-E).
D. A Goodyear speed-rated new tire repaired in strict accordance with items II-A, B & C, will retain its speed rating.
III. REPAIR PROCEDURE FOR SPEED-RATED TIRES
A. GENERAL
The objective of the puncture repair is to seal the tire against loss of inflation pressure and to prevent damage to the carcass from moisture. In all puncture repairs approved by Goodyear, the hole must be filled with a plug, and a patch covering the hole must be applied according to repair material
manufacturer instructions to the inside of the tire. Never repair tires which are worn below 2/32" tread depth.
NOTE: No tire is to be repaired without first being removed from the rim.
B. REPAIR AREA
Repairing is limited to the tread area only within the outside grooves. No repairs are allowed in the tread area beyond the outside grooves or sidewall.
C. PUNCTURE REPAIR LIMITS
TIRE SPEED 130 mph and over (SPEED SYMBOL) (H, V, Z)
MAX. NUMBER: 1 REPAIRS
MAX. REPAIR 1/4 in. (6mm)
DIAMETER
Tires marked with an S, T, or U speed rating, and tires with no speed ratings may be repaired in accordance with the RMA "Puncture Repair Procedures for Automobile Tires" wall chart or Product Service Bulletin 98-12 dated August 28, 1998.
D. MATERIALS
1. Precured rubber plugs -1/4" (6mm) diameter
2. Precured patches
3. Precured plug/patch combi-units
4. Chemical vulcanizing cement
5. Pre-buff cleaner
E. REPAIR PROCEDURE
1. CAREFULLY REMOVE THE TIRE COMPLETELY FROM THE RIM.
2. Locate the puncture on the inside of the tire and circle with crayon.
3. Remove puncturing object if it is still in the tire.
4. Carefully inspect tire on a good tire spreader, with ample light, which will
show any cracks, breaks, punctures, damaged or broken beads.
5. Check liner for cuts, cracks, or holes which may cause the tubeless liner to
lose air.
6. Check the injury with an inspection awl :
a. Determine size and angle of injury
b. Check for ply or belt separation
7. Reject any tire that has separation, loose cords, damaged bead(s), or any
other non-repairable injury.
8. If the hole is simple and round, steps 9 through 17 of the puncture repair
procedure will be successful.
NOTE: If the hole shows evidence of fabric splitting, such an injury cannot be properly repaired using this puncture repair procedure. Such an injury must be skived out and repaired as a section (reinforced) repair, which will maintain the serviceability of the tire, but will invalidate the tire's speed rating. If a section repair is necessary , the customer must be advised, before the repair is made, that the tire will lose its speed rating, and must not exceed operation at normal highway speeds.
9. Use a pre-buff cleaner and a scraper to remove contaminants from the liner in the area to be buffed around the injury .
10. Use a 7/32"carbide cutter for Y4" repairs to clean out the
puncture.
a. Make sure that the drill follows the direction of the
puncturing object.
b. Always drill from inside to outside of tire.
11. Using chemical vulcanizing cement, lightly coat at least 1/2 of the tapered end of the repair plug. Install the plug in the prepared puncture according to the manufacturer's instructions. Trim the liner side of the plug slightly higher than the surface of the liner without stretching the plug.
12. Center the patch (or patch template) over the injury without removing the
backing. Adhere to patch or template instructions, as to positioning as related to bead location. Mark around the outside edge of the patch, approximately 1/4" larger than the patch.
13. Buff the liner and plug at the puncture location. The buffed area should be slightly larger than the patch. The buffed surface should be finely grained (RMA lor 2 texture) and even for proper bonding. Use care to prevent burning the rubber with the buffing tool. Do not buff through the liner. Do not buff into the marking crayon.
14. Clean the buffing dust from the tire using only a vacuum or brush. Do not
use gasoline or other petroleum solvents on the buffed area.
15. Coat the buffed liner surface and the patch with one evenly applied coat of
chemical vulcanizing cement in accordance with the recommendations of the repair materials manufacturer. Allow the cement to dry thoroughly. Do not touch the cemented areas.
16. Install the patch with the beads of the tire in the relaxed position. Position
the patch over the puncture according to the markings on the patch.
Stitch the entire patch starting from the center, keeping the strokes close together to avoid trapping air under the patch.
17. Cut off the protruding end of the plug about 1/8" above the tread surface.
18. FINAL INSPECTION -The repair must seal the inner liner and fill the
injury. After remounting and inflating check the repair, both beads and
valve with a soap solution to assure a complete seal.

 

I always take the tire off for repairs. I once got a spike in a tire and a garage pulled it out and repaired it on the car. But since I had driven it while it was low on air, there was a ring around the outside. I then took it to a tire shop and after dismounting, we saw that it had been a really long spike and had worn a hole about the size of a half dollar almost all the way through the tire from the inside. That was scary because obviously you could not see it from the outside.