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Do you Have Cracks in Your Valve Stems?

Bad Valve Stem

Last Saturday, while doing a routine vehicle check at an event, we discovered that all 4 valve stems were severely cracked around the bottom of each valve stem near the rim hole.
I recommended the owner replace them as soon as possible and I recommend you check you valve stems for cracks. Replace them if there are cracks. You risk a rollover if the valve lets go at highway speeds.

30 million defective valve stems made in China were installed in tires in the United States from Late September 2006 thru mid 2007. They forgot to add the UV protection or possibly ozone protection and the rubber is breaking down. The valves were manufactured for Dill Air Control Products of Oxford, N.C. by Topseal Shanghai Auto-Parts Co. Ltd. in China.

To be sure if you have one of the bad valves you need to dismount the tire and check the manufactures code on the valve from the inside. The bad codes are Dill TR-413CH, Dill TR-414, Dill TR-415, Dill TR-418 and Dill TR-423. But you can tell if it is cracking by bending the stem and looking for small cracks near the rim hole. See the picture I took of a bad one. It is worth replacing a cracking valve stem even if it turns out not to be one of the recalled valve stems.

I donít know how long it takes for the rubber to break down. It is possible the problem may just be showing up now. The National Transportation Safety Board only opened their investigation last year in May 2008.


Donít take a chance inspect your valve stems!





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Events for July


The line up of events planned for July are:
  1. July 04 Independence Day
  2. July 12 Customer Appreciation
  3. July 18 Getting Started Off-Road Driving
  4. July 25 Wine Safari
  5. July 31 Winching Clinic


A few more details follow.

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Free Customer Appreciation Event & trail Ride July 12

Customer Appreciation Event

Donít forget to join us in Hungry Valley SVRA on Sunday July 12th for the FREE customer appreciation event. We have teamed up with 5 of the local 4 Wheel Parts Stores (they are bringing raffle prizes and food). More details are posted on the web site. www.4x4training.com/Adventures/CustAppr.html

You are all invited July 12th! Everyone must register so we have enough food on hand - This is big! www.4x4training.com/calendar/calendar.php#Cust





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Wine Safari July 25


Wine Safari



Don't miss the Wine Safari. Click here for all details.
Our Wine Master will have a whole new bunch of bottles and some old favorites to taste. Make it a get-away weekend. Camp with us or stay in a local motel.




Register now.
http://4x4training.com/calendar/calendar.php#wine.

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Winch Clinic July 31

Need a Winch?

Make plans to attend the next Winch clinic. This one day clinic starts with the basics. By the end of the day you will be safely rigging some complex recoveries. More Details...


You can register directly at http://www.4x4training.com/calendar/calendar.php#Winch
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Rubicon Road Trip and Adventure August 10


Rubicon




The Rubicon Trip is 4 days on one of the most difficult trails you will ever love. If you plan to go, it is time to start preparations. The remoteness and difficulty level of the trails is such that you need to leave nothing to chance.
More details...



Register now and start planning.

http://4x4training.com/calendar/calendar.php#Rubicon.



I hope to see you on the trails!

Tom Severin, President
Badlands Off Road Adventures, Inc
4-Wheel Drive School
310-374-8047
http://www.4x4training.com
Make it Fun. Make it Safe.

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Want To Use This Article In Your Magazine, E-Zine, Club Newsletter Or Web Site? You are welcome to use it anytime, just be sure to include the following author/copyright information:

Tom Severin, 4x4 Coach, teaches 4WD owners how to confidently and safely use their vehicles to the fullest extent in difficult terrain and adverse driving conditions. Visit www.4x4training.com to develop or improve your driving skill.

Copyright 2009, Badlands Off-Road Adventures, Inc.





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