HMS: Engines blew due to bad parts
CHARLOTTE, N.C. -- Hendrick Motorsports officials say a bad batch of parts led to engine failures by Dale Earnhardt Jr. and Mark Martin in Sunday's Sprint Cup race at Auto Club Speedway in Fontana, Calif.
"Both cars had valve train failures that were related to a specific batch of parts from a vendor," said Doug Duchardt, HMS' vice president of development.
Duchardt said the parts were not restricted to use by Earnhardt and Martin, whose cars are prepared out of the same building. ...
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