| Components - Details | |
|---|---|
| NHTSA Complaint Number: 006113020 | Incident Date: Mar, 23 2006 |
| Consumer's City: BOWLING GREEN | Consumer's State: KY |
| Vehicle Transmission Type: | Manufacturers Name: NITROUS OXIDE SYSTEMS |
| Model Name: 03001NOS | Model Year: 9999 |
| Vehicle Involved in a Crash: No | Component's Description: Equipment |
| Vehicle Involved in a Fire: No | Persons Injured: 0 |
| Vehicle's VIN#: | Date added to File: May, 23 2021 |
| Date Complaint Received: Jul, 23 2007 | Complaint Type: IVOQ |
| Incident Reported To Police: No | Purchase Date: - |
| Was Original Owner: No | Anti-lock Brakes: No |
| Number of Cylinders: 0 | Date of Manufacturer: - |
| Was Vehicle Towed: - | Description of the Complaints: Material composition of many holley performance supplied carburetor components does not meet astm specifications for zamak 3. high lead content present causes inter-granular corrosion, which is accelerated by high humidity environments. defective zinc cast fuel bowls, in particular, may result in fuel leakage and fire or explosion. affected part numbers are: fuel bowls 34r12377 fuel bowls 34r12378 fuel bowls 34r12379 metering blocks 34r12380 main bodies 8050 and 8051 these components were supplied to holley by stone bridge industries in china and built into most holley carburetor between september 2005 and july 2006. approximately 66% of all carburetor manufactured during that time have 1 or more components with lead at least 4x the specification limit (.020%). some parts tested over 40 times the specification limit (.28%). http://forums.corvetteforum.com/showthread.php?t=1455245&highlight=holley%2bcarb%2bproblems shows how one of the components used in street application has failed. further down in the discussion thread you can see what the affected date codes were. http://www.eazall.com/brochures/zinc%20alloy%20composition%20&%20control.pdf shows the affects of 4 hours steam testing of defective zinc castings. http://www.diecasting.org/media/offshore.htm shows the north american die casting association warning about this exact problem. these carburetors were sold to the public even though holley's engineering would only deviate up to .009% on lead content with a specification limit of .005%. engineering found information that indicated that up to .009% lead might not be harmful if the magnesium is within specification. unfortunately there is a correlation that shows when the lead content goes up the mg conetent goes down. *tr |
