- Joined
- Nov 10, 2010
- Messages
- 189
Yeah they started with the zinc weights about the time they decided lead was too toxic to allow in the public anymore. The easiest way I know is to inspect the batch and the weights that look like the clip that holds it on the rim is seperate from the weight is zinc. I worked at a Firestone during the Explorer debacle and we ballanced a tire or two and got into reusing the lead weights to cast bars in old valve covers to make our roundy round car meet the weight requirement. It was better to bolt on weight low and where you wanted it rather than just throwing something in anywhere. Once you see a zinc weight you will be able to pick em out of a pile pretty easily. If you have a doubt, ask the tire guys at the local shop, a knowledgeable real live tire guy will have that training and be able to demonstrate the difference easily.
Bob
You can also tell by cutting them with side cutters. The lead cuts much easier than the zinc and has a lower melting temp.
Bryan