So, I think it's time to check my injectors. Can someone point me towards some good information on how to do this. Also, where can I get the pop tool required to check the opening, spray pattern etc.?

I've seen this on eBay. Is this the tool?

http://cgi.ebay.com/ebaymotors/diesel-injection-tester-injector-nozzles-Bosch-Zexel_W0QQitemZ4610089207QQcategoryZ43991QQrdZ1QQcmdZViewItem


Thanks!

Randy