Originally Posted by mugenb46

yes, detination, or predetination. even though these little basterds don't have a coil, they can fire before or after TDC, on our modified engines i like to run between 22 and 24 thou, with much more agressive timming we can end up with only one shim, but the engines that get sold are set to have a varience of between 22 and 24. you would be suprised how many new out of the box engines and i mean all brands not just one fire befor TDC or after. a pre or detinating motor will blow plugs and eat coils out of glow plugs, and a worn rod will also cause this detination and eratic running, so get some shims and do a bolt check and everything should be good, and also try a different brand if the others are not working out. I havn't had problems wiith OS but alot of people say some come dead even though there new. Odonnol plugs are also good.