i doubt it but ok i guess if i run into any problems when i test run it i will open her up. It has been broken by someone experinced with the heat cycle method and after that it had lets see about 4 tanks of fuel through it either driving around my drive-way or idling. Did not run it hard yet. While i was running it 3 plugs i had owned went bad fairly quickly. One was a hot and others were one plug colder so warm? i guess? I was running it a bit rich and thats why i think my engine was cutting out. I thought it was too much compression at first but there may be other factors. BTW the glowplugs are only burnt out at the very tip of the plug. The majority of the coil still lights up. Also since it was cutting out/engine died i thought it was the damaged plug causing it. I plopped the glow igniter on and ran it around with it. Still managed to cut out but not neary as often without it. Without it would cut out randomly. But with it, it ran much longer with out cutting out. I don't know what i was thinking but i shoulda tuned the engine first to see the result. If they is a reason when u richen the mixture up and the enigine runs longer without cutting out with the glow ignitor on pls state. I was too busy setting up my car i forgot thje issues i had with my engine till now