GLOW PLUG LEAK
Posted by Thalium on June 08 2009 08:51:44
It isn't commonplace, but a small leak in the seal between your glow plug and your head button can greatly reduce engine performance and knock your tune out of whack. Look down your cylinder head while turning your engine over and if there is a leak, you should see fuel bubbles exiting around your glow plug seal. This is more of an issue with regular glow plugs (not turbo-style glow plugs) where a copper washer is used to make the seal. The problem is easily fixed by simply tightening your glow plug with a little more authority. Don't over-tighten, as you may stripe out your head button, but if you still have a small leak even after wrenching that sucker down, you may have to swap out the copper washer for a fresh one to keep all of your engines' explosive juices in the combustion chamber where they belong.